[ 2328.162443][T21008] br0: port 1(dummy0) entered blocking state
[ 2328.162759][T21008] br0: port 1(dummy0) entered disabled state
[ 2328.163037][T21008] dummy0: entered allmulticast mode
[ 2328.164624][T21008] dummy0: entered promiscuous mode
[ 2328.205915][T21009] br0: port 1(dummy0) entered blocking state
[ 2328.206259][T21009] br0: port 1(dummy0) entered forwarding state
[ 2330.660413][   T71] dummy0: left allmulticast mode
[ 2330.660751][   T71] dummy0: left promiscuous mode
[ 2330.661092][   T71] br0: port 1(dummy0) entered disabled state