[ 2106.708412][T14932] br0: port 1(dummy0) entered blocking state
[ 2106.708608][T14932] br0: port 1(dummy0) entered disabled state
[ 2106.708768][T14932] dummy0: entered allmulticast mode
[ 2106.709633][T14932] dummy0: entered promiscuous mode
[ 2106.737675][T14933] br0: port 1(dummy0) entered blocking state
[ 2106.737853][T14933] br0: port 1(dummy0) entered forwarding state
[ 2109.091577][   T12] dummy0: left allmulticast mode
[ 2109.091772][   T12] dummy0: left promiscuous mode
[ 2109.092011][   T12] br0: port 1(dummy0) entered disabled state