[ 2174.371516][T26974] br0: port 1(dummy0) entered blocking state
[ 2174.371704][T26974] br0: port 1(dummy0) entered disabled state
[ 2174.371867][T26974] dummy0: entered allmulticast mode
[ 2174.372905][T26974] dummy0: entered promiscuous mode
[ 2174.400789][T26975] br0: port 1(dummy0) entered blocking state
[ 2174.401036][T26975] br0: port 1(dummy0) entered forwarding state
[ 2176.279764][   T69] dummy0: left allmulticast mode
[ 2176.280639][   T69] dummy0: left promiscuous mode
[ 2176.280915][   T69] br0: port 1(dummy0) entered disabled state