[lxc-users] LXC 2.16 - vxlan.<iface> <MAC> migrated from <eth0> to <eth1>

[Ron Kelley]

Greetings all,

Trying to isolate a condition whereby a container providing firewall services seems to stop processing traffic for a short time.  We keep getting the below information in /var/log/syslog of the server running the firewall.  The IP addresses shown match the network interfaces of the remote LXD server running the web server.  These IPs are for the server itself, and not the container IP

Sep 24 15:10:25 LXD-Server-04 kernel: [144272.412154] vxlan.1104: 00:11:22:aa:66:a3 migrated from 10.250.1.21  to 172.18.22.21
Sep 24 15:10:26 LXD-Server-04 kernel: [144272.412154] vxlan.1104: 00:11:22:aa:66:a3 migrated from 172.18.22.21 to 10.250.1.21 
Sep 24 15:10:27 LXD-Server-04 kernel: [144272.412154] vxlan.1104: 00:11:22:aa:66:a3 migrated from 10.250.1.21  to 172.18.22.21
Sep 24 15:10:28 LXD-Server-04 kernel: [144272.412154] vxlan.1104: 00:11:22:aa:66:a3 migrated from 172.18.22.21 to 10.250.1.21 
Sep 24 15:10:29 LXD-Server-04 kernel: [144272.412154] vxlan.1104: 00:11:22:aa:66:a3 migrated from 10.250.1.21  to 172.18.22.21
Sep 24 15:10:30 LXD-Server-04 kernel: [144272.412154] vxlan.1104: 00:11:22:aa:66:a3 migrated from 172.18.22.21 to 10.250.1.21 
Sep 24 15:10:31 LXD-Server-04 kernel: [144272.412154] vxlan.1104: 00:11:22:aa:66:a3 migrated from 10.250.1.21  to 172.18.22.21
Sep 24 15:10:32 LXD-Server-04 kernel: [144272.412154] vxlan.1104: 00:11:22:aa:66:a3 migrated from 172.18.22.21 to 10.250.1.21 

Notice how they migrate from one interface to another and then back again.  Any idea as to why these messages are getting logged?

Thanks.

-Ron