[ 2293.780175][T29786] br0: port 1(dummy0) entered blocking state
[ 2293.780369][T29786] br0: port 1(dummy0) entered disabled state
[ 2293.780529][T29786] dummy0: entered allmulticast mode
[ 2293.781410][T29786] dummy0: entered promiscuous mode
[ 2293.809269][T29787] br0: port 1(dummy0) entered blocking state
[ 2293.809926][T29787] br0: port 1(dummy0) entered forwarding state
[ 2296.070886][   T12] dummy0: left allmulticast mode
[ 2296.071179][   T12] dummy0: left promiscuous mode
[ 2296.071405][   T12] br0: port 1(dummy0) entered disabled state