[ 2152.015419][T11496] br0: port 1(dummy0) entered blocking state
[ 2152.015617][T11496] br0: port 1(dummy0) entered disabled state
[ 2152.015780][T11496] dummy0: entered allmulticast mode
[ 2152.017177][T11496] dummy0: entered promiscuous mode
[ 2152.045964][T11497] br0: port 1(dummy0) entered blocking state
[ 2152.046236][T11497] br0: port 1(dummy0) entered forwarding state
[ 2154.089099][   T71] dummy0: left allmulticast mode
[ 2154.090206][   T71] dummy0: left promiscuous mode
[ 2154.090449][   T71] br0: port 1(dummy0) entered disabled state