[ 244.453992] br0: port 1(dummy0) entered disabled state [ 244.527816] br0: port 1(dummy0) entered listening state [ 245.654574] br0: port 1(dummy0) entered learning state [ 245.731050] br0: port 1(dummy0) entered forwarding state [ 245.808547] br0: port 1(dummy0) entered forwarding state [ 261.027475] br0: port 1(dummy0) entered disabled state [ 261.063959] br0: port 1(dummy0) entered blocking state [ 261.063964] br0: port 1(dummy0) entered listening state [ 281.677346] br0: port 1(dummy0) entered learning state [ 302.157381] br0: port 1(dummy0) entered forwarding state [ 302.157405] br0: topology change detected, propagating [ 321.433827] br0: port 1(dummy0) entered disabled state [ 321.461625] device dummy0 left promiscuous mode [ 321.461660] br0: port 1(dummy0) entered disabled state