[ 1916.866930][T29962] br0: port 1(dummy0) entered blocking state
[ 1916.867127][T29962] br0: port 1(dummy0) entered disabled state
[ 1916.867299][T29962] dummy0: entered allmulticast mode
[ 1916.868735][T29962] dummy0: entered promiscuous mode
[ 1916.888437][T29963] br0: port 1(dummy0) entered blocking state
[ 1916.888905][T29963] br0: port 1(dummy0) entered forwarding state
[ 1918.730931][   T12] dummy0: left allmulticast mode
[ 1918.731231][   T12] dummy0: left promiscuous mode
[ 1918.731444][   T12] br0: port 1(dummy0) entered disabled state