subject:"Re\: \[Ryu\-devel\] How to setup multiple ASes in Mininet represented by switches in independent namespaces"

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-12-07 Thread Pynbiang Hadem

Hi Takeshi,

If you were to introduce a controller for each AS, how would your example
be modified to achieve this?.

Thanks
Hadem

On Mon, Mar 12, 2018 at 11:11 AM Yi Tseng  wrote:

> [+mininet mailing list]
>
> Hi,
>
> I think what you need to do is to create 6 network namespace and run
> quagga+zebra process inside 3 of namespace.
>
> No switch(and controller) in your topology.
>
> All you need is to install mininet and quagga(via apt-get) and enable ip
> forwarding on your host machine
>
> And run this example, this example creates 3 AS with 3 hosts, AS exchanges
> prefix information using BGP message
> https://github.com/TakeshiTseng/SDN-Work/blob/master/mininet/bgp-3as/
>
> Yi
>
> 2018-03-11 16:21 GMT+08:00 Pynbiang Hadem :
>
>> Hi,
>>
>> Can anyone suggest how i can achieve the target objective in mininet and
>> ryu.
>>
>> Thanks
>> Hadem
>>
>> On Sun, Mar 11, 2018 at 11:30 AM, knet solutions <
>> knetsolutio...@gmail.com> wrote:
>>
>>> Hi ,
>>>
>>> KNet is alternative for Mininet.  Host systems are based on docker not
>>> namespace.  KNet supports traditional routers(bird routing daemon), Servers
>>> also as hosts.
>>>
>>> But openvswitches are in the host system. Not in separate namespace or
>>> docker contrainers.
>>>
>>> I thought, you are looking for traditional BGP router in your topology.
>>> Thats why i suggested this.
>>>
>>> I guess, you need openvswitch in separate namespace / docker container
>>> .  Currently KNet doesnt support this.
>>>
>>> Thanks
>>> Suresh.
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Sat, Mar 10, 2018 at 11:22 AM, Pynbiang Hadem <
>>> pynbiang.ha...@gmail.com> wrote:
>>>
 Hi Suresh,

 1) KNet should be installed on Mininet or without Mininet?.
 2) To achieve independent namespaces for each switches, do we need
 Quagga and Zebra?.

 Thanks
 Hadem


 On Sat, Mar 10, 2018 at 10:24 AM, Pynbiang Hadem <
 pynbiang.ha...@gmail.com> wrote:

> Thanks Suresh from KNet.
>
> I will read the documentation, try it out and get back to you for
> help, clarification and advice.
>
> Thanks
> Hadem
>
>
> On Fri, Mar 9, 2018 at 8:46 PM, knet solutions <
> knetsolutio...@gmail.com> wrote:
>
>> Hi,
>>
>> Check  knet. It supports router node(bird routing daemon). you can
>> setup such topology.
>>
>> http://knet-topology-builder.readthedocs.io/en/latest/
>>
>> I can help you.
>>
>> Thanks
>> suresh
>>
>>
>> On Fri, Mar 9, 2018 at 8:13 PM, Pynbiang Hadem <
>> pynbiang.ha...@gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I want to simulate BGP connectivity between 3 ASes in Mininet with
>>> one host in each AS as below:
>>>
>>>   h1 -- AS1 -- AS2 -- AS3 -- h3
>>> h2
>>>
>>> How can i create the topology so that each AS is represented by a
>>> switch/router and each router is in a separate namespace?
>>> What are the requirements to setup such an environment?
>>>
>>> Thanks
>>> Hadem
>>>
>>>
>>>
>>>
>>> --
>>> Check out the vibrant tech community on one of the world's most
>>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>>> ___
>>> Ryu-devel mailing list
>>> Ryu-devel@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>>
>>>
>>
>>
>> --
>>
>> *Regards, *
>> *Knet solutions.*
>>
>> https://github.com/knetsolutions/KNet
>> http://knet-topology-builder.readthedocs.io/
>> http://knetsolutions.in/
>>
>>
>

>>>
>>>
>>> --
>>>
>>> *Regards, *
>>> *Knet solutions.*
>>>
>>> https://github.com/knetsolutions/KNet
>>> http://knet-topology-builder.readthedocs.io/
>>> http://knetsolutions.in/
>>>
>>>
>>
>>
>> --
>> Check out the vibrant tech community on one of the world's most
>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>> ___
>> Ryu-devel mailing list
>> Ryu-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>
>>
>
>
> --
> Yi Tseng (a.k.a Takeshi)
> Taiwan National Chiao Tung University
> Department of Computer Science
> W2CNLab
>
> https://takeshi.tw
>
___
Ryu-devel mailing list
Ryu-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/ryu-devel

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-05-01 Thread Yi Tseng

Hi

Can you list all listen ports inside your network namespace *r1* ?

Also, I believe that the name of BGP daemon is called


*bgpd*

2018-05-01 20:32 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> I have now installed the setup environment on Ubuntu 16.04. I am still
> getting the same problem.
> I observed the following:
> 1) If i run: *sudo ryu-manager ryu/services/protocols/bgp/application.py
> --bgp-app-config-file ryu/services/protocols/bgp/bgp_sample_conf.py *
> inside the namespace  i.e using *mininet/util/m r1*
> i am getting the error: *Error creating socket: [Errno 98] Address
> already in use*
> The error comes even if i stop quagga using: *sudo /etc/init.d/quagga
> stop*
> 2) If i try to kill quagga using: *sudo killall quagga*   i get the
> following error message.
> * --quagga: no process found*
> 3) If i run:  *sudo ryu-manager ryu/services/protocols/bgp/application.py
> --bgp-app-config-file ryu/services/protocols/bgp/bgp_sample_conf.py *
> directly inside a terminal *without  using mininet/util/m r1*
> the application works fine without any error.
>
> Pls advice how to resolve the problem.
>
> Thanks
> Hadem
>
> On Thu, Apr 19, 2018 at 6:22 PM, Yi Tseng  wrote:
>
>> Hi,
>>
>> I use apt-get to install quagga
>>
>> can you check all listen port on your OS before you start Ryu ?
>>
>> 2018-04-19 20:28 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> *I am now running the complete environment in Ubuntu 16.04. However i am
>>> still getting the below error:*
>>> *root@ubuntu:~/ryu# ryu-manager
>>> ryu/services/protocols/bgp/application.py --bgp-app-config-file
>>> bgpconfig1.py*
>>> *loading app ryu/services/protocols/bgp/application.py*
>>> *instantiating app ryu/services/protocols/bgp/application.py of
>>> RyuBGPSpeaker*
>>> *API method core.start called with args: {'router_id': '10.0.0.1',
>>> 'label_range': (100, 10), 'waiter': >> 0x7f883a1f5510>, 'bgp_server_port': 179, 'local_as': 65001,
>>> 'allow_local_as_in_count': 0, 'refresh_stalepath_time': 0, 'cluster_id':
>>> None, 'local_pref': 100, 'bgp_server_hosts': ['0.0.0.0', '::'],
>>> 'refresh_max_eor_time': 0}*
>>> *Error creating socket: [Errno 98] Address already in use*
>>>
>>> *I have issued the killall comand as below:*
>>> *root@ubuntu:~/ryu# sudo killall quagga*
>>> *quagga: no process found*
>>>
>>> Pls Guide. Can you share your Quagga Installation/Configuration Steps?.
>>> That would clarify several doubts.
>>> It would really be helpful if you can run the BGP applications on r1 and
>>> r2 and see the result.
>>>
>>> Thanks
>>> Hadem
>>>
>>>
>>> On Wed, Apr 18, 2018 at 9:29 AM, Yi Tseng  wrote:
>>>
 I tested it with 16.04, but it should also works on 14.04

 2018-04-18 0:34 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
> Will your topology work only in Ubuntu 16 or will it also work in
> Ubuntu 14 LTS?.
> Presently I'm using Ubuntu 14 LTS.
>
> Thanks
> Hadem
>
> On Tue 17 Apr, 2018, 12:20 PM Yi Tseng,  wrote:
>
>> Please use *killall* command to kill quagga daemon instead of using
>> *service* command
>>
>> 2018-04-13 22:31 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> I tried stopping quagga as below:
>>>
>>> *root@mininet-vm:~/ryu# sudo service quagga stop*
>>> *Stopping Quagga monitor daemon: (watchquagga).*
>>> *Stopping Quagga daemons (prio:0): (zebra) (bgpd) (ripd) (ripngd)
>>> (ospfd) (ospf6d) (isisd) (babeld).*
>>> *Removing all routes made by zebra.*
>>>
>>> However when i run the BGP application, i am still getting the same
>>> error as before.
>>>
>>> Thanks
>>> Hadem
>>>
>>>
>>>
>>> On Fri, Apr 13, 2018 at 5:38 PM, Yi Tseng 
>>> wrote:
>>>
 Yes,

 I think because Ryu and Quagga uses same port for bgp protocol

 2018-04-13 19:44 GMT+08:00 Pynbiang Hadem >>> >:

> Hi Takeshi,
>
> No, i have not shutdown Quagga daemon before starting Ryu. Do i
> need to stop it?.
>
> Thanks
> Hadem
>
> On Thu, Apr 12, 2018 at 9:35 PM, Yi Tseng 
> wrote:
>
>> Hi
>>
>> please see comment inline:
>>
>> 2018-04-12 23:10 GMT+08:00 Pynbiang Hadem <
>> pynbiang.ha...@gmail.com>:
>>
>>> Hi Takeshi,
>>>
>>> I am following the below steps:
>>> 1) sudo python as.py  ---> runs successfully
>>> 2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new
>>> prompt but not sure if i am in a new separate namespace. Pls 
>>> confirm if
>>> this is the correct way
>>> 3) On a new terminal: sudo mininet/util m r2 ---> Gives me a
>>> new prompt but not sure if i am in a new separate namespace. Pls
>>> confirm if this is the correct way
>>>
>>
>> You can

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-05-01 Thread Pynbiang Hadem

Hi Takeshi,

I have now installed the setup environment on Ubuntu 16.04. I am still
getting the same problem.
I observed the following:
1) If i run: *sudo ryu-manager ryu/services/protocols/bgp/application.py
--bgp-app-config-file ryu/services/protocols/bgp/bgp_sample_conf.py *
inside the namespace  i.e using *mininet/util/m r1*
i am getting the error: *Error creating socket: [Errno 98] Address
already in use*
The error comes even if i stop quagga using: *sudo /etc/init.d/quagga
stop*
2) If i try to kill quagga using: *sudo killall quagga*   i get the
following error message.
* --quagga: no process found*
3) If i run:  *sudo ryu-manager ryu/services/protocols/bgp/application.py
--bgp-app-config-file ryu/services/protocols/bgp/bgp_sample_conf.py *
directly inside a terminal *without  using mininet/util/m r1*
the application works fine without any error.

Pls advice how to resolve the problem.

Thanks
Hadem

On Thu, Apr 19, 2018 at 6:22 PM, Yi Tseng  wrote:

> Hi,
>
> I use apt-get to install quagga
>
> can you check all listen port on your OS before you start Ryu ?
>
> 2018-04-19 20:28 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> *I am now running the complete environment in Ubuntu 16.04. However i am
>> still getting the below error:*
>> *root@ubuntu:~/ryu# ryu-manager ryu/services/protocols/bgp/application.py
>> --bgp-app-config-file bgpconfig1.py*
>> *loading app ryu/services/protocols/bgp/application.py*
>> *instantiating app ryu/services/protocols/bgp/application.py of
>> RyuBGPSpeaker*
>> *API method core.start called with args: {'router_id': '10.0.0.1',
>> 'label_range': (100, 10), 'waiter': > 0x7f883a1f5510>, 'bgp_server_port': 179, 'local_as': 65001,
>> 'allow_local_as_in_count': 0, 'refresh_stalepath_time': 0, 'cluster_id':
>> None, 'local_pref': 100, 'bgp_server_hosts': ['0.0.0.0', '::'],
>> 'refresh_max_eor_time': 0}*
>> *Error creating socket: [Errno 98] Address already in use*
>>
>> *I have issued the killall comand as below:*
>> *root@ubuntu:~/ryu# sudo killall quagga*
>> *quagga: no process found*
>>
>> Pls Guide. Can you share your Quagga Installation/Configuration Steps?.
>> That would clarify several doubts.
>> It would really be helpful if you can run the BGP applications on r1 and
>> r2 and see the result.
>>
>> Thanks
>> Hadem
>>
>>
>> On Wed, Apr 18, 2018 at 9:29 AM, Yi Tseng  wrote:
>>
>>> I tested it with 16.04, but it should also works on 14.04
>>>
>>> 2018-04-18 0:34 GMT+08:00 Pynbiang Hadem :
>>>
 Hi Takeshi,
 Will your topology work only in Ubuntu 16 or will it also work in
 Ubuntu 14 LTS?.
 Presently I'm using Ubuntu 14 LTS.

 Thanks
 Hadem

 On Tue 17 Apr, 2018, 12:20 PM Yi Tseng,  wrote:

> Please use *killall* command to kill quagga daemon instead of using
> *service* command
>
> 2018-04-13 22:31 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> I tried stopping quagga as below:
>>
>> *root@mininet-vm:~/ryu# sudo service quagga stop*
>> *Stopping Quagga monitor daemon: (watchquagga).*
>> *Stopping Quagga daemons (prio:0): (zebra) (bgpd) (ripd) (ripngd)
>> (ospfd) (ospf6d) (isisd) (babeld).*
>> *Removing all routes made by zebra.*
>>
>> However when i run the BGP application, i am still getting the same
>> error as before.
>>
>> Thanks
>> Hadem
>>
>>
>>
>> On Fri, Apr 13, 2018 at 5:38 PM, Yi Tseng 
>> wrote:
>>
>>> Yes,
>>>
>>> I think because Ryu and Quagga uses same port for bgp protocol
>>>
>>> 2018-04-13 19:44 GMT+08:00 Pynbiang Hadem 
>>> :
>>>
 Hi Takeshi,

 No, i have not shutdown Quagga daemon before starting Ryu. Do i
 need to stop it?.

 Thanks
 Hadem

 On Thu, Apr 12, 2018 at 9:35 PM, Yi Tseng 
 wrote:

> Hi
>
> please see comment inline:
>
> 2018-04-12 23:10 GMT+08:00 Pynbiang Hadem <
> pynbiang.ha...@gmail.com>:
>
>> Hi Takeshi,
>>
>> I am following the below steps:
>> 1) sudo python as.py  ---> runs successfully
>> 2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new
>> prompt but not sure if i am in a new separate namespace. Pls confirm 
>> if
>> this is the correct way
>> 3) On a new terminal: sudo mininet/util m r2 ---> Gives me a new
>> prompt but not sure if i am in a new separate namespace. Pls
>> confirm if this is the correct way
>>
>
> You can check if the ip address and routes is correct from shell
>
>
>> 4) I executed the following on the supposedly r1 and r2 terminals:
>>r1(supposedly): sudo ryu-manager
>> ryu/services/protocols/bgp/application.py --bgp-app-config-file
>> bgpconfig1.py
>>r2(supposedly): sudo ryu-man

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-19 Thread Yi Tseng

Hi,

I use apt-get to install quagga

can you check all listen port on your OS before you start Ryu ?

2018-04-19 20:28 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> *I am now running the complete environment in Ubuntu 16.04. However i am
> still getting the below error:*
> *root@ubuntu:~/ryu# ryu-manager ryu/services/protocols/bgp/application.py
> --bgp-app-config-file bgpconfig1.py*
> *loading app ryu/services/protocols/bgp/application.py*
> *instantiating app ryu/services/protocols/bgp/application.py of
> RyuBGPSpeaker*
> *API method core.start called with args: {'router_id': '10.0.0.1',
> 'label_range': (100, 10), 'waiter':  0x7f883a1f5510>, 'bgp_server_port': 179, 'local_as': 65001,
> 'allow_local_as_in_count': 0, 'refresh_stalepath_time': 0, 'cluster_id':
> None, 'local_pref': 100, 'bgp_server_hosts': ['0.0.0.0', '::'],
> 'refresh_max_eor_time': 0}*
> *Error creating socket: [Errno 98] Address already in use*
>
> *I have issued the killall comand as below:*
> *root@ubuntu:~/ryu# sudo killall quagga*
> *quagga: no process found*
>
> Pls Guide. Can you share your Quagga Installation/Configuration Steps?.
> That would clarify several doubts.
> It would really be helpful if you can run the BGP applications on r1 and
> r2 and see the result.
>
> Thanks
> Hadem
>
>
> On Wed, Apr 18, 2018 at 9:29 AM, Yi Tseng  wrote:
>
>> I tested it with 16.04, but it should also works on 14.04
>>
>> 2018-04-18 0:34 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>> Will your topology work only in Ubuntu 16 or will it also work in Ubuntu
>>> 14 LTS?.
>>> Presently I'm using Ubuntu 14 LTS.
>>>
>>> Thanks
>>> Hadem
>>>
>>> On Tue 17 Apr, 2018, 12:20 PM Yi Tseng,  wrote:
>>>
 Please use *killall* command to kill quagga daemon instead of using
 *service* command

 2018-04-13 22:31 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> I tried stopping quagga as below:
>
> *root@mininet-vm:~/ryu# sudo service quagga stop*
> *Stopping Quagga monitor daemon: (watchquagga).*
> *Stopping Quagga daemons (prio:0): (zebra) (bgpd) (ripd) (ripngd)
> (ospfd) (ospf6d) (isisd) (babeld).*
> *Removing all routes made by zebra.*
>
> However when i run the BGP application, i am still getting the same
> error as before.
>
> Thanks
> Hadem
>
>
>
> On Fri, Apr 13, 2018 at 5:38 PM, Yi Tseng  wrote:
>
>> Yes,
>>
>> I think because Ryu and Quagga uses same port for bgp protocol
>>
>> 2018-04-13 19:44 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> No, i have not shutdown Quagga daemon before starting Ryu. Do i need
>>> to stop it?.
>>>
>>> Thanks
>>> Hadem
>>>
>>> On Thu, Apr 12, 2018 at 9:35 PM, Yi Tseng 
>>> wrote:
>>>
 Hi

 please see comment inline:

 2018-04-12 23:10 GMT+08:00 Pynbiang Hadem >>> >:

> Hi Takeshi,
>
> I am following the below steps:
> 1) sudo python as.py  ---> runs successfully
> 2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new
> prompt but not sure if i am in a new separate namespace. Pls confirm 
> if
> this is the correct way
> 3) On a new terminal: sudo mininet/util m r2 ---> Gives me a new
> prompt but not sure if i am in a new separate namespace. Pls
> confirm if this is the correct way
>

 You can check if the ip address and routes is correct from shell


> 4) I executed the following on the supposedly r1 and r2 terminals:
>r1(supposedly): sudo ryu-manager
> ryu/services/protocols/bgp/application.py --bgp-app-config-file
> bgpconfig1.py
>r2(supposedly): sudo ryu-manager
> ryu/services/protocols/bgp/application.py --bgp-app-config-file
> bgpconfig2.py
>
> However I am getting the following errors on both the supposedly
> r1 and r2 terminal.
> ---
> Error creating socket: [Errno 98] Address already in use
> hub: uncaught exception: Traceback (most recent call last):
>   File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py",
> line 59, in _launch
> return func(*args, **kwargs)
>   File "/usr/local/lib/python2.7/dist
> -packages/ryu/services/protocols/bgp/base.py", line 256, in start
> self._run(*args, **kwargs)
>   File "/usr/local/lib/python2.7/dist
> -packages/ryu/services/protocols/bgp/core.py", line 238, in _run
> server_thread.wait()
> AttributeError: 'NoneType' object has no attribute 'wait'
> -
>


 Have you shutdown Quagga daemon before you start Ryu?


>
> Pls Guide. Am

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-19 Thread Pynbiang Hadem

Hi Takeshi,

*I am now running the complete environment in Ubuntu 16.04. However i am
still getting the below error:*
*root@ubuntu:~/ryu# ryu-manager ryu/services/protocols/bgp/application.py
--bgp-app-config-file bgpconfig1.py*
*loading app ryu/services/protocols/bgp/application.py*
*instantiating app ryu/services/protocols/bgp/application.py of
RyuBGPSpeaker*
*API method core.start called with args: {'router_id': '10.0.0.1',
'label_range': (100, 10), 'waiter': , 'bgp_server_port': 179, 'local_as': 65001,
'allow_local_as_in_count': 0, 'refresh_stalepath_time': 0, 'cluster_id':
None, 'local_pref': 100, 'bgp_server_hosts': ['0.0.0.0', '::'],
'refresh_max_eor_time': 0}*
*Error creating socket: [Errno 98] Address already in use*

*I have issued the killall comand as below:*
*root@ubuntu:~/ryu# sudo killall quagga*
*quagga: no process found*

Pls Guide. Can you share your Quagga Installation/Configuration Steps?.
That would clarify several doubts.
It would really be helpful if you can run the BGP applications on r1 and r2
and see the result.

Thanks
Hadem


On Wed, Apr 18, 2018 at 9:29 AM, Yi Tseng  wrote:

> I tested it with 16.04, but it should also works on 14.04
>
> 2018-04-18 0:34 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>> Will your topology work only in Ubuntu 16 or will it also work in Ubuntu
>> 14 LTS?.
>> Presently I'm using Ubuntu 14 LTS.
>>
>> Thanks
>> Hadem
>>
>> On Tue 17 Apr, 2018, 12:20 PM Yi Tseng,  wrote:
>>
>>> Please use *killall* command to kill quagga daemon instead of using
>>> *service* command
>>>
>>> 2018-04-13 22:31 GMT+08:00 Pynbiang Hadem :
>>>
 Hi Takeshi,

 I tried stopping quagga as below:

 *root@mininet-vm:~/ryu# sudo service quagga stop*
 *Stopping Quagga monitor daemon: (watchquagga).*
 *Stopping Quagga daemons (prio:0): (zebra) (bgpd) (ripd) (ripngd)
 (ospfd) (ospf6d) (isisd) (babeld).*
 *Removing all routes made by zebra.*

 However when i run the BGP application, i am still getting the same
 error as before.

 Thanks
 Hadem



 On Fri, Apr 13, 2018 at 5:38 PM, Yi Tseng  wrote:

> Yes,
>
> I think because Ryu and Quagga uses same port for bgp protocol
>
> 2018-04-13 19:44 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> No, i have not shutdown Quagga daemon before starting Ryu. Do i need
>> to stop it?.
>>
>> Thanks
>> Hadem
>>
>> On Thu, Apr 12, 2018 at 9:35 PM, Yi Tseng 
>> wrote:
>>
>>> Hi
>>>
>>> please see comment inline:
>>>
>>> 2018-04-12 23:10 GMT+08:00 Pynbiang Hadem 
>>> :
>>>
 Hi Takeshi,

 I am following the below steps:
 1) sudo python as.py  ---> runs successfully
 2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new
 prompt but not sure if i am in a new separate namespace. Pls confirm if
 this is the correct way
 3) On a new terminal: sudo mininet/util m r2 ---> Gives me a new
 prompt but not sure if i am in a new separate namespace. Pls
 confirm if this is the correct way

>>>
>>> You can check if the ip address and routes is correct from shell
>>>
>>>
 4) I executed the following on the supposedly r1 and r2 terminals:
r1(supposedly): sudo ryu-manager
 ryu/services/protocols/bgp/application.py --bgp-app-config-file
 bgpconfig1.py
r2(supposedly): sudo ryu-manager
 ryu/services/protocols/bgp/application.py --bgp-app-config-file
 bgpconfig2.py

 However I am getting the following errors on both the supposedly r1
 and r2 terminal.
 ---
 Error creating socket: [Errno 98] Address already in use
 hub: uncaught exception: Traceback (most recent call last):
   File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py",
 line 59, in _launch
 return func(*args, **kwargs)
   File 
 "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/base.py",
 line 256, in start
 self._run(*args, **kwargs)
   File 
 "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/core.py",
 line 238, in _run
 server_thread.wait()
 AttributeError: 'NoneType' object has no attribute 'wait'
 -

>>>
>>>
>>> Have you shutdown Quagga daemon before you start Ryu?
>>>
>>>

 Pls Guide. Am i doing something wrongly?.
 I am also attaching the two config files( bgpconfig1.py &
 bgpconfig2.py)

 Thanks




 On Thu, Apr 12, 2018 at 2:22 PM, Yi Tseng 
 wrote:

> Hi,
>
> You need to write the configur

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-17 Thread Yi Tseng

I tested it with 16.04, but it should also works on 14.04

2018-04-18 0:34 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
> Will your topology work only in Ubuntu 16 or will it also work in Ubuntu
> 14 LTS?.
> Presently I'm using Ubuntu 14 LTS.
>
> Thanks
> Hadem
>
> On Tue 17 Apr, 2018, 12:20 PM Yi Tseng,  wrote:
>
>> Please use *killall* command to kill quagga daemon instead of using
>> *service* command
>>
>> 2018-04-13 22:31 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> I tried stopping quagga as below:
>>>
>>> *root@mininet-vm:~/ryu# sudo service quagga stop*
>>> *Stopping Quagga monitor daemon: (watchquagga).*
>>> *Stopping Quagga daemons (prio:0): (zebra) (bgpd) (ripd) (ripngd)
>>> (ospfd) (ospf6d) (isisd) (babeld).*
>>> *Removing all routes made by zebra.*
>>>
>>> However when i run the BGP application, i am still getting the same
>>> error as before.
>>>
>>> Thanks
>>> Hadem
>>>
>>>
>>>
>>> On Fri, Apr 13, 2018 at 5:38 PM, Yi Tseng  wrote:
>>>
 Yes,

 I think because Ryu and Quagga uses same port for bgp protocol

 2018-04-13 19:44 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> No, i have not shutdown Quagga daemon before starting Ryu. Do i need
> to stop it?.
>
> Thanks
> Hadem
>
> On Thu, Apr 12, 2018 at 9:35 PM, Yi Tseng  wrote:
>
>> Hi
>>
>> please see comment inline:
>>
>> 2018-04-12 23:10 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> I am following the below steps:
>>> 1) sudo python as.py  ---> runs successfully
>>> 2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new
>>> prompt but not sure if i am in a new separate namespace. Pls confirm if
>>> this is the correct way
>>> 3) On a new terminal: sudo mininet/util m r2 ---> Gives me a new
>>> prompt but not sure if i am in a new separate namespace. Pls
>>> confirm if this is the correct way
>>>
>>
>> You can check if the ip address and routes is correct from shell
>>
>>
>>> 4) I executed the following on the supposedly r1 and r2 terminals:
>>>r1(supposedly): sudo ryu-manager 
>>> ryu/services/protocols/bgp/application.py
>>> --bgp-app-config-file bgpconfig1.py
>>>r2(supposedly): sudo ryu-manager 
>>> ryu/services/protocols/bgp/application.py
>>> --bgp-app-config-file bgpconfig2.py
>>>
>>> However I am getting the following errors on both the supposedly r1
>>> and r2 terminal.
>>> ---
>>> Error creating socket: [Errno 98] Address already in use
>>> hub: uncaught exception: Traceback (most recent call last):
>>>   File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py",
>>> line 59, in _launch
>>> return func(*args, **kwargs)
>>>   File 
>>> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/base.py",
>>> line 256, in start
>>> self._run(*args, **kwargs)
>>>   File 
>>> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/core.py",
>>> line 238, in _run
>>> server_thread.wait()
>>> AttributeError: 'NoneType' object has no attribute 'wait'
>>> -
>>>
>>
>>
>> Have you shutdown Quagga daemon before you start Ryu?
>>
>>
>>>
>>> Pls Guide. Am i doing something wrongly?.
>>> I am also attaching the two config files( bgpconfig1.py &
>>> bgpconfig2.py)
>>>
>>> Thanks
>>>
>>>
>>>
>>>
>>> On Thu, Apr 12, 2018 at 2:22 PM, Yi Tseng 
>>> wrote:
>>>
 Hi,

 You need to write the configuration for your bgp routers, I think
 bgp_sample_conf.py includes everything you need, all you need is to 
 modify
 values in that configuration

 After that, you can run Ryu bgp application directly in two network
 namespace with two configuration.

 I never try Ryu BGP application before, for more information,
 please follow instruction here:
 https://ryu.readthedocs.io/en/latest/app/bgp_application.html

 Yi


 2018-04-11 21:46 GMT+08:00 Pynbiang Hadem >>> >:

> Hi Takeshi,
>
> I Think i have managed to enter the namespace of r1 using the* m
> command.*
> *Now, I have one more doubt;* How can we execute  ryu
> /ryu
> /services
> /protocols
> /
> bgp
> 
> /*application.py *in r1 and r2 and get communication between r1
> and r2 to happen?.
> Do we nee

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-17 Thread Pynbiang Hadem

Hi Takeshi,
Will your topology work only in Ubuntu 16 or will it also work in Ubuntu 14
LTS?.
Presently I'm using Ubuntu 14 LTS.

Thanks
Hadem

On Tue 17 Apr, 2018, 12:20 PM Yi Tseng,  wrote:

> Please use *killall* command to kill quagga daemon instead of using
> *service* command
>
> 2018-04-13 22:31 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> I tried stopping quagga as below:
>>
>> *root@mininet-vm:~/ryu# sudo service quagga stop*
>> *Stopping Quagga monitor daemon: (watchquagga).*
>> *Stopping Quagga daemons (prio:0): (zebra) (bgpd) (ripd) (ripngd) (ospfd)
>> (ospf6d) (isisd) (babeld).*
>> *Removing all routes made by zebra.*
>>
>> However when i run the BGP application, i am still getting the same error
>> as before.
>>
>> Thanks
>> Hadem
>>
>>
>>
>> On Fri, Apr 13, 2018 at 5:38 PM, Yi Tseng  wrote:
>>
>>> Yes,
>>>
>>> I think because Ryu and Quagga uses same port for bgp protocol
>>>
>>> 2018-04-13 19:44 GMT+08:00 Pynbiang Hadem :
>>>
 Hi Takeshi,

 No, i have not shutdown Quagga daemon before starting Ryu. Do i need to
 stop it?.

 Thanks
 Hadem

 On Thu, Apr 12, 2018 at 9:35 PM, Yi Tseng  wrote:

> Hi
>
> please see comment inline:
>
> 2018-04-12 23:10 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> I am following the below steps:
>> 1) sudo python as.py  ---> runs successfully
>> 2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new
>> prompt but not sure if i am in a new separate namespace. Pls confirm if
>> this is the correct way
>> 3) On a new terminal: sudo mininet/util m r2 ---> Gives me a new
>> prompt but not sure if i am in a new separate namespace. Pls confirm
>> if this is the correct way
>>
>
> You can check if the ip address and routes is correct from shell
>
>
>> 4) I executed the following on the supposedly r1 and r2 terminals:
>>r1(supposedly): sudo ryu-manager
>> ryu/services/protocols/bgp/application.py --bgp-app-config-file
>> bgpconfig1.py
>>r2(supposedly): sudo ryu-manager
>> ryu/services/protocols/bgp/application.py --bgp-app-config-file
>> bgpconfig2.py
>>
>> However I am getting the following errors on both the supposedly r1
>> and r2 terminal.
>> ---
>> Error creating socket: [Errno 98] Address already in use
>> hub: uncaught exception: Traceback (most recent call last):
>>   File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line
>> 59, in _launch
>> return func(*args, **kwargs)
>>   File
>> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/base.py",
>> line 256, in start
>> self._run(*args, **kwargs)
>>   File
>> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/core.py",
>> line 238, in _run
>> server_thread.wait()
>> AttributeError: 'NoneType' object has no attribute 'wait'
>> -
>>
>
>
> Have you shutdown Quagga daemon before you start Ryu?
>
>
>>
>> Pls Guide. Am i doing something wrongly?.
>> I am also attaching the two config files( bgpconfig1.py &
>> bgpconfig2.py)
>>
>> Thanks
>>
>>
>>
>>
>> On Thu, Apr 12, 2018 at 2:22 PM, Yi Tseng 
>> wrote:
>>
>>> Hi,
>>>
>>> You need to write the configuration for your bgp routers, I think
>>> bgp_sample_conf.py includes everything you need, all you need is to 
>>> modify
>>> values in that configuration
>>>
>>> After that, you can run Ryu bgp application directly in two network
>>> namespace with two configuration.
>>>
>>> I never try Ryu BGP application before, for more information, please
>>> follow instruction here:
>>> https://ryu.readthedocs.io/en/latest/app/bgp_application.html
>>>
>>> Yi
>>>
>>>
>>> 2018-04-11 21:46 GMT+08:00 Pynbiang Hadem 
>>> :
>>>
 Hi Takeshi,

 I Think i have managed to enter the namespace of r1 using the* m
 command.*
 *Now, I have one more doubt;* How can we execute  ryu
 /ryu
 /services
 /protocols
 /
 bgp
 
 /*application.py *in r1 and r2 and get communication between r1
 and r2 to happen?.
 Do we need the  ryu /ryu
 /services
 /protocols
 /
>>

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-16 Thread Yi Tseng

Please use *killall* command to kill quagga daemon instead of using
*service* command

2018-04-13 22:31 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> I tried stopping quagga as below:
>
> *root@mininet-vm:~/ryu# sudo service quagga stop*
> *Stopping Quagga monitor daemon: (watchquagga).*
> *Stopping Quagga daemons (prio:0): (zebra) (bgpd) (ripd) (ripngd) (ospfd)
> (ospf6d) (isisd) (babeld).*
> *Removing all routes made by zebra.*
>
> However when i run the BGP application, i am still getting the same error
> as before.
>
> Thanks
> Hadem
>
>
>
> On Fri, Apr 13, 2018 at 5:38 PM, Yi Tseng  wrote:
>
>> Yes,
>>
>> I think because Ryu and Quagga uses same port for bgp protocol
>>
>> 2018-04-13 19:44 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> No, i have not shutdown Quagga daemon before starting Ryu. Do i need to
>>> stop it?.
>>>
>>> Thanks
>>> Hadem
>>>
>>> On Thu, Apr 12, 2018 at 9:35 PM, Yi Tseng  wrote:
>>>
 Hi

 please see comment inline:

 2018-04-12 23:10 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> I am following the below steps:
> 1) sudo python as.py  ---> runs successfully
> 2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new
> prompt but not sure if i am in a new separate namespace. Pls confirm if
> this is the correct way
> 3) On a new terminal: sudo mininet/util m r2 ---> Gives me a new
> prompt but not sure if i am in a new separate namespace. Pls confirm
> if this is the correct way
>

 You can check if the ip address and routes is correct from shell


> 4) I executed the following on the supposedly r1 and r2 terminals:
>r1(supposedly): sudo ryu-manager 
> ryu/services/protocols/bgp/application.py
> --bgp-app-config-file bgpconfig1.py
>r2(supposedly): sudo ryu-manager 
> ryu/services/protocols/bgp/application.py
> --bgp-app-config-file bgpconfig2.py
>
> However I am getting the following errors on both the supposedly r1
> and r2 terminal.
> ---
> Error creating socket: [Errno 98] Address already in use
> hub: uncaught exception: Traceback (most recent call last):
>   File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line
> 59, in _launch
> return func(*args, **kwargs)
>   File 
> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/base.py",
> line 256, in start
> self._run(*args, **kwargs)
>   File 
> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/core.py",
> line 238, in _run
> server_thread.wait()
> AttributeError: 'NoneType' object has no attribute 'wait'
> -
>


 Have you shutdown Quagga daemon before you start Ryu?


>
> Pls Guide. Am i doing something wrongly?.
> I am also attaching the two config files( bgpconfig1.py &
> bgpconfig2.py)
>
> Thanks
>
>
>
>
> On Thu, Apr 12, 2018 at 2:22 PM, Yi Tseng  wrote:
>
>> Hi,
>>
>> You need to write the configuration for your bgp routers, I think
>> bgp_sample_conf.py includes everything you need, all you need is to 
>> modify
>> values in that configuration
>>
>> After that, you can run Ryu bgp application directly in two network
>> namespace with two configuration.
>>
>> I never try Ryu BGP application before, for more information, please
>> follow instruction here:
>> https://ryu.readthedocs.io/en/latest/app/bgp_application.html
>>
>> Yi
>>
>>
>> 2018-04-11 21:46 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> I Think i have managed to enter the namespace of r1 using the* m
>>> command.*
>>> *Now, I have one more doubt;* How can we execute  ryu
>>> /ryu
>>> /services
>>> /protocols
>>> /bgp
>>> 
>>> /*application.py *in r1 and r2 and get communication between r1 and
>>> r2 to happen?.
>>> Do we need the  ryu /ryu
>>> /services
>>> /protocols
>>> /bgp
>>> 
>>> /*bgp_sample_conf.py *or the configuration done on r1 and r2 by
>>> your script is sufficient?.
>>>
>>> Thanks
>>> Hadem
>>>
>>> On Wed, Apr 11, 2018 at 6:32 PM, Pynbiang Hadem <
>>> pynbiang.ha...@gmail.com> wrote:
>>>
 Hi Takeshi,

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-13 Thread Pynbiang Hadem

Hi Takeshi,

I tried stopping quagga as below:

*root@mininet-vm:~/ryu# sudo service quagga stop*
*Stopping Quagga monitor daemon: (watchquagga).*
*Stopping Quagga daemons (prio:0): (zebra) (bgpd) (ripd) (ripngd) (ospfd)
(ospf6d) (isisd) (babeld).*
*Removing all routes made by zebra.*

However when i run the BGP application, i am still getting the same error
as before.

Thanks
Hadem



On Fri, Apr 13, 2018 at 5:38 PM, Yi Tseng  wrote:

> Yes,
>
> I think because Ryu and Quagga uses same port for bgp protocol
>
> 2018-04-13 19:44 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> No, i have not shutdown Quagga daemon before starting Ryu. Do i need to
>> stop it?.
>>
>> Thanks
>> Hadem
>>
>> On Thu, Apr 12, 2018 at 9:35 PM, Yi Tseng  wrote:
>>
>>> Hi
>>>
>>> please see comment inline:
>>>
>>> 2018-04-12 23:10 GMT+08:00 Pynbiang Hadem :
>>>
 Hi Takeshi,

 I am following the below steps:
 1) sudo python as.py  ---> runs successfully
 2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new prompt
 but not sure if i am in a new separate namespace. Pls confirm if this is
 the correct way
 3) On a new terminal: sudo mininet/util m r2 ---> Gives me a new
 prompt but not sure if i am in a new separate namespace. Pls confirm
 if this is the correct way

>>>
>>> You can check if the ip address and routes is correct from shell
>>>
>>>
 4) I executed the following on the supposedly r1 and r2 terminals:
r1(supposedly): sudo ryu-manager 
 ryu/services/protocols/bgp/application.py
 --bgp-app-config-file bgpconfig1.py
r2(supposedly): sudo ryu-manager 
 ryu/services/protocols/bgp/application.py
 --bgp-app-config-file bgpconfig2.py

 However I am getting the following errors on both the supposedly r1 and
 r2 terminal.
 ---
 Error creating socket: [Errno 98] Address already in use
 hub: uncaught exception: Traceback (most recent call last):
   File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line
 59, in _launch
 return func(*args, **kwargs)
   File 
 "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/base.py",
 line 256, in start
 self._run(*args, **kwargs)
   File 
 "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/core.py",
 line 238, in _run
 server_thread.wait()
 AttributeError: 'NoneType' object has no attribute 'wait'
 -

>>>
>>>
>>> Have you shutdown Quagga daemon before you start Ryu?
>>>
>>>

 Pls Guide. Am i doing something wrongly?.
 I am also attaching the two config files( bgpconfig1.py &
 bgpconfig2.py)

 Thanks




 On Thu, Apr 12, 2018 at 2:22 PM, Yi Tseng  wrote:

> Hi,
>
> You need to write the configuration for your bgp routers, I think
> bgp_sample_conf.py includes everything you need, all you need is to modify
> values in that configuration
>
> After that, you can run Ryu bgp application directly in two network
> namespace with two configuration.
>
> I never try Ryu BGP application before, for more information, please
> follow instruction here:
> https://ryu.readthedocs.io/en/latest/app/bgp_application.html
>
> Yi
>
>
> 2018-04-11 21:46 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> I Think i have managed to enter the namespace of r1 using the* m
>> command.*
>> *Now, I have one more doubt;* How can we execute  ryu
>> /ryu
>> /services
>> /protocols
>> /bgp
>> /*application.py
>> *in r1 and r2 and get communication between r1 and r2 to happen?.
>> Do we need the  ryu /ryu
>> /services
>> /protocols
>> /bgp
>> /*bgp_sample_conf.py
>> *or the configuration done on r1 and r2 by your script is
>> sufficient?.
>>
>> Thanks
>> Hadem
>>
>> On Wed, Apr 11, 2018 at 6:32 PM, Pynbiang Hadem <
>> pynbiang.ha...@gmail.com> wrote:
>>
>>> Hi Takeshi,
>>>
>>> Would you mind showing some example to enter the namespace of r1. I
>>> can't seemed to figure it out.
>>>
>>> Thanks
>>> Hadem
>>>
>>> On Fri, Mar 16, 2018 at 1:15 PM, Yi Tseng 
>>> wrote:
>>>
 1)
 Yes, this is normal
 2)
 You nee

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-13 Thread Yi Tseng

Yes,

I think because Ryu and Quagga uses same port for bgp protocol

2018-04-13 19:44 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> No, i have not shutdown Quagga daemon before starting Ryu. Do i need to
> stop it?.
>
> Thanks
> Hadem
>
> On Thu, Apr 12, 2018 at 9:35 PM, Yi Tseng  wrote:
>
>> Hi
>>
>> please see comment inline:
>>
>> 2018-04-12 23:10 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> I am following the below steps:
>>> 1) sudo python as.py  ---> runs successfully
>>> 2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new prompt
>>> but not sure if i am in a new separate namespace. Pls confirm if this is
>>> the correct way
>>> 3) On a new terminal: sudo mininet/util m r2 ---> Gives me a new prompt
>>> but not sure if i am in a new separate namespace. Pls confirm if this
>>> is the correct way
>>>
>>
>> You can check if the ip address and routes is correct from shell
>>
>>
>>> 4) I executed the following on the supposedly r1 and r2 terminals:
>>>r1(supposedly): sudo ryu-manager 
>>> ryu/services/protocols/bgp/application.py
>>> --bgp-app-config-file bgpconfig1.py
>>>r2(supposedly): sudo ryu-manager 
>>> ryu/services/protocols/bgp/application.py
>>> --bgp-app-config-file bgpconfig2.py
>>>
>>> However I am getting the following errors on both the supposedly r1 and
>>> r2 terminal.
>>> ---
>>> Error creating socket: [Errno 98] Address already in use
>>> hub: uncaught exception: Traceback (most recent call last):
>>>   File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line
>>> 59, in _launch
>>> return func(*args, **kwargs)
>>>   File 
>>> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/base.py",
>>> line 256, in start
>>> self._run(*args, **kwargs)
>>>   File 
>>> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/core.py",
>>> line 238, in _run
>>> server_thread.wait()
>>> AttributeError: 'NoneType' object has no attribute 'wait'
>>> -
>>>
>>
>>
>> Have you shutdown Quagga daemon before you start Ryu?
>>
>>
>>>
>>> Pls Guide. Am i doing something wrongly?.
>>> I am also attaching the two config files( bgpconfig1.py &
>>> bgpconfig2.py)
>>>
>>> Thanks
>>>
>>>
>>>
>>>
>>> On Thu, Apr 12, 2018 at 2:22 PM, Yi Tseng  wrote:
>>>
 Hi,

 You need to write the configuration for your bgp routers, I think
 bgp_sample_conf.py includes everything you need, all you need is to modify
 values in that configuration

 After that, you can run Ryu bgp application directly in two network
 namespace with two configuration.

 I never try Ryu BGP application before, for more information, please
 follow instruction here:
 https://ryu.readthedocs.io/en/latest/app/bgp_application.html

 Yi


 2018-04-11 21:46 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> I Think i have managed to enter the namespace of r1 using the* m
> command.*
> *Now, I have one more doubt;* How can we execute  ryu
> /ryu
> /services
> /protocols
> /bgp
> /*application.py
> *in r1 and r2 and get communication between r1 and r2 to happen?.
> Do we need the  ryu /ryu
> /services
> /protocols
> /bgp
> /*bgp_sample_conf.py
> *or the configuration done on r1 and r2 by your script is sufficient?.
>
> Thanks
> Hadem
>
> On Wed, Apr 11, 2018 at 6:32 PM, Pynbiang Hadem <
> pynbiang.ha...@gmail.com> wrote:
>
>> Hi Takeshi,
>>
>> Would you mind showing some example to enter the namespace of r1. I
>> can't seemed to figure it out.
>>
>> Thanks
>> Hadem
>>
>> On Fri, Mar 16, 2018 at 1:15 PM, Yi Tseng 
>> wrote:
>>
>>> 1)
>>> Yes, this is normal
>>> 2)
>>> You need to enter network namespace of r1, and use telnet to access
>>> quagga console
>>>
>>> To enter the namespace, you can use *m* command
>>> https://github.com/mininet/mininet/blob/master/util/m
>>>
>>> 2018-03-16 0:20 GMT+08:00 Pynbiang Hadem :
>>>
 Hi Takeshi,

 I am able to run it now, however, there are two things:
 *1) I am getting errRun mesages as below:*
 -

 mininet@mininet-vm:~/bgp-3as$ sudo python as.py
 *** errRun: ['grep', '-c', 'processor', '/proc/cpu

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-13 Thread Pynbiang Hadem

Hi Takeshi,

No, i have not shutdown Quagga daemon before starting Ryu. Do i need to
stop it?.

Thanks
Hadem

On Thu, Apr 12, 2018 at 9:35 PM, Yi Tseng  wrote:

> Hi
>
> please see comment inline:
>
> 2018-04-12 23:10 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> I am following the below steps:
>> 1) sudo python as.py  ---> runs successfully
>> 2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new prompt
>> but not sure if i am in a new separate namespace. Pls confirm if this is
>> the correct way
>> 3) On a new terminal: sudo mininet/util m r2 ---> Gives me a new prompt
>> but not sure if i am in a new separate namespace. Pls confirm if this is
>> the correct way
>>
>
> You can check if the ip address and routes is correct from shell
>
>
>> 4) I executed the following on the supposedly r1 and r2 terminals:
>>r1(supposedly): sudo ryu-manager 
>> ryu/services/protocols/bgp/application.py
>> --bgp-app-config-file bgpconfig1.py
>>r2(supposedly): sudo ryu-manager 
>> ryu/services/protocols/bgp/application.py
>> --bgp-app-config-file bgpconfig2.py
>>
>> However I am getting the following errors on both the supposedly r1 and
>> r2 terminal.
>> ---
>> Error creating socket: [Errno 98] Address already in use
>> hub: uncaught exception: Traceback (most recent call last):
>>   File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line 59,
>> in _launch
>> return func(*args, **kwargs)
>>   File 
>> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/base.py",
>> line 256, in start
>> self._run(*args, **kwargs)
>>   File 
>> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/core.py",
>> line 238, in _run
>> server_thread.wait()
>> AttributeError: 'NoneType' object has no attribute 'wait'
>> -
>>
>
>
> Have you shutdown Quagga daemon before you start Ryu?
>
>
>>
>> Pls Guide. Am i doing something wrongly?.
>> I am also attaching the two config files( bgpconfig1.py &  bgpconfig2.py)
>>
>> Thanks
>>
>>
>>
>>
>> On Thu, Apr 12, 2018 at 2:22 PM, Yi Tseng  wrote:
>>
>>> Hi,
>>>
>>> You need to write the configuration for your bgp routers, I think
>>> bgp_sample_conf.py includes everything you need, all you need is to modify
>>> values in that configuration
>>>
>>> After that, you can run Ryu bgp application directly in two network
>>> namespace with two configuration.
>>>
>>> I never try Ryu BGP application before, for more information, please
>>> follow instruction here:
>>> https://ryu.readthedocs.io/en/latest/app/bgp_application.html
>>>
>>> Yi
>>>
>>>
>>> 2018-04-11 21:46 GMT+08:00 Pynbiang Hadem :
>>>
 Hi Takeshi,

 I Think i have managed to enter the namespace of r1 using the* m
 command.*
 *Now, I have one more doubt;* How can we execute  ryu
 /ryu
 /services
 /protocols
 /bgp
 /*application.py
 *in r1 and r2 and get communication between r1 and r2 to happen?.
 Do we need the  ryu /ryu
 /services
 /protocols
 /bgp
 /*bgp_sample_conf.py
 *or the configuration done on r1 and r2 by your script is sufficient?.

 Thanks
 Hadem

 On Wed, Apr 11, 2018 at 6:32 PM, Pynbiang Hadem <
 pynbiang.ha...@gmail.com> wrote:

> Hi Takeshi,
>
> Would you mind showing some example to enter the namespace of r1. I
> can't seemed to figure it out.
>
> Thanks
> Hadem
>
> On Fri, Mar 16, 2018 at 1:15 PM, Yi Tseng  wrote:
>
>> 1)
>> Yes, this is normal
>> 2)
>> You need to enter network namespace of r1, and use telnet to access
>> quagga console
>>
>> To enter the namespace, you can use *m* command
>> https://github.com/mininet/mininet/blob/master/util/m
>>
>> 2018-03-16 0:20 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> I am able to run it now, however, there are two things:
>>> *1) I am getting errRun mesages as below:*
>>> -
>>>
>>> mininet@mininet-vm:~/bgp-3as$ sudo python as.py
>>> *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
>>> 1
>>>   0*** Setting resource limits
>>> *** errRun: ['which', 'mnexec']
>>> /usr/bin/mnexec
>>>   0*** errRun: ['which', 'ifconfig']
>>> /sbin/ifconfig
>>> ...
>>> ...
>>> *** errRun: ['stty', 'echo', 'sane', 'intr', '^C']
>

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-12 Thread Yi Tseng

Hi

please see comment inline:

2018-04-12 23:10 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> I am following the below steps:
> 1) sudo python as.py  ---> runs successfully
> 2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new prompt
> but not sure if i am in a new separate namespace. Pls confirm if this is
> the correct way
> 3) On a new terminal: sudo mininet/util m r2 ---> Gives me a new prompt
> but not sure if i am in a new separate namespace. Pls confirm if this is
> the correct way
>

You can check if the ip address and routes is correct from shell


> 4) I executed the following on the supposedly r1 and r2 terminals:
>r1(supposedly): sudo ryu-manager 
> ryu/services/protocols/bgp/application.py
> --bgp-app-config-file bgpconfig1.py
>r2(supposedly): sudo ryu-manager 
> ryu/services/protocols/bgp/application.py
> --bgp-app-config-file bgpconfig2.py
>
> However I am getting the following errors on both the supposedly r1 and r2
> terminal.
> ---
> Error creating socket: [Errno 98] Address already in use
> hub: uncaught exception: Traceback (most recent call last):
>   File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line 59,
> in _launch
> return func(*args, **kwargs)
>   File 
> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/base.py",
> line 256, in start
> self._run(*args, **kwargs)
>   File 
> "/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/core.py",
> line 238, in _run
> server_thread.wait()
> AttributeError: 'NoneType' object has no attribute 'wait'
> -
>


Have you shutdown Quagga daemon before you start Ryu?


>
> Pls Guide. Am i doing something wrongly?.
> I am also attaching the two config files( bgpconfig1.py &  bgpconfig2.py)
>
> Thanks
>
>
>
>
> On Thu, Apr 12, 2018 at 2:22 PM, Yi Tseng  wrote:
>
>> Hi,
>>
>> You need to write the configuration for your bgp routers, I think
>> bgp_sample_conf.py includes everything you need, all you need is to modify
>> values in that configuration
>>
>> After that, you can run Ryu bgp application directly in two network
>> namespace with two configuration.
>>
>> I never try Ryu BGP application before, for more information, please
>> follow instruction here:
>> https://ryu.readthedocs.io/en/latest/app/bgp_application.html
>>
>> Yi
>>
>>
>> 2018-04-11 21:46 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> I Think i have managed to enter the namespace of r1 using the* m
>>> command.*
>>> *Now, I have one more doubt;* How can we execute  ryu
>>> /ryu
>>> /services
>>> /protocols
>>> /bgp
>>> /*application.py
>>> *in r1 and r2 and get communication between r1 and r2 to happen?.
>>> Do we need the  ryu /ryu
>>> /services
>>> /protocols
>>> /bgp
>>> /*bgp_sample_conf.py
>>> *or the configuration done on r1 and r2 by your script is sufficient?.
>>>
>>> Thanks
>>> Hadem
>>>
>>> On Wed, Apr 11, 2018 at 6:32 PM, Pynbiang Hadem <
>>> pynbiang.ha...@gmail.com> wrote:
>>>
 Hi Takeshi,

 Would you mind showing some example to enter the namespace of r1. I
 can't seemed to figure it out.

 Thanks
 Hadem

 On Fri, Mar 16, 2018 at 1:15 PM, Yi Tseng  wrote:

> 1)
> Yes, this is normal
> 2)
> You need to enter network namespace of r1, and use telnet to access
> quagga console
>
> To enter the namespace, you can use *m* command
> https://github.com/mininet/mininet/blob/master/util/m
>
> 2018-03-16 0:20 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> I am able to run it now, however, there are two things:
>> *1) I am getting errRun mesages as below:*
>> -
>>
>> mininet@mininet-vm:~/bgp-3as$ sudo python as.py
>> *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
>> 1
>>   0*** Setting resource limits
>> *** errRun: ['which', 'mnexec']
>> /usr/bin/mnexec
>>   0*** errRun: ['which', 'ifconfig']
>> /sbin/ifconfig
>> ...
>> ...
>> *** errRun: ['stty', 'echo', 'sane', 'intr', '^C']
>>   0mininet>
>>
>> --
>>   *Is this normal?.*
>>
>> *2) How can i login to r1 console?. I want to run some bgpd command
>> like*
>>  * bgpd-R1# sh ip bgp*
>>
>> Thanks
>> Hadem
>>
>>
>> On Tue, Mar 13, 2018 at 10:07 PM, Y

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-12 Thread Pynbiang Hadem

Hi Takeshi,

I am following the below steps:
1) sudo python as.py  ---> runs successfully
2) On a new terminal: sudo mininet/util m r1 ---> Gives me a new prompt but
not sure if i am in a new separate namespace. Pls confirm if this is the
correct way
3) On a new terminal: sudo mininet/util m r2 ---> Gives me a new prompt but
not sure if i am in a new separate namespace. Pls confirm if this is the
correct way
4) I executed the following on the supposedly r1 and r2 terminals:
   r1(supposedly): sudo ryu-manager
ryu/services/protocols/bgp/application.py --bgp-app-config-file
bgpconfig1.py
   r2(supposedly): sudo ryu-manager
ryu/services/protocols/bgp/application.py --bgp-app-config-file
bgpconfig2.py

However I am getting the following errors on both the supposedly r1 and r2
terminal.
---
Error creating socket: [Errno 98] Address already in use
hub: uncaught exception: Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/ryu/lib/hub.py", line 59, in
_launch
return func(*args, **kwargs)
  File
"/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/base.py",
line 256, in start
self._run(*args, **kwargs)
  File
"/usr/local/lib/python2.7/dist-packages/ryu/services/protocols/bgp/core.py",
line 238, in _run
server_thread.wait()
AttributeError: 'NoneType' object has no attribute 'wait'
-

Pls Guide. Am i doing something wrongly?.
I am also attaching the two config files( bgpconfig1.py &  bgpconfig2.py)

Thanks




On Thu, Apr 12, 2018 at 2:22 PM, Yi Tseng  wrote:

> Hi,
>
> You need to write the configuration for your bgp routers, I think
> bgp_sample_conf.py includes everything you need, all you need is to modify
> values in that configuration
>
> After that, you can run Ryu bgp application directly in two network
> namespace with two configuration.
>
> I never try Ryu BGP application before, for more information, please
> follow instruction here:
> https://ryu.readthedocs.io/en/latest/app/bgp_application.html
>
> Yi
>
>
> 2018-04-11 21:46 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> I Think i have managed to enter the namespace of r1 using the* m
>> command.*
>> *Now, I have one more doubt;* How can we execute  ryu
>> /ryu
>> /services
>> /protocols
>> /bgp
>> /*application.py
>> *in r1 and r2 and get communication between r1 and r2 to happen?.
>> Do we need the  ryu /ryu
>> /services
>> /protocols
>> /bgp
>> /*bgp_sample_conf.py
>> *or the configuration done on r1 and r2 by your script is sufficient?.
>>
>> Thanks
>> Hadem
>>
>> On Wed, Apr 11, 2018 at 6:32 PM, Pynbiang Hadem > > wrote:
>>
>>> Hi Takeshi,
>>>
>>> Would you mind showing some example to enter the namespace of r1. I
>>> can't seemed to figure it out.
>>>
>>> Thanks
>>> Hadem
>>>
>>> On Fri, Mar 16, 2018 at 1:15 PM, Yi Tseng  wrote:
>>>
 1)
 Yes, this is normal
 2)
 You need to enter network namespace of r1, and use telnet to access
 quagga console

 To enter the namespace, you can use *m* command
 https://github.com/mininet/mininet/blob/master/util/m

 2018-03-16 0:20 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> I am able to run it now, however, there are two things:
> *1) I am getting errRun mesages as below:*
> -
>
> mininet@mininet-vm:~/bgp-3as$ sudo python as.py
> *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
> 1
>   0*** Setting resource limits
> *** errRun: ['which', 'mnexec']
> /usr/bin/mnexec
>   0*** errRun: ['which', 'ifconfig']
> /sbin/ifconfig
> ...
> ...
> *** errRun: ['stty', 'echo', 'sane', 'intr', '^C']
>   0mininet>
>
> --
>   *Is this normal?.*
>
> *2) How can i login to r1 console?. I want to run some bgpd command
> like*
>  * bgpd-R1# sh ip bgp*
>
> Thanks
> Hadem
>
>
> On Tue, Mar 13, 2018 at 10:07 PM, Yi Tseng 
> wrote:
>
>> Hi,
>>
>> Please don't drop mailing list
>>
>> I just update it, please check again
>>
>> Yi
>>
>> 2018-03-13 18:19 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> I run the topology file *as.py* from *bgp-3as* and i got the
>>> following error messages. Pls help
>>>
>>> mininet@mininet-vm:~/bgp-3as$ sudo python as

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-12 Thread Yi Tseng

Hi,

You need to write the configuration for your bgp routers, I think
bgp_sample_conf.py includes everything you need, all you need is to modify
values in that configuration

After that, you can run Ryu bgp application directly in two network
namespace with two configuration.

I never try Ryu BGP application before, for more information, please follow
instruction here:
https://ryu.readthedocs.io/en/latest/app/bgp_application.html

Yi


2018-04-11 21:46 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> I Think i have managed to enter the namespace of r1 using the* m command.*
>
> *Now, I have one more doubt;* How can we execute  ryu
> /ryu
> /services
> /protocols
> /bgp
> /*application.py
> *in r1 and r2 and get communication between r1 and r2 to happen?.
> Do we need the  ryu /ryu
> /services
> /protocols
> /bgp
> /*bgp_sample_conf.py
> *or the configuration done on r1 and r2 by your script is sufficient?.
>
> Thanks
> Hadem
>
> On Wed, Apr 11, 2018 at 6:32 PM, Pynbiang Hadem 
> wrote:
>
>> Hi Takeshi,
>>
>> Would you mind showing some example to enter the namespace of r1. I can't
>> seemed to figure it out.
>>
>> Thanks
>> Hadem
>>
>> On Fri, Mar 16, 2018 at 1:15 PM, Yi Tseng  wrote:
>>
>>> 1)
>>> Yes, this is normal
>>> 2)
>>> You need to enter network namespace of r1, and use telnet to access
>>> quagga console
>>>
>>> To enter the namespace, you can use *m* command
>>> https://github.com/mininet/mininet/blob/master/util/m
>>>
>>> 2018-03-16 0:20 GMT+08:00 Pynbiang Hadem :
>>>
 Hi Takeshi,

 I am able to run it now, however, there are two things:
 *1) I am getting errRun mesages as below:*
 -

 mininet@mininet-vm:~/bgp-3as$ sudo python as.py
 *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
 1
   0*** Setting resource limits
 *** errRun: ['which', 'mnexec']
 /usr/bin/mnexec
   0*** errRun: ['which', 'ifconfig']
 /sbin/ifconfig
 ...
 ...
 *** errRun: ['stty', 'echo', 'sane', 'intr', '^C']
   0mininet>

 --
   *Is this normal?.*

 *2) How can i login to r1 console?. I want to run some bgpd command
 like*
  * bgpd-R1# sh ip bgp*

 Thanks
 Hadem


 On Tue, Mar 13, 2018 at 10:07 PM, Yi Tseng  wrote:

> Hi,
>
> Please don't drop mailing list
>
> I just update it, please check again
>
> Yi
>
> 2018-03-13 18:19 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> I run the topology file *as.py* from *bgp-3as* and i got the
>> following error messages. Pls help
>>
>> mininet@mininet-vm:~/bgp-3as$ sudo python as.py
>> *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
>> 1
>>   0*** Setting resource limits
>> *** errRun: ['which', 'mnexec']
>> /usr/bin/mnexec
>>   0*** errRun: ['which', 'ifconfig']
>> /sbin/ifconfig
>>   0*** h1 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** h2 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** h3 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** r1 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** r2 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** r3 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** r1 : ('ip link add name r1-eth0 address e6:07:c4:3d:f1:ad type
>> veth peer name r2-eth0 address 62:7d:bb:f1:1b:0b netns 1545',)
>>
>> added intf r1-eth0 (0) to node r1
>> moving r1-eth0 into namespace for r1
>> *** r1 : ('ifconfig', 'r1-eth0', 'up')
>>
>> added intf r2-eth0 (0) to node r2
>> moving r2-eth0 into namespace for r2
>> *** r2 : ('ifconfig', 'r2-eth0', 'up')
>> *** r2 : ('ip link add name r2-eth1 address a6:4f:64:39:2b:af type
>> veth peer name r3-eth0 address a2:49:d6:30:b2:d8 netns 1547',)
>>
>> added intf r2-eth1 (1) to node r2
>> moving r2-eth1 into namespace for r2
>> *** r2 : ('ifconfig', 'r2-eth1', 'up')
>>
>> added intf r3-eth0 (0) to node r3
>> moving r3-eth0 into namespace for r3
>> *** r3 : ('ifconfig', 'r3-eth0', 'up')
>> *** h1 : ('ip link add name h1-eth0 address 1e:d7:9d:cf:13:61 type
>> veth peer name r1

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-11 Thread Pynbiang Hadem

Hi Takeshi,

I Think i have managed to enter the namespace of r1 using the* m command.*
*Now, I have one more doubt;* How can we execute  ryu
/ryu
/services
/protocols
/bgp
/*application.py
*in r1 and r2 and get communication between r1 and r2 to happen?.
Do we need the  ryu /ryu
/services
/protocols
/bgp
/*bgp_sample_conf.py
*or the configuration done on r1 and r2 by your script is sufficient?.

Thanks
Hadem

On Wed, Apr 11, 2018 at 6:32 PM, Pynbiang Hadem 
wrote:

> Hi Takeshi,
>
> Would you mind showing some example to enter the namespace of r1. I can't
> seemed to figure it out.
>
> Thanks
> Hadem
>
> On Fri, Mar 16, 2018 at 1:15 PM, Yi Tseng  wrote:
>
>> 1)
>> Yes, this is normal
>> 2)
>> You need to enter network namespace of r1, and use telnet to access
>> quagga console
>>
>> To enter the namespace, you can use *m* command
>> https://github.com/mininet/mininet/blob/master/util/m
>>
>> 2018-03-16 0:20 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> I am able to run it now, however, there are two things:
>>> *1) I am getting errRun mesages as below:*
>>> -
>>>
>>> mininet@mininet-vm:~/bgp-3as$ sudo python as.py
>>> *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
>>> 1
>>>   0*** Setting resource limits
>>> *** errRun: ['which', 'mnexec']
>>> /usr/bin/mnexec
>>>   0*** errRun: ['which', 'ifconfig']
>>> /sbin/ifconfig
>>> ...
>>> ...
>>> *** errRun: ['stty', 'echo', 'sane', 'intr', '^C']
>>>   0mininet>
>>>
>>> --
>>>   *Is this normal?.*
>>>
>>> *2) How can i login to r1 console?. I want to run some bgpd command like*
>>>  * bgpd-R1# sh ip bgp*
>>>
>>> Thanks
>>> Hadem
>>>
>>>
>>> On Tue, Mar 13, 2018 at 10:07 PM, Yi Tseng  wrote:
>>>
 Hi,

 Please don't drop mailing list

 I just update it, please check again

 Yi

 2018-03-13 18:19 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> I run the topology file *as.py* from *bgp-3as* and i got the
> following error messages. Pls help
>
> mininet@mininet-vm:~/bgp-3as$ sudo python as.py
> *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
> 1
>   0*** Setting resource limits
> *** errRun: ['which', 'mnexec']
> /usr/bin/mnexec
>   0*** errRun: ['which', 'ifconfig']
> /sbin/ifconfig
>   0*** h1 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** h2 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** h3 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** r1 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** r2 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** r3 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** r1 : ('ip link add name r1-eth0 address e6:07:c4:3d:f1:ad type
> veth peer name r2-eth0 address 62:7d:bb:f1:1b:0b netns 1545',)
>
> added intf r1-eth0 (0) to node r1
> moving r1-eth0 into namespace for r1
> *** r1 : ('ifconfig', 'r1-eth0', 'up')
>
> added intf r2-eth0 (0) to node r2
> moving r2-eth0 into namespace for r2
> *** r2 : ('ifconfig', 'r2-eth0', 'up')
> *** r2 : ('ip link add name r2-eth1 address a6:4f:64:39:2b:af type
> veth peer name r3-eth0 address a2:49:d6:30:b2:d8 netns 1547',)
>
> added intf r2-eth1 (1) to node r2
> moving r2-eth1 into namespace for r2
> *** r2 : ('ifconfig', 'r2-eth1', 'up')
>
> added intf r3-eth0 (0) to node r3
> moving r3-eth0 into namespace for r3
> *** r3 : ('ifconfig', 'r3-eth0', 'up')
> *** h1 : ('ip link add name h1-eth0 address 1e:d7:9d:cf:13:61 type
> veth peer name r1-eth1 address 22:e8:9b:a9:38:85 netns 1543',)
>
> added intf h1-eth0 (0) to node h1
> moving h1-eth0 into namespace for h1
> *** h1 : ('ifconfig', 'h1-eth0', 'up')
>
> added intf r1-eth1 (1) to node r1
> moving r1-eth1 into namespace for r1
> *** r1 : ('ifconfig', 'r1-eth1', 'up')
> *** h2 : ('ip link add name h2-eth0 address fe:c0:a8:2d:37:ab type
> veth peer name r2-eth2 address c6:20:a0:db:c1:cb netns 1545',)
>
> added intf h2-eth0 (0) to node h2
> moving h2-eth0 into namespace for h2
> *** h2 : ('ifconfig', 'h2-eth0', 'up')
>
> added intf r2-eth2 (2) to node r2
> mo

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-04-11 Thread Pynbiang Hadem

Hi Takeshi,

Would you mind showing some example to enter the namespace of r1. I can't
seemed to figure it out.

Thanks
Hadem

On Fri, Mar 16, 2018 at 1:15 PM, Yi Tseng  wrote:

> 1)
> Yes, this is normal
> 2)
> You need to enter network namespace of r1, and use telnet to access quagga
> console
>
> To enter the namespace, you can use *m* command
> https://github.com/mininet/mininet/blob/master/util/m
>
> 2018-03-16 0:20 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> I am able to run it now, however, there are two things:
>> *1) I am getting errRun mesages as below:*
>> -
>>
>> mininet@mininet-vm:~/bgp-3as$ sudo python as.py
>> *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
>> 1
>>   0*** Setting resource limits
>> *** errRun: ['which', 'mnexec']
>> /usr/bin/mnexec
>>   0*** errRun: ['which', 'ifconfig']
>> /sbin/ifconfig
>> ...
>> ...
>> *** errRun: ['stty', 'echo', 'sane', 'intr', '^C']
>>   0mininet>
>>
>> --
>>   *Is this normal?.*
>>
>> *2) How can i login to r1 console?. I want to run some bgpd command like*
>>  * bgpd-R1# sh ip bgp*
>>
>> Thanks
>> Hadem
>>
>>
>> On Tue, Mar 13, 2018 at 10:07 PM, Yi Tseng  wrote:
>>
>>> Hi,
>>>
>>> Please don't drop mailing list
>>>
>>> I just update it, please check again
>>>
>>> Yi
>>>
>>> 2018-03-13 18:19 GMT+08:00 Pynbiang Hadem :
>>>
 Hi Takeshi,

 I run the topology file *as.py* from *bgp-3as* and i got the following
 error messages. Pls help

 mininet@mininet-vm:~/bgp-3as$ sudo python as.py
 *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
 1
   0*** Setting resource limits
 *** errRun: ['which', 'mnexec']
 /usr/bin/mnexec
   0*** errRun: ['which', 'ifconfig']
 /sbin/ifconfig
   0*** h1 : ('unset HISTFILE; stty -echo; set +m',)
 unset HISTFILE; stty -echo; set +m
 *** h2 : ('unset HISTFILE; stty -echo; set +m',)
 unset HISTFILE; stty -echo; set +m
 *** h3 : ('unset HISTFILE; stty -echo; set +m',)
 unset HISTFILE; stty -echo; set +m
 *** r1 : ('unset HISTFILE; stty -echo; set +m',)
 unset HISTFILE; stty -echo; set +m
 *** r2 : ('unset HISTFILE; stty -echo; set +m',)
 unset HISTFILE; stty -echo; set +m
 *** r3 : ('unset HISTFILE; stty -echo; set +m',)
 unset HISTFILE; stty -echo; set +m
 *** r1 : ('ip link add name r1-eth0 address e6:07:c4:3d:f1:ad type veth
 peer name r2-eth0 address 62:7d:bb:f1:1b:0b netns 1545',)

 added intf r1-eth0 (0) to node r1
 moving r1-eth0 into namespace for r1
 *** r1 : ('ifconfig', 'r1-eth0', 'up')

 added intf r2-eth0 (0) to node r2
 moving r2-eth0 into namespace for r2
 *** r2 : ('ifconfig', 'r2-eth0', 'up')
 *** r2 : ('ip link add name r2-eth1 address a6:4f:64:39:2b:af type veth
 peer name r3-eth0 address a2:49:d6:30:b2:d8 netns 1547',)

 added intf r2-eth1 (1) to node r2
 moving r2-eth1 into namespace for r2
 *** r2 : ('ifconfig', 'r2-eth1', 'up')

 added intf r3-eth0 (0) to node r3
 moving r3-eth0 into namespace for r3
 *** r3 : ('ifconfig', 'r3-eth0', 'up')
 *** h1 : ('ip link add name h1-eth0 address 1e:d7:9d:cf:13:61 type veth
 peer name r1-eth1 address 22:e8:9b:a9:38:85 netns 1543',)

 added intf h1-eth0 (0) to node h1
 moving h1-eth0 into namespace for h1
 *** h1 : ('ifconfig', 'h1-eth0', 'up')

 added intf r1-eth1 (1) to node r1
 moving r1-eth1 into namespace for r1
 *** r1 : ('ifconfig', 'r1-eth1', 'up')
 *** h2 : ('ip link add name h2-eth0 address fe:c0:a8:2d:37:ab type veth
 peer name r2-eth2 address c6:20:a0:db:c1:cb netns 1545',)

 added intf h2-eth0 (0) to node h2
 moving h2-eth0 into namespace for h2
 *** h2 : ('ifconfig', 'h2-eth0', 'up')

 added intf r2-eth2 (2) to node r2
 moving r2-eth2 into namespace for r2
 *** r2 : ('ifconfig', 'r2-eth2', 'up')
 *** h3 : ('ip link add name h3-eth0 address fa:69:19:e0:af:d8 type veth
 peer name r3-eth1 address de:d4:a5:1d:32:f1 netns 1547',)

 added intf h3-eth0 (0) to node h3
 moving h3-eth0 into namespace for h3
 *** h3 : ('ifconfig', 'h3-eth0', 'up')

 added intf r3-eth1 (1) to node r3
 moving r3-eth1 into namespace for r3
 *** r3 : ('ifconfig', 'r3-eth1', 'up')
 *** Configuring hosts
 h1 *** h1 : ('ifconfig', 'h1-eth0', '10.0.1.1/24', 'up')
 *** h1 : ('ifconfig lo up',)
 h2 *** h2 : ('ifconfig', 'h2-eth0', '10.0.2.1/24', 'up')
 *** h2 : ('ifconfig lo up',)
 h3 *** h3 : ('ifconfig', 'h3-eth0', '10.0.3.1/24', 'up')
 *** h3 : ('ifconfig lo up',)
 r1 *** r1 : ('ifconfig', 'r1-eth0', '10.0.0.4/8', 'up')
 *** r1 : ('ifconfig lo up',)
 r2 *** r2 : ('ifconfig', 'r2-eth0', '10.0.0.5/8', 'up')
 *** r2 : ('ifconfig lo up',)
 r3 *** r3 : ('ifconfig', 'r3-eth0', '10.0.0.6/8', 'up')
 *** r3 : ('ifconfig lo up',)

 *** h1 : ('ip r add 0.0.0.0/0 via

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-03-16 Thread Yi Tseng

1)
Yes, this is normal
2)
You need to enter network namespace of r1, and use telnet to access quagga
console

To enter the namespace, you can use *m* command
https://github.com/mininet/mininet/blob/master/util/m

2018-03-16 0:20 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> I am able to run it now, however, there are two things:
> *1) I am getting errRun mesages as below:*
> -
>
> mininet@mininet-vm:~/bgp-3as$ sudo python as.py
> *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
> 1
>   0*** Setting resource limits
> *** errRun: ['which', 'mnexec']
> /usr/bin/mnexec
>   0*** errRun: ['which', 'ifconfig']
> /sbin/ifconfig
> ...
> ...
> *** errRun: ['stty', 'echo', 'sane', 'intr', '^C']
>   0mininet>
>
> --
>   *Is this normal?.*
>
> *2) How can i login to r1 console?. I want to run some bgpd command like*
>  * bgpd-R1# sh ip bgp*
>
> Thanks
> Hadem
>
>
> On Tue, Mar 13, 2018 at 10:07 PM, Yi Tseng  wrote:
>
>> Hi,
>>
>> Please don't drop mailing list
>>
>> I just update it, please check again
>>
>> Yi
>>
>> 2018-03-13 18:19 GMT+08:00 Pynbiang Hadem :
>>
>>> Hi Takeshi,
>>>
>>> I run the topology file *as.py* from *bgp-3as* and i got the following
>>> error messages. Pls help
>>>
>>> mininet@mininet-vm:~/bgp-3as$ sudo python as.py
>>> *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
>>> 1
>>>   0*** Setting resource limits
>>> *** errRun: ['which', 'mnexec']
>>> /usr/bin/mnexec
>>>   0*** errRun: ['which', 'ifconfig']
>>> /sbin/ifconfig
>>>   0*** h1 : ('unset HISTFILE; stty -echo; set +m',)
>>> unset HISTFILE; stty -echo; set +m
>>> *** h2 : ('unset HISTFILE; stty -echo; set +m',)
>>> unset HISTFILE; stty -echo; set +m
>>> *** h3 : ('unset HISTFILE; stty -echo; set +m',)
>>> unset HISTFILE; stty -echo; set +m
>>> *** r1 : ('unset HISTFILE; stty -echo; set +m',)
>>> unset HISTFILE; stty -echo; set +m
>>> *** r2 : ('unset HISTFILE; stty -echo; set +m',)
>>> unset HISTFILE; stty -echo; set +m
>>> *** r3 : ('unset HISTFILE; stty -echo; set +m',)
>>> unset HISTFILE; stty -echo; set +m
>>> *** r1 : ('ip link add name r1-eth0 address e6:07:c4:3d:f1:ad type veth
>>> peer name r2-eth0 address 62:7d:bb:f1:1b:0b netns 1545',)
>>>
>>> added intf r1-eth0 (0) to node r1
>>> moving r1-eth0 into namespace for r1
>>> *** r1 : ('ifconfig', 'r1-eth0', 'up')
>>>
>>> added intf r2-eth0 (0) to node r2
>>> moving r2-eth0 into namespace for r2
>>> *** r2 : ('ifconfig', 'r2-eth0', 'up')
>>> *** r2 : ('ip link add name r2-eth1 address a6:4f:64:39:2b:af type veth
>>> peer name r3-eth0 address a2:49:d6:30:b2:d8 netns 1547',)
>>>
>>> added intf r2-eth1 (1) to node r2
>>> moving r2-eth1 into namespace for r2
>>> *** r2 : ('ifconfig', 'r2-eth1', 'up')
>>>
>>> added intf r3-eth0 (0) to node r3
>>> moving r3-eth0 into namespace for r3
>>> *** r3 : ('ifconfig', 'r3-eth0', 'up')
>>> *** h1 : ('ip link add name h1-eth0 address 1e:d7:9d:cf:13:61 type veth
>>> peer name r1-eth1 address 22:e8:9b:a9:38:85 netns 1543',)
>>>
>>> added intf h1-eth0 (0) to node h1
>>> moving h1-eth0 into namespace for h1
>>> *** h1 : ('ifconfig', 'h1-eth0', 'up')
>>>
>>> added intf r1-eth1 (1) to node r1
>>> moving r1-eth1 into namespace for r1
>>> *** r1 : ('ifconfig', 'r1-eth1', 'up')
>>> *** h2 : ('ip link add name h2-eth0 address fe:c0:a8:2d:37:ab type veth
>>> peer name r2-eth2 address c6:20:a0:db:c1:cb netns 1545',)
>>>
>>> added intf h2-eth0 (0) to node h2
>>> moving h2-eth0 into namespace for h2
>>> *** h2 : ('ifconfig', 'h2-eth0', 'up')
>>>
>>> added intf r2-eth2 (2) to node r2
>>> moving r2-eth2 into namespace for r2
>>> *** r2 : ('ifconfig', 'r2-eth2', 'up')
>>> *** h3 : ('ip link add name h3-eth0 address fa:69:19:e0:af:d8 type veth
>>> peer name r3-eth1 address de:d4:a5:1d:32:f1 netns 1547',)
>>>
>>> added intf h3-eth0 (0) to node h3
>>> moving h3-eth0 into namespace for h3
>>> *** h3 : ('ifconfig', 'h3-eth0', 'up')
>>>
>>> added intf r3-eth1 (1) to node r3
>>> moving r3-eth1 into namespace for r3
>>> *** r3 : ('ifconfig', 'r3-eth1', 'up')
>>> *** Configuring hosts
>>> h1 *** h1 : ('ifconfig', 'h1-eth0', '10.0.1.1/24', 'up')
>>> *** h1 : ('ifconfig lo up',)
>>> h2 *** h2 : ('ifconfig', 'h2-eth0', '10.0.2.1/24', 'up')
>>> *** h2 : ('ifconfig lo up',)
>>> h3 *** h3 : ('ifconfig', 'h3-eth0', '10.0.3.1/24', 'up')
>>> *** h3 : ('ifconfig lo up',)
>>> r1 *** r1 : ('ifconfig', 'r1-eth0', '10.0.0.4/8', 'up')
>>> *** r1 : ('ifconfig lo up',)
>>> r2 *** r2 : ('ifconfig', 'r2-eth0', '10.0.0.5/8', 'up')
>>> *** r2 : ('ifconfig lo up',)
>>> r3 *** r3 : ('ifconfig', 'r3-eth0', '10.0.0.6/8', 'up')
>>> *** r3 : ('ifconfig lo up',)
>>>
>>> *** h1 : ('ip r add 0.0.0.0/0 via 10.0.1.254',)
>>> *** h2 : ('ip r add 0.0.0.0/0 via 10.0.2.254',)
>>> *** h3 : ('ip r add 0.0.0.0/0 via 10.0.3.254',)
>>> *** r1 : ('ip a del 10.0.0.4/8 dev r1-eth0',)
>>> *** r2 : ('ip a del 10.0.0.5/8 dev r2-eth0',)
>>> *** r3 : ('ip a del 10.0.0.6/8 dev r3-eth0',)
>>> *** r1 : ('ip a add 10.0.1.254/24 dev r1-eth1',)
>>> ***

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-03-15 Thread Pynbiang Hadem

Hi Takeshi,

I am able to run it now, however, there are two things:
*1) I am getting errRun mesages as below:*
-

mininet@mininet-vm:~/bgp-3as$ sudo python as.py
*** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
1
  0*** Setting resource limits
*** errRun: ['which', 'mnexec']
/usr/bin/mnexec
  0*** errRun: ['which', 'ifconfig']
/sbin/ifconfig
...
...
*** errRun: ['stty', 'echo', 'sane', 'intr', '^C']
  0mininet>

--
  *Is this normal?.*

*2) How can i login to r1 console?. I want to run some bgpd command like*
 * bgpd-R1# sh ip bgp*

Thanks
Hadem


On Tue, Mar 13, 2018 at 10:07 PM, Yi Tseng  wrote:

> Hi,
>
> Please don't drop mailing list
>
> I just update it, please check again
>
> Yi
>
> 2018-03-13 18:19 GMT+08:00 Pynbiang Hadem :
>
>> Hi Takeshi,
>>
>> I run the topology file *as.py* from *bgp-3as* and i got the following
>> error messages. Pls help
>>
>> mininet@mininet-vm:~/bgp-3as$ sudo python as.py
>> *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
>> 1
>>   0*** Setting resource limits
>> *** errRun: ['which', 'mnexec']
>> /usr/bin/mnexec
>>   0*** errRun: ['which', 'ifconfig']
>> /sbin/ifconfig
>>   0*** h1 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** h2 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** h3 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** r1 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** r2 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** r3 : ('unset HISTFILE; stty -echo; set +m',)
>> unset HISTFILE; stty -echo; set +m
>> *** r1 : ('ip link add name r1-eth0 address e6:07:c4:3d:f1:ad type veth
>> peer name r2-eth0 address 62:7d:bb:f1:1b:0b netns 1545',)
>>
>> added intf r1-eth0 (0) to node r1
>> moving r1-eth0 into namespace for r1
>> *** r1 : ('ifconfig', 'r1-eth0', 'up')
>>
>> added intf r2-eth0 (0) to node r2
>> moving r2-eth0 into namespace for r2
>> *** r2 : ('ifconfig', 'r2-eth0', 'up')
>> *** r2 : ('ip link add name r2-eth1 address a6:4f:64:39:2b:af type veth
>> peer name r3-eth0 address a2:49:d6:30:b2:d8 netns 1547',)
>>
>> added intf r2-eth1 (1) to node r2
>> moving r2-eth1 into namespace for r2
>> *** r2 : ('ifconfig', 'r2-eth1', 'up')
>>
>> added intf r3-eth0 (0) to node r3
>> moving r3-eth0 into namespace for r3
>> *** r3 : ('ifconfig', 'r3-eth0', 'up')
>> *** h1 : ('ip link add name h1-eth0 address 1e:d7:9d:cf:13:61 type veth
>> peer name r1-eth1 address 22:e8:9b:a9:38:85 netns 1543',)
>>
>> added intf h1-eth0 (0) to node h1
>> moving h1-eth0 into namespace for h1
>> *** h1 : ('ifconfig', 'h1-eth0', 'up')
>>
>> added intf r1-eth1 (1) to node r1
>> moving r1-eth1 into namespace for r1
>> *** r1 : ('ifconfig', 'r1-eth1', 'up')
>> *** h2 : ('ip link add name h2-eth0 address fe:c0:a8:2d:37:ab type veth
>> peer name r2-eth2 address c6:20:a0:db:c1:cb netns 1545',)
>>
>> added intf h2-eth0 (0) to node h2
>> moving h2-eth0 into namespace for h2
>> *** h2 : ('ifconfig', 'h2-eth0', 'up')
>>
>> added intf r2-eth2 (2) to node r2
>> moving r2-eth2 into namespace for r2
>> *** r2 : ('ifconfig', 'r2-eth2', 'up')
>> *** h3 : ('ip link add name h3-eth0 address fa:69:19:e0:af:d8 type veth
>> peer name r3-eth1 address de:d4:a5:1d:32:f1 netns 1547',)
>>
>> added intf h3-eth0 (0) to node h3
>> moving h3-eth0 into namespace for h3
>> *** h3 : ('ifconfig', 'h3-eth0', 'up')
>>
>> added intf r3-eth1 (1) to node r3
>> moving r3-eth1 into namespace for r3
>> *** r3 : ('ifconfig', 'r3-eth1', 'up')
>> *** Configuring hosts
>> h1 *** h1 : ('ifconfig', 'h1-eth0', '10.0.1.1/24', 'up')
>> *** h1 : ('ifconfig lo up',)
>> h2 *** h2 : ('ifconfig', 'h2-eth0', '10.0.2.1/24', 'up')
>> *** h2 : ('ifconfig lo up',)
>> h3 *** h3 : ('ifconfig', 'h3-eth0', '10.0.3.1/24', 'up')
>> *** h3 : ('ifconfig lo up',)
>> r1 *** r1 : ('ifconfig', 'r1-eth0', '10.0.0.4/8', 'up')
>> *** r1 : ('ifconfig lo up',)
>> r2 *** r2 : ('ifconfig', 'r2-eth0', '10.0.0.5/8', 'up')
>> *** r2 : ('ifconfig lo up',)
>> r3 *** r3 : ('ifconfig', 'r3-eth0', '10.0.0.6/8', 'up')
>> *** r3 : ('ifconfig lo up',)
>>
>> *** h1 : ('ip r add 0.0.0.0/0 via 10.0.1.254',)
>> *** h2 : ('ip r add 0.0.0.0/0 via 10.0.2.254',)
>> *** h3 : ('ip r add 0.0.0.0/0 via 10.0.3.254',)
>> *** r1 : ('ip a del 10.0.0.4/8 dev r1-eth0',)
>> *** r2 : ('ip a del 10.0.0.5/8 dev r2-eth0',)
>> *** r3 : ('ip a del 10.0.0.6/8 dev r3-eth0',)
>> *** r1 : ('ip a add 10.0.1.254/24 dev r1-eth1',)
>> *** r2 : ('ip a add 10.0.2.254/24 dev r2-eth2',)
>> *** r3 : ('ip a add 10.0.3.254/24 dev r3-eth1',)
>> *** r1 : ('ip a add 192.168.1.1/24 dev r1-eth0',)
>> *** r2 : ('ip a add 192.168.1.2/24 dev r2-eth0',)
>> *** r2 : ('ip a add 192.168.2.1/24 dev r2-eth1',)
>> *** r3 : ('ip a add 192.168.2.2/24 dev r3-eth0',)
>> *** r1 : ('/usr/lib/quagga/zebra -d -f zebra.conf -z
>> /var/run/quagga/zebra-r1.api -i /var/run/quagga/z

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-03-13 Thread Yi Tseng

Hi,

Please don't drop mailing list

I just update it, please check again

Yi

2018-03-13 18:19 GMT+08:00 Pynbiang Hadem :

> Hi Takeshi,
>
> I run the topology file *as.py* from *bgp-3as* and i got the following
> error messages. Pls help
>
> mininet@mininet-vm:~/bgp-3as$ sudo python as.py
> *** errRun: ['grep', '-c', 'processor', '/proc/cpuinfo']
> 1
>   0*** Setting resource limits
> *** errRun: ['which', 'mnexec']
> /usr/bin/mnexec
>   0*** errRun: ['which', 'ifconfig']
> /sbin/ifconfig
>   0*** h1 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** h2 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** h3 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** r1 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** r2 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** r3 : ('unset HISTFILE; stty -echo; set +m',)
> unset HISTFILE; stty -echo; set +m
> *** r1 : ('ip link add name r1-eth0 address e6:07:c4:3d:f1:ad type veth
> peer name r2-eth0 address 62:7d:bb:f1:1b:0b netns 1545',)
>
> added intf r1-eth0 (0) to node r1
> moving r1-eth0 into namespace for r1
> *** r1 : ('ifconfig', 'r1-eth0', 'up')
>
> added intf r2-eth0 (0) to node r2
> moving r2-eth0 into namespace for r2
> *** r2 : ('ifconfig', 'r2-eth0', 'up')
> *** r2 : ('ip link add name r2-eth1 address a6:4f:64:39:2b:af type veth
> peer name r3-eth0 address a2:49:d6:30:b2:d8 netns 1547',)
>
> added intf r2-eth1 (1) to node r2
> moving r2-eth1 into namespace for r2
> *** r2 : ('ifconfig', 'r2-eth1', 'up')
>
> added intf r3-eth0 (0) to node r3
> moving r3-eth0 into namespace for r3
> *** r3 : ('ifconfig', 'r3-eth0', 'up')
> *** h1 : ('ip link add name h1-eth0 address 1e:d7:9d:cf:13:61 type veth
> peer name r1-eth1 address 22:e8:9b:a9:38:85 netns 1543',)
>
> added intf h1-eth0 (0) to node h1
> moving h1-eth0 into namespace for h1
> *** h1 : ('ifconfig', 'h1-eth0', 'up')
>
> added intf r1-eth1 (1) to node r1
> moving r1-eth1 into namespace for r1
> *** r1 : ('ifconfig', 'r1-eth1', 'up')
> *** h2 : ('ip link add name h2-eth0 address fe:c0:a8:2d:37:ab type veth
> peer name r2-eth2 address c6:20:a0:db:c1:cb netns 1545',)
>
> added intf h2-eth0 (0) to node h2
> moving h2-eth0 into namespace for h2
> *** h2 : ('ifconfig', 'h2-eth0', 'up')
>
> added intf r2-eth2 (2) to node r2
> moving r2-eth2 into namespace for r2
> *** r2 : ('ifconfig', 'r2-eth2', 'up')
> *** h3 : ('ip link add name h3-eth0 address fa:69:19:e0:af:d8 type veth
> peer name r3-eth1 address de:d4:a5:1d:32:f1 netns 1547',)
>
> added intf h3-eth0 (0) to node h3
> moving h3-eth0 into namespace for h3
> *** h3 : ('ifconfig', 'h3-eth0', 'up')
>
> added intf r3-eth1 (1) to node r3
> moving r3-eth1 into namespace for r3
> *** r3 : ('ifconfig', 'r3-eth1', 'up')
> *** Configuring hosts
> h1 *** h1 : ('ifconfig', 'h1-eth0', '10.0.1.1/24', 'up')
> *** h1 : ('ifconfig lo up',)
> h2 *** h2 : ('ifconfig', 'h2-eth0', '10.0.2.1/24', 'up')
> *** h2 : ('ifconfig lo up',)
> h3 *** h3 : ('ifconfig', 'h3-eth0', '10.0.3.1/24', 'up')
> *** h3 : ('ifconfig lo up',)
> r1 *** r1 : ('ifconfig', 'r1-eth0', '10.0.0.4/8', 'up')
> *** r1 : ('ifconfig lo up',)
> r2 *** r2 : ('ifconfig', 'r2-eth0', '10.0.0.5/8', 'up')
> *** r2 : ('ifconfig lo up',)
> r3 *** r3 : ('ifconfig', 'r3-eth0', '10.0.0.6/8', 'up')
> *** r3 : ('ifconfig lo up',)
>
> *** h1 : ('ip r add 0.0.0.0/0 via 10.0.1.254',)
> *** h2 : ('ip r add 0.0.0.0/0 via 10.0.2.254',)
> *** h3 : ('ip r add 0.0.0.0/0 via 10.0.3.254',)
> *** r1 : ('ip a del 10.0.0.4/8 dev r1-eth0',)
> *** r2 : ('ip a del 10.0.0.5/8 dev r2-eth0',)
> *** r3 : ('ip a del 10.0.0.6/8 dev r3-eth0',)
> *** r1 : ('ip a add 10.0.1.254/24 dev r1-eth1',)
> *** r2 : ('ip a add 10.0.2.254/24 dev r2-eth2',)
> *** r3 : ('ip a add 10.0.3.254/24 dev r3-eth1',)
> *** r1 : ('ip a add 192.168.1.1/24 dev r1-eth0',)
> *** r2 : ('ip a add 192.168.1.2/24 dev r2-eth0',)
> *** r2 : ('ip a add 192.168.2.1/24 dev r2-eth1',)
> *** r3 : ('ip a add 192.168.2.2/24 dev r3-eth0',)
> *** r1 : ('/usr/lib/quagga/zebra -d -f zebra.conf -z
> /var/run/quagga/zebra-r1.api -i /var/run/quagga/zebra-r1.pid',)
> vty_read_config: failed to open configuration file
> /home/mininet/bgp-3as/zebra.conf: No such file or directory
> can't open configuration file [zebra.conf]
> *** r1 : ('/usr/lib/quagga/bgpd -d -f r1.conf -z
> /var/run/quagga/zebra-r1.api -i /var/run/quagga/bgpd-r1.pid',)
> *** r2 : ('/usr/lib/quagga/zebra -d -f zebra.conf -z
> /var/run/quagga/zebra-r2.api -i /var/run/quagga/zebra-r2.pid',)
> vty_read_config: failed to open configuration file
> /home/mininet/bgp-3as/zebra.conf: No such file or directory
> can't open configuration file [zebra.conf]
> *** r2 : ('/usr/lib/quagga/bgpd -d -f r2.conf -z
> /var/run/quagga/zebra-r2.api -i /var/run/quagga/bgpd-r2.pid',)
> *** r3 : ('/usr/lib/quagga/zebra -d -f zebra.conf -z
> /var/run/quagga/zebra-r3.api -i /var/run/quagga/zebra

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-03-12 Thread Pynbiang Hadem

Thanks Takeshi,

Will try it out. Will get back in case of any more doubts.

Thanks
Hadem

On Mon, Mar 12, 2018 at 11:11 AM, Yi Tseng  wrote:

> [+mininet mailing list]
>
> Hi,
>
> I think what you need to do is to create 6 network namespace and run
> quagga+zebra process inside 3 of namespace.
>
> No switch(and controller) in your topology.
>
> All you need is to install mininet and quagga(via apt-get) and enable ip
> forwarding on your host machine
>
> And run this example, this example creates 3 AS with 3 hosts, AS exchanges
> prefix information using BGP message
> https://github.com/TakeshiTseng/SDN-Work/blob/master/mininet/bgp-3as/
>
> Yi
>
> 2018-03-11 16:21 GMT+08:00 Pynbiang Hadem :
>
>> Hi,
>>
>> Can anyone suggest how i can achieve the target objective in mininet and
>> ryu.
>>
>> Thanks
>> Hadem
>>
>> On Sun, Mar 11, 2018 at 11:30 AM, knet solutions <
>> knetsolutio...@gmail.com> wrote:
>>
>>> Hi ,
>>>
>>> KNet is alternative for Mininet.  Host systems are based on docker not
>>> namespace.  KNet supports traditional routers(bird routing daemon), Servers
>>> also as hosts.
>>>
>>> But openvswitches are in the host system. Not in separate namespace or
>>> docker contrainers.
>>>
>>> I thought, you are looking for traditional BGP router in your topology.
>>> Thats why i suggested this.
>>>
>>> I guess, you need openvswitch in separate namespace / docker container
>>> .  Currently KNet doesnt support this.
>>>
>>> Thanks
>>> Suresh.
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Sat, Mar 10, 2018 at 11:22 AM, Pynbiang Hadem <
>>> pynbiang.ha...@gmail.com> wrote:
>>>
 Hi Suresh,

 1) KNet should be installed on Mininet or without Mininet?.
 2) To achieve independent namespaces for each switches, do we need
 Quagga and Zebra?.

 Thanks
 Hadem


 On Sat, Mar 10, 2018 at 10:24 AM, Pynbiang Hadem <
 pynbiang.ha...@gmail.com> wrote:

> Thanks Suresh from KNet.
>
> I will read the documentation, try it out and get back to you for
> help, clarification and advice.
>
> Thanks
> Hadem
>
>
> On Fri, Mar 9, 2018 at 8:46 PM, knet solutions <
> knetsolutio...@gmail.com> wrote:
>
>> Hi,
>>
>> Check  knet. It supports router node(bird routing daemon). you can
>> setup such topology.
>>
>> http://knet-topology-builder.readthedocs.io/en/latest/
>>
>> I can help you.
>>
>> Thanks
>> suresh
>>
>>
>> On Fri, Mar 9, 2018 at 8:13 PM, Pynbiang Hadem <
>> pynbiang.ha...@gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I want to simulate BGP connectivity between 3 ASes in Mininet with
>>> one host in each AS as below:
>>>
>>>   h1 -- AS1 -- AS2 -- AS3 -- h3
>>> h2
>>>
>>> How can i create the topology so that each AS is represented by a
>>> switch/router and each router is in a separate namespace?
>>> What are the requirements to setup such an environment?
>>>
>>> Thanks
>>> Hadem
>>>
>>>
>>>
>>> 
>>> --
>>> Check out the vibrant tech community on one of the world's most
>>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>>> ___
>>> Ryu-devel mailing list
>>> Ryu-devel@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>>
>>>
>>
>>
>> --
>>
>> *Regards, *
>> *Knet solutions.*
>>
>> https://github.com/knetsolutions/KNet
>> http://knet-topology-builder.readthedocs.io/
>> http://knetsolutions.in/
>>
>>
>

>>>
>>>
>>> --
>>>
>>> *Regards, *
>>> *Knet solutions.*
>>>
>>> https://github.com/knetsolutions/KNet
>>> http://knet-topology-builder.readthedocs.io/
>>> http://knetsolutions.in/
>>>
>>>
>>
>> 
>> --
>> Check out the vibrant tech community on one of the world's most
>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>> ___
>> Ryu-devel mailing list
>> Ryu-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>
>>
>
>
> --
> Yi Tseng (a.k.a Takeshi)
> Taiwan National Chiao Tung University
> Department of Computer Science
> W2CNLab
>
> https://takeshi.tw
>
--
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot___
Ryu-devel mailing list
Ryu-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/ryu-devel

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-03-11 Thread Yi Tseng

[+mininet mailing list]

Hi,

I think what you need to do is to create 6 network namespace and run
quagga+zebra process inside 3 of namespace.

No switch(and controller) in your topology.

All you need is to install mininet and quagga(via apt-get) and enable ip
forwarding on your host machine

And run this example, this example creates 3 AS with 3 hosts, AS exchanges
prefix information using BGP message
https://github.com/TakeshiTseng/SDN-Work/blob/master/mininet/bgp-3as/

Yi

2018-03-11 16:21 GMT+08:00 Pynbiang Hadem :

> Hi,
>
> Can anyone suggest how i can achieve the target objective in mininet and
> ryu.
>
> Thanks
> Hadem
>
> On Sun, Mar 11, 2018 at 11:30 AM, knet solutions  > wrote:
>
>> Hi ,
>>
>> KNet is alternative for Mininet.  Host systems are based on docker not
>> namespace.  KNet supports traditional routers(bird routing daemon), Servers
>> also as hosts.
>>
>> But openvswitches are in the host system. Not in separate namespace or
>> docker contrainers.
>>
>> I thought, you are looking for traditional BGP router in your topology.
>> Thats why i suggested this.
>>
>> I guess, you need openvswitch in separate namespace / docker container .
>> Currently KNet doesnt support this.
>>
>> Thanks
>> Suresh.
>>
>>
>>
>>
>>
>>
>> On Sat, Mar 10, 2018 at 11:22 AM, Pynbiang Hadem <
>> pynbiang.ha...@gmail.com> wrote:
>>
>>> Hi Suresh,
>>>
>>> 1) KNet should be installed on Mininet or without Mininet?.
>>> 2) To achieve independent namespaces for each switches, do we need
>>> Quagga and Zebra?.
>>>
>>> Thanks
>>> Hadem
>>>
>>>
>>> On Sat, Mar 10, 2018 at 10:24 AM, Pynbiang Hadem <
>>> pynbiang.ha...@gmail.com> wrote:
>>>
 Thanks Suresh from KNet.

 I will read the documentation, try it out and get back to you for help,
 clarification and advice.

 Thanks
 Hadem


 On Fri, Mar 9, 2018 at 8:46 PM, knet solutions <
 knetsolutio...@gmail.com> wrote:

> Hi,
>
> Check  knet. It supports router node(bird routing daemon). you can
> setup such topology.
>
> http://knet-topology-builder.readthedocs.io/en/latest/
>
> I can help you.
>
> Thanks
> suresh
>
>
> On Fri, Mar 9, 2018 at 8:13 PM, Pynbiang Hadem <
> pynbiang.ha...@gmail.com> wrote:
>
>> Hi,
>>
>> I want to simulate BGP connectivity between 3 ASes in Mininet with
>> one host in each AS as below:
>>
>>   h1 -- AS1 -- AS2 -- AS3 -- h3
>> h2
>>
>> How can i create the topology so that each AS is represented by a
>> switch/router and each router is in a separate namespace?
>> What are the requirements to setup such an environment?
>>
>> Thanks
>> Hadem
>>
>>
>>
>> 
>> --
>> Check out the vibrant tech community on one of the world's most
>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>> ___
>> Ryu-devel mailing list
>> Ryu-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>
>>
>
>
> --
>
> *Regards, *
> *Knet solutions.*
>
> https://github.com/knetsolutions/KNet
> http://knet-topology-builder.readthedocs.io/
> http://knetsolutions.in/
>
>

>>>
>>
>>
>> --
>>
>> *Regards, *
>> *Knet solutions.*
>>
>> https://github.com/knetsolutions/KNet
>> http://knet-topology-builder.readthedocs.io/
>> http://knetsolutions.in/
>>
>>
>
> 
> --
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> ___
> Ryu-devel mailing list
> Ryu-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>
>


-- 
Yi Tseng (a.k.a Takeshi)
Taiwan National Chiao Tung University
Department of Computer Science
W2CNLab

https://takeshi.tw
--
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot___
Ryu-devel mailing list
Ryu-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/ryu-devel

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-03-11 Thread Pynbiang Hadem

Hi,

Can anyone suggest how i can achieve the target objective in mininet and
ryu.

Thanks
Hadem

On Sun, Mar 11, 2018 at 11:30 AM, knet solutions 
wrote:

> Hi ,
>
> KNet is alternative for Mininet.  Host systems are based on docker not
> namespace.  KNet supports traditional routers(bird routing daemon), Servers
> also as hosts.
>
> But openvswitches are in the host system. Not in separate namespace or
> docker contrainers.
>
> I thought, you are looking for traditional BGP router in your topology.
> Thats why i suggested this.
>
> I guess, you need openvswitch in separate namespace / docker container .
> Currently KNet doesnt support this.
>
> Thanks
> Suresh.
>
>
>
>
>
>
> On Sat, Mar 10, 2018 at 11:22 AM, Pynbiang Hadem  > wrote:
>
>> Hi Suresh,
>>
>> 1) KNet should be installed on Mininet or without Mininet?.
>> 2) To achieve independent namespaces for each switches, do we need Quagga
>> and Zebra?.
>>
>> Thanks
>> Hadem
>>
>>
>> On Sat, Mar 10, 2018 at 10:24 AM, Pynbiang Hadem <
>> pynbiang.ha...@gmail.com> wrote:
>>
>>> Thanks Suresh from KNet.
>>>
>>> I will read the documentation, try it out and get back to you for help,
>>> clarification and advice.
>>>
>>> Thanks
>>> Hadem
>>>
>>>
>>> On Fri, Mar 9, 2018 at 8:46 PM, knet solutions >> > wrote:
>>>
 Hi,

 Check  knet. It supports router node(bird routing daemon). you can
 setup such topology.

 http://knet-topology-builder.readthedocs.io/en/latest/

 I can help you.

 Thanks
 suresh


 On Fri, Mar 9, 2018 at 8:13 PM, Pynbiang Hadem <
 pynbiang.ha...@gmail.com> wrote:

> Hi,
>
> I want to simulate BGP connectivity between 3 ASes in Mininet with one
> host in each AS as below:
>
>   h1 -- AS1 -- AS2 -- AS3 -- h3
> h2
>
> How can i create the topology so that each AS is represented by a
> switch/router and each router is in a separate namespace?
> What are the requirements to setup such an environment?
>
> Thanks
> Hadem
>
>
>
> 
> --
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> ___
> Ryu-devel mailing list
> Ryu-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>
>


 --

 *Regards, *
 *Knet solutions.*

 https://github.com/knetsolutions/KNet
 http://knet-topology-builder.readthedocs.io/
 http://knetsolutions.in/


>>>
>>
>
>
> --
>
> *Regards, *
> *Knet solutions.*
>
> https://github.com/knetsolutions/KNet
> http://knet-topology-builder.readthedocs.io/
> http://knetsolutions.in/
>
>
--
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot___
Ryu-devel mailing list
Ryu-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/ryu-devel

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

2018-03-09 Thread Pynbiang Hadem

Hi Suresh,

1) KNet should be installed on Mininet or without Mininet?.
2) To achieve independent namespaces for each switches, do we need Quagga
and Zebra?.

Thanks
Hadem


On Sat, Mar 10, 2018 at 10:24 AM, Pynbiang Hadem 
wrote:

> Thanks Suresh from KNet.
>
> I will read the documentation, try it out and get back to you for help,
> clarification and advice.
>
> Thanks
> Hadem
>
>
> On Fri, Mar 9, 2018 at 8:46 PM, knet solutions 
> wrote:
>
>> Hi,
>>
>> Check  knet. It supports router node(bird routing daemon). you can setup
>> such topology.
>>
>> http://knet-topology-builder.readthedocs.io/en/latest/
>>
>> I can help you.
>>
>> Thanks
>> suresh
>>
>>
>> On Fri, Mar 9, 2018 at 8:13 PM, Pynbiang Hadem 
>> wrote:
>>
>>> Hi,
>>>
>>> I want to simulate BGP connectivity between 3 ASes in Mininet with one
>>> host in each AS as below:
>>>
>>>   h1 -- AS1 -- AS2 -- AS3 -- h3
>>> h2
>>>
>>> How can i create the topology so that each AS is represented by a
>>> switch/router and each router is in a separate namespace?
>>> What are the requirements to setup such an environment?
>>>
>>> Thanks
>>> Hadem
>>>
>>>
>>>
>>> 
>>> --
>>> Check out the vibrant tech community on one of the world's most
>>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>>> ___
>>> Ryu-devel mailing list
>>> Ryu-devel@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>>
>>>
>>
>>
>> --
>>
>> *Regards, *
>> *Knet solutions.*
>>
>> https://github.com/knetsolutions/KNet
>> http://knet-topology-builder.readthedocs.io/
>> http://knetsolutions.in/
>>
>>
>
--
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot___
Ryu-devel mailing list
Ryu-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/ryu-devel

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

Re: [Ryu-devel] How to setup multiple ASes in Mininet represented by switches in independent namespaces

23 matches

Site Navigation

Mail list logo

Footer information