[ 2251.946342][ T7461] br0: port 1(dummy0) entered blocking state
[ 2251.946570][ T7461] br0: port 1(dummy0) entered disabled state
[ 2251.946783][ T7461] dummy0: entered allmulticast mode
[ 2251.947863][ T7461] dummy0: entered promiscuous mode
[ 2251.979924][ T7462] br0: port 1(dummy0) entered blocking state
[ 2251.980563][ T7462] br0: port 1(dummy0) entered forwarding state
[ 2254.326368][   T70] dummy0: left allmulticast mode
[ 2254.326924][   T70] dummy0: left promiscuous mode
[ 2254.327331][   T70] br0: port 1(dummy0) entered disabled state