[ 2399.912919][T22378] br0: port 1(dummy0) entered blocking state
[ 2399.913283][T22378] br0: port 1(dummy0) entered disabled state
[ 2399.913607][T22378] dummy0: entered allmulticast mode
[ 2399.915139][T22378] dummy0: entered promiscuous mode
[ 2399.941601][T22379] br0: port 1(dummy0) entered blocking state
[ 2399.941988][T22379] br0: port 1(dummy0) entered forwarding state
[ 2402.400588][   T12] dummy0: left allmulticast mode
[ 2402.401605][   T12] dummy0: left promiscuous mode
[ 2402.401942][   T12] br0: port 1(dummy0) entered disabled state