[ 2224.536621][T28243] br0: port 1(dummy0) entered blocking state
[ 2224.536952][T28243] br0: port 1(dummy0) entered disabled state
[ 2224.537254][T28243] dummy0: entered allmulticast mode
[ 2224.538303][T28243] dummy0: entered promiscuous mode
[ 2224.570168][T28244] br0: port 1(dummy0) entered blocking state
[ 2224.570485][T28244] br0: port 1(dummy0) entered forwarding state
[ 2227.052065][   T71] dummy0: left allmulticast mode
[ 2227.052856][   T71] dummy0: left promiscuous mode
[ 2227.053230][   T71] br0: port 1(dummy0) entered disabled state