[ 2158.719363][T29636] br0: port 1(dummy0) entered blocking state
[ 2158.719679][T29636] br0: port 1(dummy0) entered disabled state
[ 2158.719975][T29636] dummy0: entered allmulticast mode
[ 2158.720981][T29636] dummy0: entered promiscuous mode
[ 2158.754001][T29637] br0: port 1(dummy0) entered blocking state
[ 2158.754325][T29637] br0: port 1(dummy0) entered forwarding state
[ 2161.265201][   T12] dummy0: left allmulticast mode
[ 2161.265522][   T12] dummy0: left promiscuous mode
[ 2161.266864][   T12] br0: port 1(dummy0) entered disabled state