[ 2124.752755][T17933] br0: port 1(dummy0) entered blocking state
[ 2124.752996][T17933] br0: port 1(dummy0) entered disabled state
[ 2124.753270][T17933] dummy0: entered allmulticast mode
[ 2124.754569][T17933] dummy0: entered promiscuous mode
[ 2124.777171][T17934] br0: port 1(dummy0) entered blocking state
[ 2124.777346][T17934] br0: port 1(dummy0) entered forwarding state
[ 2126.746247][   T12] dummy0: left allmulticast mode
[ 2126.747206][   T12] dummy0: left promiscuous mode
[ 2126.747434][   T12] br0: port 1(dummy0) entered disabled state