[ 2167.458521][T22971] br0: port 1(dummy0) entered blocking state
[ 2167.458871][T22971] br0: port 1(dummy0) entered disabled state
[ 2167.459217][T22971] dummy0: entered allmulticast mode
[ 2167.460269][T22971] dummy0: entered promiscuous mode
[ 2167.492690][T22972] br0: port 1(dummy0) entered blocking state
[ 2167.493018][T22972] br0: port 1(dummy0) entered forwarding state
[ 2169.841106][   T12] dummy0: left allmulticast mode
[ 2169.841401][   T12] dummy0: left promiscuous mode
[ 2169.841708][   T12] br0: port 1(dummy0) entered disabled state