Hi Iwase,
The doc changes are correct. I have one more point thing to point out, I am
not sure whether it causes any abnormal behavior or not.
If 'ovs-vsctl set Bridge s1 protocols="OpenFlow13"' is executed after
switch is connected to Ryu then we can see BGP throwing and error message
of openFlow in debug logs. However if set the switch as 'OpenFlow13' during
it creation in mininet, that small error disappears. So I used 's1 =
self.addSwitch('s1', dpid="1", protocols='OpenFlow13')' in my mininet files
so that switches are by default of OpenFlow13 before they connect to ryu
controller. I am not sure about whether setting them as openFlow13 using
ovs command would cause any error. Just wanted to point out, incase anyone
faces any issue.
Regards,
Varun.
On Mon, Dec 4, 2017 at 4:51 AM, Iwase Yusuke <iwase.yusu...@gmail.com>
wrote:
> Hi Varun,
>
> Thank you for your confirmation!
>
> I've posted my patch for adding some notes when using Mininet VMs with
> rest_vtep.py.
> https://www.mail-archive.com/ryu-devel@lists.sourceforge.net/msg14341.html
>
> With this patch, Ryu-Doc would be like;
> http://ryu-iwase.readthedocs.io/en/rest_vtep-add_some_desc_f
> or_troubleshooting/app/rest_vtep.html#troubleshooting
>
> Thanks,
> Iwase
>
>
> On 2017年12月01日 23:11, Varun Amrutiya wrote:
>
>> Hi Iwase,
>>
>> The lines highlighted by you are correct. I also enabled ipv6 by changing
>> the sysctl and the grub file the same way.
>>
>> https://github.com/mininet/mininet/blob/f65e1ab9361632f8ba83
>> b296e27f1fecc257d4f9/util/install.sh#L615-L639
>>
>> Regards,
>> Varun.
>>
>> On Fri, Dec 1, 2017 at 5:36 AM, Iwase Yusuke <iwase.yusu...@gmail.com
>> <mailto:iwase.yusu...@gmail.com>> wrote:
>>
>> Hi Varun,
>>
>> Thank you so much for using this application!
>> ..but I'm sorry it has some buggy behavior because I implemented it
>> experimental...
>>
>>
>> > The module is fine works correctly. The only thing required for it
>> to work was
>> > just to enable 'ipv6'. As soon as I enabled it started working
>> fine, already
>> > tested it with more than two vm and more than 5 hosts
>> connected.*Please
>> include
>> > in documentation that 'ipv6' is required to be enabled for BGP to
>> work
>> > correctly.* Also the 'EventOFPErrorMsg ' disappeared once bgp was
>> enabled. Hope
>> > you find why it doesn't work only with 'ipv4'.
>> >
>> > I was using Mininet VM and they have ipv6 disabled by default, so I
>> had no
>> > reason to believe that 'ipv6' could be culprit here. I went through
>> some old
>> > threads on the devel group where bgp was failing and you suggested
>> to enable
>> > 'ipv6', that where I got hint it might be the issue.
>>
>> Thanks for reporting this issue!
>>
>> Just to confirm, you mean the following setting which Mininet does at
>> its
>> installation?
>> https://github.com/mininet/mininet/blob/f65e1ab9361632f8ba83
>> b296e27f1fecc257d4f9/util/install.sh#L615-L639
>> <https://github.com/mininet/mininet/blob/f65e1ab9361632f8ba8
>> 3b296e27f1fecc257d4f9/util/install.sh#L615-L639>
>>
>> I will add some descriptions as you said and will investigate why
>> "disable IPv6"
>> settings cause this issue.
>>
>>
>> > Also you can include one more thing in documentation to make
>> switches in
>> > mininet via this command 's1 = self.addSwitch('s1', dpid="1",
>> > protocols='OpenFlow13')' , this helps in eliminating one more
>> OpenFlow13 error
>> > message from debug logs.
>> >
>> > The module was tested with Ryu:4.19 and ovs: 2.6
>>
>> Yeah! I will include the OpenFlow version and the tested version of
>> Ryu, OVS and
>> Mininet on the document!
>> Thanks a lot!
>>
>> I will post the patch later!
>>
>>
>> Thanks,
>> Iwase
>>
>>
>> On 2017年11月30日 16:47, Varun Amrutiya wrote:
>>
>> Hi Iwase,
>>
>> First of all, this is a very good module that you have written in
>> Ryu.
>> Simply perfect.
>>
>> The module is fine works correctly. The only thing required for
>> it to
>> work was just to enable 'ipv6'. As soon as I enabled it started
>> working
>> fine, already tested it with more than two vm and more than 5
>> hosts
>> connected.*Please include in documentation that 'ipv6' is
>> required to be
>> enabled for BGP to work correctly.* Also the 'EventOFPErrorMsg '
>> disappeared once bgp was enabled. Hope you find why it doesn't
>> work only
>> with 'ipv4'.
>>
>> I was using Mininet VM and they have ipv6 disabled by default, so
>> I had
>> no reason to believe that 'ipv6' could be culprit here. I went
>> through
>> some old threads on the devel group where bgp was failing and you
>> suggested to enable 'ipv6', that where I got hint it might be the
>> issue.
>>
>> Also you can include one more thing in documentation to make
>> switches
>> in mininet via this command 's1 = self.addSwitch('s1', dpid="1",
>> protocols='OpenFlow13')' , this helps in eliminating one more
>> OpenFlow13
>> error message from debug logs.
>>
>> The module was tested with Ryu:4.19 and ovs: 2.6
>>
>> Regards,
>> Varun.
>>
>>
>>
>> On Thu, Nov 30, 2017 at 12:55 PM, Iwase Yusuke <
>> iwase.yusu...@gmail.com
>> <mailto:iwase.yusu...@gmail.com> <mailto:iwase.yusu...@gmail.com
>>
>> <mailto:iwase.yusu...@gmail.com>>> wrote:
>>
>> Hi Varun,
>>
>> I'm very sorry for the delay.
>> Would you mind including the Ryu-devel mailing list?
>>
>> I've tested rest_vtep.py on my environment, I couldn't
>> reproduce
>> your issue...
>> I used my Docker image which has Mininet and Ryu, and I
>> create the
>> topology
>> which has 3 nodes and each node has 2 Mininet hosts.
>>
>> Docker Image:
>> https://hub.docker.com/r/iwaseyusuke/ryu-mininet/
>> <https://hub.docker.com/r/iwaseyusuke/ryu-mininet/>
>> <https://hub.docker.com/r/iwaseyusuke/ryu-mininet/
>> <https://hub.docker.com/r/iwaseyusuke/ryu-mininet/>>
>>
>>
>> Version of OVS, Mininet and Ryu included in the above Docker
>> image:
>> root@a96d42869486:~# ovs-vsctl --version
>> ovs-vsctl (Open vSwitch) 2.5.2 # this is apt packaged
>> version on
>> Ubuntu 16.04
>> Compiled Oct 17 2017 16:38:57
>> DB Schema 7.12.1
>> root@a96d42869486:~# mn --version
>> 2.2.1 # this is apt packaged version on Ubuntu 16.04
>> root@a96d42869486:~# ryu --version
>> ryu 4.19
>>
>>
>> Topology:
>> +---------------+ +---------------+
>> | node1 | | node2 |
>> | +-----------+ | | +-----------+ |
>> | | s1 +----(Linux)----+ s1 | |
>> | +-+------+--+ | (Bridge) | +-+------+--+ |
>> | | | | | | | | |
>> | +-+--+ +-+--+ | | | +-+--+ +-+--+ |
>> | | h1 | | h2 | | | | | h1 | | h2 | |
>> | +----+ +----+ | | | +----+ +----+ |
>> +---------------+ | +---------------+
>> |
>> |
>> +---------------+
>> | node3 |
>> | +-----------+ |
>> | | s1 | |
>> | +-+------+--+ |
>> | | | |
>> | +-+--+ +-+--+ |
>> | | h1 | | h2 | |
>> | +----+ +----+ |
>> +---------------+
>>
>>
>> > *EventOFPErrorMsg received.*
>> > *version=0x4, msg_type=0x1, msg_len=0x4c,
>> xid=0xde4e44b*
>> > * `-- msg_type: OFPT_ERROR(1)*
>> > *OFPErrorMsg(type=0x2, code=0xf,
>> >
>> data=b'\x04\x0e\x01\x00\x0d\xe
>> 4\xe4\x4b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\
>> x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\xff\xff\
>> xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\
>> x00\x01\x00\x2c\x80\x00\x05\x10\x00\x00\x00\x00\x00\x00\x00\x0a')*
>> > * |-- type: OFPET_BAD_ACTION(2)*
>> > * |-- code: OFPBAC_BAD_SET_ARGUMENT(15)*
>> > * `-- data: version=0x4, msg_type=0xe, msg_len=0x100,
>> xid=0xde4e44b*
>> > * `-- msg_type: OFPT_FLOW_MOD(14)*
>>
>> The above message shows the argument of SET_FIELD action is
>> invalid
>> (e.g.,
>> exceeds the rage), so your OVS cannot accept the flows which
>> rest_vetp.py tried
>> to install...
>>
>>
>> Thanks,
>> Iwase
>>
>>
>> On 2017年11月24日 04:35, AMRUTIYA VARUN ALPESHKUMAR wrote:
>>
>> Hi,
>>
>> Can ipv6 being disabled be the issue ?
>>
>> regards,
>> Varun.
>>
>> On Fri, Nov 24, 2017 at 12:57 AM, AMRUTIYA VARUN
>> ALPESHKUMAR
>> <h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>
>> <mailto:h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>>
>> <mailto:h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>
>>
>> <mailto:h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>>>> wrote:
>>
>> Hi,
>>
>> (rest_vtep.sh)
>> Finally narrowed it down to one step.
>> The error is of openflow, it occurs when a client
>> tries to
>> register
>> itself
>> to the switch and 'add_client' is called.
>>
>> The error msg, Issue with BGP libray probably, (i
>> think in
>> vpn.py L111)
>>
>>
>>
>> New best path selected for destination
>> Destination(table:
>> Table(scope_id:
>> 65000:10, rf: RouteFamily(afi=25,safi=70)), nlri:
>> EvpnMacIPAdvertisementNLRI(esi
>> =EvpnArbitraryEsi(type=0,value='\x00\x00\x00\x00\x00\x00\
>> x00\x00\x00'),ethernet_tag_id=0,ip_addr='10.0.0.21',ip_addr_
>> len=32,length=37,mac_addr='aa:bb:cc:00:00:21',mac_addr_len=
>> 48,route_dist='65000:10',type=2),
>> paths: 1, withdraws: 0, new paths: 0)
>> *EVENT ofp_event->ofctl_service EventOFPErrorMsg*
>> *EventOFPErrorMsg received.*
>> *version=0x4, msg_type=0x1, msg_len=0x4c,
>> xid=0xde4e44b*
>> * `-- msg_type: OFPT_ERROR(1)*
>> *OFPErrorMsg(type=0x2, code=0xf,
>> data=b'\x04\x0e\x01\x00\x0d\xe
>> 4\xe4\x4b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\
>> x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x02\xff\xff\
>> xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\
>> x00\x01\x00\x2c\x80\x00\x05\x10\x00\x00\x00\x00\x00\x00\x00\x0a')*
>> * |-- type: OFPET_BAD_ACTION(2)*
>> * |-- code: OFPBAC_BAD_SET_ARGUMENT(15)*
>> * `-- data: version=0x4, msg_type=0xe,
>> msg_len=0x100,
>> xid=0xde4e44b*
>> * `-- msg_type: OFPT_FLOW_MOD(14)*
>> *unknown error xid 233104459*
>> Sent msg to ('192.168.56.102', '179') >>
>> BGPKeepAlive(len=19,type=4)
>> Received msg from ('192.168.56.102', '179') <<
>> BGPKeepAlive(len=19,type=4)
>> Sent msg to ('192.168.56.102', '179') >>
>> BGPKeepAlive(len=19,type=4)
>> Received msg from ('192.168.56.102', '179') <<
>> BGPKeepAlive(len=19,type=4)
>>
>>
>>
>>
>> Hope you'll fix the error.
>>
>> Regards,
>> Varun
>>
>>
>>
>>
>> On Thu, Nov 23, 2017 at 7:54 PM, AMRUTIYA VARUN
>> ALPESHKUMAR
>> <h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>
>> <mailto:h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>>
>> <mailto:h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>
>> <mailto:h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>>>> wrote:
>>
>> Hi,
>>
>> Tested the rest_vtep with ovs 2.6.0 and ryu
>> versions
>> {4.5, 4.6,
>> 4.7,
>> 4.8, 4.9} and {4.17, 4.19}. Ping is still
>> failing. Pls
>> mention the
>> environment properties on which this file was
>> tested.
>> Can't
>> find anyone
>> online who might have used the same script.
>>
>> Also, Once it start in switches it adds all the
>> flows
>> except arp
>> response flow. Why is that ? according to ur
>> thread on
>> ryu-devel it
>> should. This seems the main reason for arp
>> failing.
>>
>> Regards,
>> Varun.
>>
>> On Thu, Nov 23, 2017 at 2:52 PM, AMRUTIYA VARUN
>> ALPESHKUMAR
>> <h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>
>> <mailto:h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>>
>> <mailto:h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>
>>
>> <mailto:h20170...@pilani.bits-pilani.ac.in
>> <mailto:h20170...@pilani.bits-pilani.ac.in>>>> wrote:
>>
>> Hi,
>>
>> I was using the rest_vtep.py for making the
>> topology as
>> presented in
>> the example given in ryu website.
>>
>> But my ping keeps failing, After doing a
>> lot of
>> troubleshooting and
>> verifying all properties are same as given
>> in
>> example, in
>> verbose
>> mode I found the following error which
>> might give you
>> insight. I am
>> trying to implement the same example with
>> three
>> VM instead
>> of 2.
>>
>> What is the ovs version it requires to work
>> ? Mine
>> is 2.0.2
>> can this
>> be problem. Using mininet VM.
>>
>> ryu-version: 4.18
>>
>> I would be very gratefull if you can tell
>> me the
>> required
>> versions.
>>
>> Attached the logs if they can give insight.
>>
>> Sry for not using ryu-devel, souceforge is
>> blocked
>> on my
>> network.
>>
>> (On a tight deadline, if you can help)
>>
>> Regards,
>> Varun.
>> M.E Grad
>>
>>
>>
>>
>>
>>
>>
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>>
>>
>>
>>
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