[ 1915.059519][T23334] br0: port 1(dummy0) entered blocking state
[ 1915.059705][T23334] br0: port 1(dummy0) entered disabled state
[ 1915.059879][T23334] dummy0: entered allmulticast mode
[ 1915.060730][T23334] dummy0: entered promiscuous mode
[ 1915.082276][T23335] br0: port 1(dummy0) entered blocking state
[ 1915.082688][T23335] br0: port 1(dummy0) entered forwarding state
[ 1917.066065][   T70] dummy0: left allmulticast mode
[ 1917.067146][   T70] dummy0: left promiscuous mode
[ 1917.067397][   T70] br0: port 1(dummy0) entered disabled state