[ 2146.392857][T20460] br0: port 1(dummy0) entered blocking state
[ 2146.393217][T20460] br0: port 1(dummy0) entered disabled state
[ 2146.393560][T20460] dummy0: entered allmulticast mode
[ 2146.394731][T20460] dummy0: entered promiscuous mode
[ 2146.431057][T20461] br0: port 1(dummy0) entered blocking state
[ 2146.431573][T20461] br0: port 1(dummy0) entered forwarding state
[ 2148.913754][   T70] dummy0: left allmulticast mode
[ 2148.914442][   T70] dummy0: left promiscuous mode
[ 2148.914777][   T70] br0: port 1(dummy0) entered disabled state