[ 2195.672088][T30439] br0: port 1(dummy0) entered blocking state
[ 2195.672273][T30439] br0: port 1(dummy0) entered disabled state
[ 2195.672439][T30439] dummy0: entered allmulticast mode
[ 2195.673808][T30439] dummy0: entered promiscuous mode
[ 2195.697826][T30440] br0: port 1(dummy0) entered blocking state
[ 2195.698005][T30440] br0: port 1(dummy0) entered forwarding state
[ 2197.639311][   T12] dummy0: left allmulticast mode
[ 2197.640325][   T12] dummy0: left promiscuous mode
[ 2197.640576][   T12] br0: port 1(dummy0) entered disabled state