[Openstack] Issues with openvswitch agent on Quantum/network node
Sreerekha Shenoy (sresheno)
sresheno at cisco.com
Fri Jun 14 08:53:50 UTC 2013
Hi,
I have a multi node grizzly setup using the following guide:
https://github.com/mseknibilel/OpenStack-Grizzly-Install-Guide/blob/OVS_MultiNode/OpenStack_Grizzly_Install_Guide.rst
My network topology is as attached and is using GRE tunel based VLAN.
I have VMs spawning on compute for cirros images.
However, inter-VM ping works (e.g. 50.50.1.4 can ping 50.50.1.5), but the following DON'T work:
a) VM cannot ping 50.50.1.1
b) VM cannot ping Compute ETH1 (data n/w) , 10.20.20.53
c) VM cannot be reachable from IP Namespace either (ip netns exec qrouter-xxxx ping 50.50.1.4 does NOT work)
Apart from the same, my network node has the following issue AFTER a reboot:
· On network node the following agent is not running i.e. "quantum-plugin-openvswitch-agent"
· Logs of this agent indicates it needs the plugin upgrade....dont have the precise error log..
o ovs-vswitchd.log indicates the following:
§ Apr 16 22:08:39|00482|netdev|WARN|Dropped 233 log messages in last 12 seconds (most recently, 1 seconds ago) due to excessive rate
§ Apr 16 22:08:39|00483|netdev|WARN|failed to get flags for network device qr-12091c58-8a: No such device
§ Apr 16 22:08:43|00484|netdev_linux|WARN|Dropped 35 log messages in last 15 seconds (most recently, 5 seconds ago) due to excessive rate
· The version of OSK-plugin-ovs-agent is 2013.1.1-0ubuntu1
· The result of the above being that "br-tun DOES NOT have gre-2 / gre-1 port on it" for both compute and network..
Please let me know what could be done to:
1. get the ovs-agent running on compute
2. have VMs pingable
================================================================================================================
compute Node output:
root at computenode:~# ovs-vsctl show
4aad5da2-861d-4190-a50b-37dfc5ca237a
Bridge br-tun
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
Port br-tun
Interface br-tun
type: internal
Bridge br-int
Port "qvo47a58f32-be"
Interface "qvo47a58f32-be"
Port "qvo19e7cd4c-c0"
tag: 1
Interface "qvo19e7cd4c-c0"
Port "qvobaa01ac1-69"
tag: 1
Interface "qvobaa01ac1-69"
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Port br-int
Interface br-int
type: internal
ovs_version: "1.4.0+build0"
================================================================================================================
Network node output:
root at networknode:~# ovs-vsctl show
9e17bb8c-d69d-48ab-9333-b22447c0c268
Bridge br-tun
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
Port br-tun
Interface br-tun
type: internal
Bridge br-int
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Port br-int
Interface br-int
type: internal
Port "qr-a7ab3f7c-8e"
Interface "qr-a7ab3f7c-8e"
type: internal
Port "tap6a322215-f0"
tag: 1
Interface "tap6a322215-f0"
type: internal
Bridge br-ex
Port br-ex
Interface br-ex
type: internal
Port "qg-1d552cbd-a0"
Interface "qg-1d552cbd-a0"
type: internal
Port "eth2"
Interface "eth2"
ovs_version: "1.4.0+build0"
Thanks and Regards,
Rashmi S N
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