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Hello,

Thanks for answear. Now I made my own mech_driver which inherits from l2_pop 
driver and it is working ok. But If I will set it as: 
"mechanism_drivers=openvswitch,l2population" than ports will be binded with 
ovs driver so population mechanism will be working in such network?

Best regards
Slawek Kaplonski
slawek at kaplonski.pl

Dnia poniedziałek, 5 maja 2014 00:29:56 Narasimhan, Vivekanandan pisze:
> Hi Slawek,
> 
> I think L2 pop driver needs to be used in conjunction with other mechanism
> drivers.
> 
> It only deals with pro-actively informing agents on which MAC Addresses
> became available/unavailable on cloud nodes and is not meant for
> binding/unbinding ports on segments.
> 
> If you configure mechanism_drivers=openvswitch,l2population in your
> ml2_conf.ini and restart your neutron-server, you'll notice that bind_port
> is handled by OVS mechanism driver (via AgentMechanismDriverBase inside
> ml2/drivers/mech_agent.py).
> 
> --
> Thanks,
> 
> Vivek
> 
> 
> -----Original Message-----
> From: Sławek Kapłoński [mailto:slawek at kaplonski.pl]
> Sent: Sunday, May 04, 2014 12:32 PM
> To: openstack-dev at lists.openstack.org
> Subject: [openstack-dev] [ML2] L2 population mechanism driver
> 
> Hello,
> 
> Last time I want to try using L2pop mechanism driver in ML2 (and openvswitch
> agents on compute nodes). But every time when I try to spawn instance I
> have got error "binding failed". After some searching in code I found that
> l2pop driver have not implemented method "bind_port" and as it inherit
> directly from "MechanismDriver" this method is in fact not implemented.
> Is is ok and this mechanism driver should be used in other way or maybe
> there is some bug in this driver and it miss this method?
> 
> Best regards
> Slawek Kaplonski
> slawek at kaplonski.pl
> 
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