[ 1838.706303][T12115] br0: port 1(dummy0) entered blocking state
[ 1838.706501][T12115] br0: port 1(dummy0) entered disabled state
[ 1838.706689][T12115] dummy0: entered allmulticast mode
[ 1838.707748][T12115] dummy0: entered promiscuous mode
[ 1838.731667][T12116] br0: port 1(dummy0) entered blocking state
[ 1838.732024][T12116] br0: port 1(dummy0) entered forwarding state
[ 1840.508440][   T12] dummy0: left allmulticast mode
[ 1840.508608][   T12] dummy0: left promiscuous mode
[ 1840.508843][   T12] br0: port 1(dummy0) entered disabled state