[ 2161.252562][  T998] br0: port 1(dummy0) entered blocking state
[ 2161.252761][  T998] br0: port 1(dummy0) entered disabled state
[ 2161.252940][  T998] dummy0: entered allmulticast mode
[ 2161.253917][  T998] dummy0: entered promiscuous mode
[ 2161.288990][  T999] br0: port 1(dummy0) entered blocking state
[ 2161.289268][  T999] br0: port 1(dummy0) entered forwarding state
[ 2163.342017][   T12] dummy0: left allmulticast mode
[ 2163.342313][   T12] dummy0: left promiscuous mode
[ 2163.342529][   T12] br0: port 1(dummy0) entered disabled state