[ 2129.908717][T21868] br0: port 1(dummy0) entered blocking state
[ 2129.908907][T21868] br0: port 1(dummy0) entered disabled state
[ 2129.909072][T21868] dummy0: entered allmulticast mode
[ 2129.909954][T21868] dummy0: entered promiscuous mode
[ 2129.934653][T21869] br0: port 1(dummy0) entered blocking state
[ 2129.934969][T21869] br0: port 1(dummy0) entered forwarding state
[ 2132.294348][   T12] dummy0: left allmulticast mode
[ 2132.295111][   T12] dummy0: left promiscuous mode
[ 2132.295641][   T12] br0: port 1(dummy0) entered disabled state