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>
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/
>
>
> 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\xe4\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>> 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\xe4\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>> 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>> 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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