[ 2401.994817][T32610] br0: port 1(dummy0) entered blocking state
[ 2401.995139][T32610] br0: port 1(dummy0) entered disabled state
[ 2401.995433][T32610] dummy0: entered allmulticast mode
[ 2401.996438][T32610] dummy0: entered promiscuous mode
[ 2402.027562][T32611] br0: port 1(dummy0) entered blocking state
[ 2402.028242][T32611] br0: port 1(dummy0) entered forwarding state
[ 2404.570177][   T12] dummy0: left allmulticast mode
[ 2404.570993][   T12] dummy0: left promiscuous mode
[ 2404.571694][   T12] br0: port 1(dummy0) entered disabled state