[ 2181.044246][T21332] br0: port 1(dummy0) entered blocking state
[ 2181.044442][T21332] br0: port 1(dummy0) entered disabled state
[ 2181.044607][T21332] dummy0: entered allmulticast mode
[ 2181.049231][T21332] dummy0: entered promiscuous mode
[ 2181.078444][T21333] br0: port 1(dummy0) entered blocking state
[ 2181.078720][T21333] br0: port 1(dummy0) entered forwarding state
[ 2183.477256][   T69] dummy0: left allmulticast mode
[ 2183.478285][   T69] dummy0: left promiscuous mode
[ 2183.478568][   T69] br0: port 1(dummy0) entered disabled state