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?
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