[ 1916.949089][T29309] br0: port 1(dummy0) entered blocking state
[ 1916.949296][T29309] br0: port 1(dummy0) entered disabled state
[ 1916.949485][T29309] dummy0: entered allmulticast mode
[ 1916.950549][T29309] dummy0: entered promiscuous mode
[ 1916.969880][T29310] br0: port 1(dummy0) entered blocking state
[ 1916.970558][T29310] br0: port 1(dummy0) entered forwarding state
[ 1918.722330][   T69] dummy0: left allmulticast mode
[ 1918.725438][   T69] dummy0: left promiscuous mode
[ 1918.725723][   T69] br0: port 1(dummy0) entered disabled state