[ 2108.170331][ T2573] br0: port 1(dummy0) entered blocking state
[ 2108.170513][ T2573] br0: port 1(dummy0) entered disabled state
[ 2108.170675][ T2573] dummy0: entered allmulticast mode
[ 2108.172008][ T2573] dummy0: entered promiscuous mode
[ 2108.195619][ T2574] br0: port 1(dummy0) entered blocking state
[ 2108.196149][ T2574] br0: port 1(dummy0) entered forwarding state
[ 2110.452529][   T67] dummy0: left allmulticast mode
[ 2110.453549][   T67] dummy0: left promiscuous mode
[ 2110.453788][   T67] br0: port 1(dummy0) entered disabled state