[ 2163.068398][T17761] br0: port 1(dummy0) entered blocking state
[ 2163.068769][T17761] br0: port 1(dummy0) entered disabled state
[ 2163.069108][T17761] dummy0: entered allmulticast mode
[ 2163.070169][T17761] dummy0: entered promiscuous mode
[ 2163.097775][T17762] br0: port 1(dummy0) entered blocking state
[ 2163.098084][T17762] br0: port 1(dummy0) entered forwarding state
[ 2165.613397][   T12] dummy0: left allmulticast mode
[ 2165.613731][   T12] dummy0: left promiscuous mode
[ 2165.614068][   T12] br0: port 1(dummy0) entered disabled state