Hi, It's been a week since we are stuck in getting this setup working Any pointers on tools / document to move further would be really appreciated.
(currently we are lagging in getting our hands onto tools that can help tracing the packets inside OVS to and from VMs....) Thanks, Best Regards, Rekha From: Sreerekha Shenoy (sresheno) Sent: Thursday, June 20, 2013 6:19 PM To: openstack@lists.launchpad.net Subject: RE: Issues with openvswitch agent on Quantum/network node Hi, What are the good to know tools and networking concepts for me to be able to debug connectivity issues inside Openstack VLAN mode of OVS? Thanks, Best Regards, Rekha From: Sreerekha Shenoy (sresheno) Sent: Friday, June 14, 2013 2:23 PM To: openstack@lists.launchpad.net<mailto:openstack@lists.launchpad.net> Subject: Issues with openvswitch agent on Quantum/network node 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 tunnel 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@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@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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