OpenDaylight JIRA https://jira.opendaylight.org This file is an XML representation of an issue en-us 8.20.10 820010 22-06-2022 [NETVIRT-274] Missing router interface flow in table 19 https://jira.opendaylight.org/browse/NETVIRT-274 netvirt <p>I have created a topology with two routers connected to an external-network. each router is connected to two private networks, each private network has one subnet and two VMs. In addition, I have two compute nodes.</p> <p>I can see that one of the 4 router_interface flows is missing from table 19, on both computes, which causes ping for both vms on this network to fail.</p> <p>i'm attaching karaf log , ovs flows dump, and some of the karaf models.</p> <p>The missing router_interface flow has ip 71.0.0.49 and MAC fa:16:3e:c6:d9:1b.</p> <p>Operating System: All<br/> Platform: All</p> NETVIRT-274 Missing router interface flow in table 19 Bug Resolved Done Unassigned Tomer Pearl Tue, 15 Nov 2016 09:59:46 +0000 Thu, 19 Oct 2017 21:28:19 +0000 Wed, 14 Dec 2016 14:59:09 +0000 Boron General 0 2 <p>Attachment logs.rar has been added with description: karaf, ovs and rest logs</p> <p>The root cause might be that ODL got an ARP request with srcip=router_interface_ip, and in the current code this will override the isSubnet entry on the router interface.</p> <p>If this is indeed the case, the following commit may solve this bug:<br/> <a href="http://git.opendaylight.org/gerrit/#/c/47965" class="external-link" target="_blank" rel="nofollow noopener">http://git.opendaylight.org/gerrit/#/c/47965</a></p> <p>Assuming my analysis above is correct, this has probably been solved by <a href="https://git.opendaylight.org/gerrit/#/c/48054/" class="external-link" target="_blank" rel="nofollow noopener">https://git.opendaylight.org/gerrit/#/c/48054/</a><br/> This commit restricts ARP cache learning to non-neutron ports (which should make sure the router interface entry is not overridden).</p> <p>If this somehow reoccurs (couldn't reproduce myself) - Please reopen and include the vpn-port-ip-to-port model</p> Development External issue ID 7187 External issue URL Rank 0|i01qsf: