On 2/16/23 02:28, 张祖建 via discuss wrote: > Hi all, > I'm investigating packet drop during ovs restart/upgrade and found that the > Gevene interface genev_sys_6082 was deleted and recreated during ovs-vswitchd > starts up: > > > root@node1:/root# ip -c a show genev_sys_6081 > 17: genev_sys_6081: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65000 qdisc noqueue > master ovs-system state UNKNOWN group default qlen 1000 > link/ether fa:1e:c7:a8:da:49 brd ff:ff:ff:ff:ff:ff > root@node1:/root# ip monitor dev genev_sys_6081 > 17: genev_sys_6081: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65000 qdisc noqueue > state UNKNOWN group default > link/ether fa:1e:c7:a8:da:49 brd ff:ff:ff:ff:ff:ff > 17: genev_sys_6081: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65000 qdisc noqueue > state UNKNOWN group default > link/ether fa:1e:c7:a8:da:49 brd ff:ff:ff:ff:ff:ff > 17: genev_sys_6081: <BROADCAST,MULTICAST> mtu 65000 qdisc noqueue state DOWN > group default > link/ether fa:1e:c7:a8:da:49 brd ff:ff:ff:ff:ff:ff > Deleted 17: genev_sys_6081: <BROADCAST,MULTICAST> mtu 65000 qdisc noop state > DOWN group default > link/ether fa:1e:c7:a8:da:49 brd ff:ff:ff:ff:ff:ff > ^C > root@node1:/root# ip -c a show genev_sys_6081 > 18: genev_sys_6081: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65000 qdisc noqueue > master ovs-system state UNKNOWN group default qlen 1000 > link/ether 7a:b4:13:b8:c0:4f brd ff:ff:ff:ff:ff:ff > > > Is this behavior by design? How can I avoid tunnel interface recreation?
Hi. No, that should not happen in general. Ports should not be deleted and re-created on restart. What version of OVS you have? There was a bug in v2.15.0 that could cause this kind of behavior. Best regards, Ilya Maximets. _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
