[ 2164.285155][T22752] br0: port 1(dummy0) entered blocking state
[ 2164.285534][T22752] br0: port 1(dummy0) entered disabled state
[ 2164.285871][T22752] dummy0: entered allmulticast mode
[ 2164.287535][T22752] dummy0: entered promiscuous mode
[ 2164.318099][T22753] br0: port 1(dummy0) entered blocking state
[ 2164.318624][T22753] br0: port 1(dummy0) entered forwarding state
[ 2166.762109][   T12] dummy0: left allmulticast mode
[ 2166.763399][   T12] dummy0: left promiscuous mode
[ 2166.763942][   T12] br0: port 1(dummy0) entered disabled state