[ 2220.691440][T21352] br0: port 1(dummy0) entered blocking state
[ 2220.691671][T21352] br0: port 1(dummy0) entered disabled state
[ 2220.691894][T21352] dummy0: entered allmulticast mode
[ 2220.692936][T21352] dummy0: entered promiscuous mode
[ 2220.721510][T21353] br0: port 1(dummy0) entered blocking state
[ 2220.721763][T21353] br0: port 1(dummy0) entered forwarding state
[ 2222.593353][   T69] dummy0: left allmulticast mode
[ 2222.594487][   T69] dummy0: left promiscuous mode
[ 2222.596552][   T69] br0: port 1(dummy0) entered disabled state