[ 2043.383853][T11833] br0: port 1(dummy0) entered blocking state
[ 2043.384039][T11833] br0: port 1(dummy0) entered disabled state
[ 2043.384213][T11833] dummy0: entered allmulticast mode
[ 2043.385201][T11833] dummy0: entered promiscuous mode
[ 2043.414369][T11834] br0: port 1(dummy0) entered blocking state
[ 2043.414809][T11834] br0: port 1(dummy0) entered forwarding state
[ 2045.465287][   T12] dummy0: left allmulticast mode
[ 2045.466133][   T12] dummy0: left promiscuous mode
[ 2045.466369][   T12] br0: port 1(dummy0) entered disabled state