[ 2199.055257][T28035] br0: port 1(dummy0) entered blocking state
[ 2199.055463][T28035] br0: port 1(dummy0) entered disabled state
[ 2199.055640][T28035] dummy0: entered allmulticast mode
[ 2199.056846][T28035] dummy0: entered promiscuous mode
[ 2199.078273][T28036] br0: port 1(dummy0) entered blocking state
[ 2199.078565][T28036] br0: port 1(dummy0) entered forwarding state
[ 2201.100754][   T74] dummy0: left allmulticast mode
[ 2201.101095][   T74] dummy0: left promiscuous mode
[ 2201.101365][   T74] br0: port 1(dummy0) entered disabled state