[ 1816.301872][ T2480] br0: port 1(dummy0) entered blocking state
[ 1816.302078][ T2480] br0: port 1(dummy0) entered disabled state
[ 1816.302256][ T2480] dummy0: entered allmulticast mode
[ 1816.303295][ T2480] dummy0: entered promiscuous mode
[ 1816.329680][ T2481] br0: port 1(dummy0) entered blocking state
[ 1816.329980][ T2481] br0: port 1(dummy0) entered forwarding state
[ 1818.189227][   T71] dummy0: left allmulticast mode
[ 1818.189525][   T71] dummy0: left promiscuous mode
[ 1818.189750][   T71] br0: port 1(dummy0) entered disabled state