Yes,
I think because Ryu and Quagga uses same port for bgp protocol
2018-04-13 19:44 GMT+08:00 Pynbiang Hadem <pynbiang.ha...@gmail.com>:
> 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 <a86487...@gmail.com> 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-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 <a86487...@gmail.com> 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 <pynbiang.ha...@gmail.com>:
>>>>
>>>>> 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
>>>>> <https://github.com/osrg/ryu>/ryu
>>>>> <https://github.com/osrg/ryu/tree/master/ryu>/services
>>>>> <https://github.com/osrg/ryu/tree/master/ryu/services>/protocols
>>>>> <https://github.com/osrg/ryu/tree/master/ryu/services/protocols>/bgp
>>>>> <https://github.com/osrg/ryu/tree/master/ryu/services/protocols/bgp>/*application.py
>>>>> *in r1 and r2 and get communication between r1 and r2 to happen?.
>>>>> Do we need the ryu <https://github.com/osrg/ryu>/ryu
>>>>> <https://github.com/osrg/ryu/tree/master/ryu>/services
>>>>> <https://github.com/osrg/ryu/tree/master/ryu/services>/protocols
>>>>> <https://github.com/osrg/ryu/tree/master/ryu/services/protocols>/bgp
>>>>> <https://github.com/osrg/ryu/tree/master/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 <a86487...@gmail.com>
>>>>>> 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 <pynbiang.ha...@gmail.com>:
>>>>>>>
>>>>>>>> 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 <a86487...@gmail.com>
>>>>>>>> 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 <
>>>>>>>>> pynbiang.ha...@gmail.com>:
>>>>>>>>>
>>>>>>>>>> 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-r3.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]
>>>>>>>>>> *** r3 : ('/usr/lib/quagga/bgpd -d -f r3.conf -z
>>>>>>>>>> /var/run/quagga/zebra-r3.api -i /var/run/quagga/bgpd-r3.pid',)
>>>>>>>>>> *** Starting CLI:
>>>>>>>>>> *** errRun: ['stty', 'echo', 'sane', 'intr', '^C']
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Thanks
>>>>>>>>>> Hadem
>>>>>>>>>>
>>>>>>>>>> On Mon, Mar 12, 2018 at 11:11 AM, Yi Tseng <a86487...@gmail.com>
>>>>>>>>>> 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 <
>>>>>>>>>>> pynbiang.ha...@gmail.com>:
>>>>>>>>>>>
>>>>>>>>>>>> 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
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Yi Tseng (a.k.a Takeshi)
>>>>>>>>> Taiwan National Chiao Tung University
>>>>>>>>> Department of Computer Science
>>>>>>>>> W2CNLab
>>>>>>>>>
>>>>>>>>> https://takeshi.tw
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Yi Tseng (a.k.a Takeshi)
>>>>>>> Taiwan National Chiao Tung University
>>>>>>> Department of Computer Science
>>>>>>> W2CNLab
>>>>>>>
>>>>>>> https://takeshi.tw
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Yi Tseng (a.k.a Takeshi)
>>>> Taiwan National Chiao Tung University
>>>> Department of Computer Science
>>>> W2CNLab
>>>>
>>>> https://takeshi.tw
>>>>
>>>
>>>
>>
>>
>> --
>> Yi Tseng (a.k.a Takeshi)
>> Taiwan National Chiao Tung University
>> Department of Computer Science
>> W2CNLab
>>
>> https://takeshi.tw
>>
>
>
--
Yi Tseng (a.k.a Takeshi)
Taiwan National Chiao Tung University
Department of Computer Science
W2CNLab
https://takeshi.tw
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