[ 2161.617540][T23970] br0: port 1(dummy0) entered blocking state
[ 2161.617839][T23970] br0: port 1(dummy0) entered disabled state
[ 2161.618103][T23970] dummy0: entered allmulticast mode
[ 2161.619061][T23970] dummy0: entered promiscuous mode
[ 2161.645383][T23971] br0: port 1(dummy0) entered blocking state
[ 2161.645705][T23971] br0: port 1(dummy0) entered forwarding state
[ 2164.117018][   T12] dummy0: left allmulticast mode
[ 2164.117332][   T12] dummy0: left promiscuous mode
[ 2164.118372][   T12] br0: port 1(dummy0) entered disabled state