[ 2050.455401][T29536] br0: port 1(dummy0) entered blocking state
[ 2050.455597][T29536] br0: port 1(dummy0) entered disabled state
[ 2050.455763][T29536] dummy0: entered allmulticast mode
[ 2050.456636][T29536] dummy0: entered promiscuous mode
[ 2050.485388][T29537] br0: port 1(dummy0) entered blocking state
[ 2050.485601][T29537] br0: port 1(dummy0) entered forwarding state
[ 2052.447207][   T12] dummy0: left allmulticast mode
[ 2052.447364][   T12] dummy0: left promiscuous mode
[ 2052.447577][   T12] br0: port 1(dummy0) entered disabled state