[ 2302.853292][T23354] br0: port 1(dummy0) entered blocking state
[ 2302.853476][T23354] br0: port 1(dummy0) entered disabled state
[ 2302.853639][T23354] dummy0: entered allmulticast mode
[ 2302.854618][T23354] dummy0: entered promiscuous mode
[ 2302.880367][T23355] br0: port 1(dummy0) entered blocking state
[ 2302.880638][T23355] br0: port 1(dummy0) entered forwarding state
[ 2305.223415][   T12] dummy0: left allmulticast mode
[ 2305.224106][   T12] dummy0: left promiscuous mode
[ 2305.224378][   T12] br0: port 1(dummy0) entered disabled state