[ 2065.127405][T28820] br0: port 1(dummy0) entered blocking state
[ 2065.127598][T28820] br0: port 1(dummy0) entered disabled state
[ 2065.127767][T28820] dummy0: entered allmulticast mode
[ 2065.128713][T28820] dummy0: entered promiscuous mode
[ 2065.158866][T28821] br0: port 1(dummy0) entered blocking state
[ 2065.159142][T28821] br0: port 1(dummy0) entered forwarding state
[ 2067.125824][   T12] dummy0: left allmulticast mode
[ 2067.126104][   T12] dummy0: left promiscuous mode
[ 2067.126302][   T12] br0: port 1(dummy0) entered disabled state