[ 2182.702563][T23494] br0: port 1(dummy0) entered blocking state
[ 2182.702751][T23494] br0: port 1(dummy0) entered disabled state
[ 2182.702911][T23494] dummy0: entered allmulticast mode
[ 2182.703780][T23494] dummy0: entered promiscuous mode
[ 2182.732932][T23495] br0: port 1(dummy0) entered blocking state
[ 2182.733106][T23495] br0: port 1(dummy0) entered forwarding state
[ 2184.715257][   T12] dummy0: left allmulticast mode
[ 2184.715441][   T12] dummy0: left promiscuous mode
[ 2184.715663][   T12] br0: port 1(dummy0) entered disabled state