[ 2162.016607][T28347] br0: port 1(dummy0) entered blocking state
[ 2162.016800][T28347] br0: port 1(dummy0) entered disabled state
[ 2162.016961][T28347] dummy0: entered allmulticast mode
[ 2162.018166][T28347] dummy0: entered promiscuous mode
[ 2162.049025][T28348] br0: port 1(dummy0) entered blocking state
[ 2162.049235][T28348] br0: port 1(dummy0) entered forwarding state
[ 2163.973581][   T70] dummy0: left allmulticast mode
[ 2163.974240][   T70] dummy0: left promiscuous mode
[ 2163.974703][   T70] br0: port 1(dummy0) entered disabled state