Open Stack

Hi Subbareddy,,

I have ended up removing the old network setup and reconfigure the network using two l3-agents as suggested in the openstack documentation (as you quoted below).  I was able to associate floating ip to two pools, however, I can reach only the first floating pool ip, but not the second pool initially. I played around  and I was able actually to reach both ip pools, but afterwards, I was not able to launch more instances at all,  the instance stuck in the "Build" state, it apparently stuck in the "network" part, but I can not find any useful message from the log files.

I ended up going back, I used the one agent set up by following this nice blog,
http://www.ajo.es/post/86497974174/using-multiple-external-networks-in-openstack-neutron

I can associate floating ips  for two pools, but I can not reach either of the floating ips.  For tenant, I use "gre" tunnel.  I am going around circle again!

Zhi-Wei Lu
IET-CR-Network Operations Center
University of California, Davis
(530) 752-0155

From: Chinasubbareddy M [mailto:chinasubbareddy_m at persistent.co.in]
Sent: Monday, July 28, 2014 6:56 PM
To: Zhi-Wei Lu; openstack at lists.openstack.org
Subject: RE: [Openstack] issue with multiple floating ip pools for neutron network

Hi,


What about  the handle_internal_only_routers option ?



You need to make sure one should be true and remaining should be false like ,



For the first agent


handle_internal_only_routers = True

gateway_external_network_id = 2118b11c-011e-4fa5-a6f1-2ca34d372c35

external_network_bridge = br-ex

For the second (or later) agent


handle_internal_only_routers = False

gateway_external_network_id = e828e54c-850a-4e74-80a8-8b79c6a285d8

external_network_bridge = br-ex-2



Before starting L3 agents, you need to create routers and external networks, then update the configuration files with UUID of external networks and start L3 agents.



Regards,

Subbareddy,

Persistent systems ltd.


From: Zhi-Wei Lu [mailto:zwlu at ucdavis.edu]
Sent: Monday, July 28, 2014 10:43 PM
To: openstack at lists.openstack.org<mailto:openstack at lists.openstack.org>
Subject: [Openstack] issue with multiple floating ip pools for neutron network

Hi all,

I have been testing multiple floating ip pools with neutron network on CentOS 6.5 with icehouse.  The single floating ip pool set up worked fine, but I encountered many problems setting up multiple floating IP pools.  I now enabled l3-agent with empty string (in /etc/neutron/l3-agent.ini) for multiple
gateway_external_network_id =
external_network_bridge =

The external bridges, br-ex and br-ex2, do not have the qg-* port at all, these qg-* interfaces are now in the br-int, therefore the floating ips do not work anymore.  Is there any way to move "qg" port from br-int to br-ex, and br-ex2?  I don't know how I ended up with such a mess, do I have to remove the network set up and reconfigure neutron?

Thank you very much for your help.

Zhi-Wei Lu
IET-CR-Network Operations Center
University of California, Davis
(530) 752-0155


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