[ 1887.626163][T13286] br0: port 1(dummy0) entered blocking state
[ 1887.626394][T13286] br0: port 1(dummy0) entered disabled state
[ 1887.626621][T13286] dummy0: entered allmulticast mode
[ 1887.628216][T13286] dummy0: entered promiscuous mode
[ 1887.656284][T13287] br0: port 1(dummy0) entered blocking state
[ 1887.656719][T13287] br0: port 1(dummy0) entered forwarding state
[ 1889.625447][   T12] dummy0: left allmulticast mode
[ 1889.626400][   T12] dummy0: left promiscuous mode
[ 1889.626642][   T12] br0: port 1(dummy0) entered disabled state