[ 248.589901] br0: port 1(dummy0) entered disabled state [ 248.733290] br0: port 1(dummy0) entered listening state [ 249.842431] br0: port 1(dummy0) entered learning state [ 249.907553] br0: port 1(dummy0) entered forwarding state [ 249.969702] br0: port 1(dummy0) entered forwarding state [ 265.136693] br0: port 1(dummy0) entered disabled state [ 265.171660] br0: port 1(dummy0) entered blocking state [ 265.171667] br0: port 1(dummy0) entered listening state [ 285.473402] br0: port 1(dummy0) entered learning state [ 305.953509] br0: port 1(dummy0) entered forwarding state [ 305.953539] br0: topology change detected, propagating [ 325.450619] br0: port 1(dummy0) entered disabled state [ 325.474367] device dummy0 left promiscuous mode [ 325.474388] br0: port 1(dummy0) entered disabled state