[ 2323.702082][T18974] br0: port 1(dummy0) entered blocking state
[ 2323.702430][T18974] br0: port 1(dummy0) entered disabled state
[ 2323.702784][T18974] dummy0: entered allmulticast mode
[ 2323.703835][T18974] dummy0: entered promiscuous mode
[ 2323.737949][T18975] br0: port 1(dummy0) entered blocking state
[ 2323.738357][T18975] br0: port 1(dummy0) entered forwarding state
[ 2326.110293][   T12] dummy0: left allmulticast mode
[ 2326.111369][   T12] dummy0: left promiscuous mode
[ 2326.111691][   T12] br0: port 1(dummy0) entered disabled state