[ 1999.957064][T10346] br0: port 1(dummy0) entered blocking state
[ 1999.957300][T10346] br0: port 1(dummy0) entered disabled state
[ 1999.958009][T10346] dummy0: entered allmulticast mode
[ 1999.959049][T10346] dummy0: entered promiscuous mode
[ 1999.982814][T10347] br0: port 1(dummy0) entered blocking state
[ 1999.983168][T10347] br0: port 1(dummy0) entered forwarding state
[ 2001.987431][   T12] dummy0: left allmulticast mode
[ 2001.987769][   T12] dummy0: left promiscuous mode
[ 2001.988005][   T12] br0: port 1(dummy0) entered disabled state