[ 1839.150954][T15071] br0: port 1(dummy0) entered blocking state
[ 1839.151140][T15071] br0: port 1(dummy0) entered disabled state
[ 1839.151305][T15071] dummy0: entered allmulticast mode
[ 1839.152708][T15071] dummy0: entered promiscuous mode
[ 1839.176466][T15072] br0: port 1(dummy0) entered blocking state
[ 1839.176676][T15072] br0: port 1(dummy0) entered forwarding state
[ 1841.180315][   T12] dummy0: left allmulticast mode
[ 1841.180520][   T12] dummy0: left promiscuous mode
[ 1841.180749][   T12] br0: port 1(dummy0) entered disabled state