[ 1916.212404][T23224] br0: port 1(dummy0) entered blocking state
[ 1916.212619][T23224] br0: port 1(dummy0) entered disabled state
[ 1916.212780][T23224] dummy0: entered allmulticast mode
[ 1916.213740][T23224] dummy0: entered promiscuous mode
[ 1916.236475][T23225] br0: port 1(dummy0) entered blocking state
[ 1916.236756][T23225] br0: port 1(dummy0) entered forwarding state
[ 1918.178380][   T12] dummy0: left allmulticast mode
[ 1918.179388][   T12] dummy0: left promiscuous mode
[ 1918.179613][   T12] br0: port 1(dummy0) entered disabled state