[ 2012.097427][T17822] br0: port 1(dummy0) entered blocking state
[ 2012.097653][T17822] br0: port 1(dummy0) entered disabled state
[ 2012.097868][T17822] dummy0: entered allmulticast mode
[ 2012.098807][T17822] dummy0: entered promiscuous mode
[ 2012.125089][T17823] br0: port 1(dummy0) entered blocking state
[ 2012.125542][T17823] br0: port 1(dummy0) entered forwarding state
[ 2014.085717][   T12] dummy0: left allmulticast mode
[ 2014.086383][   T12] dummy0: left promiscuous mode
[ 2014.086968][   T12] br0: port 1(dummy0) entered disabled state