https://jira.opendaylight.org This file is an XML representation of an issue en-us 8.20.10 820010 22-06-2022 https://jira.opendaylight.org/browse/NETVIRT-629 netvirt <p>Summary:<br/> ARP Responder Flows are not removed from compute hosts when an instance is deleted. When an instance is attached the ARP Responder Flows are added to the OVS on both controller and compute hosts. When the instance is the deleted the ARP Responder Flows are removed from the controller but not from the compute hosts.</p> <p>We expect the ARP Responder Flows to be removed from the compute hosts also.</p> <p>The consequence of this is that if the instance is relaunched with the same ip address and another instance tries to reach it the action will fail as the old mac address of the instance is still in the ARP Responder flows.</p> <p>This was seen on:<br/> Boron 1.3.0.<br/> Open vSwitch 2.4.1<br/> OpenFlow versions 0x1:0x4</p> <p>Kernel:<br/> Linux version 3.13.0-116-generic (buildd@lcy01-03) (gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3) ) #163-Ubuntu SMP Fri Mar 31 14:13:22 UTC 2017</p> <p>Operating System: Linux<br/> Platform: Other</p> NETVIRT-629

ARP Responder Flows are not removed from compute hosts when an instance is deleted.

Bug Resolved Won't Do Unassigned Mark Donovan Thu, 20 Apr 2017 14:17:00 +0000 Fri, 9 Mar 2018 18:21:33 +0000 Tue, 3 Oct 2017 23:47:52 +0000 Boron 0 4 <p>OpenFlow world, moving to OFP for further routing.</p> <p>Looks related to NetVirt rather than OpenFlow Plugin.</p> <p>Hi Mark,</p> <p>Do you see the problem in legacy or new netvirt? What are the ARP Responder flows that should be deleted?</p> <p>Thanks, Vinh</p> <p>Mark,</p> <p> What feature did you install on ODL?</p> <p>Hi Vinh &amp; Venkatrangan,<br/> I don't think we installed a new netvirt.<br/> The ARP responder flow are added to the controller node and compute node. The hold the mac addresses of instances launched on that particular node. Is there something specific that you need to know about them.</p> <p>"What feature did you install on ODL?" We have installed ODL in openstack and use it to manage our networking.</p> <p>// Mark</p> <p>Hi Mark,</p> <p>We would like to confirm whether this is an issue with:</p> <ul class="alternate" type="square"> <li>Legacy Netvirt (feature:install odl-ovsdb-openstack) OR</li> <li>New Netvirt (feature:install odl-netvirt-openstack)</li> </ul> <p>so that we can prioritize the fix. The 'Component' field of this bug report is set to 'General', meaning new netvirt. But it seems to me that this issue is observed in Legacy netvirt. If it is I will change the 'Component' field accordingly</p> <p>Thanks, Vinh</p> <p>Updated component to Legacy</p> Development External issue ID 8263 External issue URL Rank 0|i01szb: