[ 1847.349531][T15558] br0: port 1(dummy0) entered blocking state
[ 1847.349726][T15558] br0: port 1(dummy0) entered disabled state
[ 1847.349884][T15558] dummy0: entered allmulticast mode
[ 1847.350734][T15558] dummy0: entered promiscuous mode
[ 1847.378322][T15559] br0: port 1(dummy0) entered blocking state
[ 1847.378532][T15559] br0: port 1(dummy0) entered forwarding state
[ 1849.350875][   T70] dummy0: left allmulticast mode
[ 1849.351078][   T70] dummy0: left promiscuous mode
[ 1849.351323][   T70] br0: port 1(dummy0) entered disabled state