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Multiple L3 agents affect each other's namespace

asked 2014-03-27 02:09:50 -0500

pellaeon gravatar image

updated 2014-03-27 02:56:14 -0500

I run multiple L3 agents on one network node. I use OVS+GRE on Havana.

These multiple L3 agents affect each other. I have 2 external routers and network, which ever agent that is started last modifies interfaces in other qrouter namespaces, causing only the last started agent work.

# cat l3_agent-2.ini
[DEFAULT]
host = network-psuedo2
external_network_bridge = br-ex-2
metadata_port = 8775
handle_internal_only_routers = False
gateway_external_network_id = cc4ad4e0-e86e-43cf-bcd8-36de71be8b01
# OVS
interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
# cat l3_agent.ini
[DEFAULT]
host = network
external_network_bridge = br-ex
metadata_ip = xxx.yy.zz.13
metadata_port = 8775
gateway_external_network_id = 9de13fee-fdcf-4343-9a8b-9f04deaf0d41
# OVS
interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver

Any ideas? thanks Probably same as https://bugs.launchpad.net/neutron/+bug/1257800

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Comments

Hopefully this patch for stable/havana will be merged sometime soon.

darragh-oreilly ( 2014-03-31 03:39:41 -0500 )edit

2 answers

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answered 2014-05-06 22:22:49 -0500

pellaeon gravatar image

router_id directive is needed for multiple l3 agents to co-exist.

In Neutron, each router has its own namespace, if you do not specify which namespace l3 agents should run in, they will interfere with each other.

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answered 2014-04-05 07:29:05 -0500

vikki gravatar image

it is possible without this patch also, i saw somewhere but din't remember the link.but i am sure this is possible in havana without this patch.

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Asked: 2014-03-27 02:09:50 -0500

Seen: 249 times

Last updated: May 06 '14