[ 2198.226705][T15746] br0: port 1(dummy0) entered blocking state
[ 2198.226901][T15746] br0: port 1(dummy0) entered disabled state
[ 2198.227062][T15746] dummy0: entered allmulticast mode
[ 2198.228030][T15746] dummy0: entered promiscuous mode
[ 2198.251107][T15747] br0: port 1(dummy0) entered blocking state
[ 2198.251403][T15747] br0: port 1(dummy0) entered forwarding state
[ 2200.274154][   T12] dummy0: left allmulticast mode
[ 2200.277736][   T12] dummy0: left promiscuous mode
[ 2200.277974][   T12] br0: port 1(dummy0) entered disabled state