[ 1912.472653][T29557] br0: port 1(dummy0) entered blocking state
[ 1912.472893][T29557] br0: port 1(dummy0) entered disabled state
[ 1912.473107][T29557] dummy0: entered allmulticast mode
[ 1912.474040][T29557] dummy0: entered promiscuous mode
[ 1912.502292][T29558] br0: port 1(dummy0) entered blocking state
[ 1912.502475][T29558] br0: port 1(dummy0) entered forwarding state
[ 1914.442593][   T69] dummy0: left allmulticast mode
[ 1914.442802][   T69] dummy0: left promiscuous mode
[ 1914.443018][   T69] br0: port 1(dummy0) entered disabled state