[ 2192.052079][T19969] br0: port 1(dummy0) entered blocking state
[ 2192.052262][T19969] br0: port 1(dummy0) entered disabled state
[ 2192.052422][T19969] dummy0: entered allmulticast mode
[ 2192.053990][T19969] dummy0: entered promiscuous mode
[ 2192.077210][T19970] br0: port 1(dummy0) entered blocking state
[ 2192.077527][T19970] br0: port 1(dummy0) entered forwarding state
[ 2194.100942][   T12] dummy0: left allmulticast mode
[ 2194.101888][   T12] dummy0: left promiscuous mode
[ 2194.102128][   T12] br0: port 1(dummy0) entered disabled state