[ 2513.723950][  T341] br0: port 1(dummy0) entered blocking state
[ 2513.724263][  T341] br0: port 1(dummy0) entered disabled state
[ 2513.724569][  T341] dummy0: entered allmulticast mode
[ 2513.725595][  T341] dummy0: entered promiscuous mode
[ 2513.759228][  T342] br0: port 1(dummy0) entered blocking state
[ 2513.759601][  T342] br0: port 1(dummy0) entered forwarding state
[ 2516.327629][   T70] dummy0: left allmulticast mode
[ 2516.328880][   T70] dummy0: left promiscuous mode
[ 2516.329251][   T70] br0: port 1(dummy0) entered disabled state