[ 2191.005228][T24297] br0: port 1(dummy0) entered blocking state
[ 2191.005461][T24297] br0: port 1(dummy0) entered disabled state
[ 2191.005676][T24297] dummy0: entered allmulticast mode
[ 2191.007291][T24297] dummy0: entered promiscuous mode
[ 2191.049493][T24298] br0: port 1(dummy0) entered blocking state
[ 2191.049756][T24298] br0: port 1(dummy0) entered forwarding state
[ 2192.989727][   T12] dummy0: left allmulticast mode
[ 2192.990548][   T12] dummy0: left promiscuous mode
[ 2192.990784][   T12] br0: port 1(dummy0) entered disabled state