[ 2180.264398][T24239] br0: port 1(dummy0) entered blocking state
[ 2180.264706][T24239] br0: port 1(dummy0) entered disabled state
[ 2180.264982][T24239] dummy0: entered allmulticast mode
[ 2180.266093][T24239] dummy0: entered promiscuous mode
[ 2180.300068][T24240] br0: port 1(dummy0) entered blocking state
[ 2180.300623][T24240] br0: port 1(dummy0) entered forwarding state
[ 2182.832230][   T12] dummy0: left allmulticast mode
[ 2182.832744][   T12] dummy0: left promiscuous mode
[ 2182.833071][   T12] br0: port 1(dummy0) entered disabled state