[ 2112.689106][T30154] br0: port 1(dummy0) entered blocking state
[ 2112.689454][T30154] br0: port 1(dummy0) entered disabled state
[ 2112.689786][T30154] dummy0: entered allmulticast mode
[ 2112.690862][T30154] dummy0: entered promiscuous mode
[ 2112.723869][T30155] br0: port 1(dummy0) entered blocking state
[ 2112.724177][T30155] br0: port 1(dummy0) entered forwarding state
[ 2115.230316][   T12] dummy0: left allmulticast mode
[ 2115.230628][   T12] dummy0: left promiscuous mode
[ 2115.230956][   T12] br0: port 1(dummy0) entered disabled state