[ 3642.687974] br0: port 1(dummy0) entered disabled state [ 3642.839332] br0: port 1(dummy0) entered listening state [ 3644.177838] br0: port 1(dummy0) entered learning state [ 3644.328635] br0: port 1(dummy0) entered forwarding state [ 3644.480799] br0: port 1(dummy0) entered forwarding state [ 3659.898429] br0: port 1(dummy0) entered disabled state [ 3659.957092] br0: port 1(dummy0) entered blocking state [ 3659.957112] br0: port 1(dummy0) entered listening state [ 3680.000688] br0: port 1(dummy0) entered learning state [ 3700.482070] br0: port 1(dummy0) entered forwarding state [ 3700.482091] br0: topology change detected, propagating [ 3720.680691] br0: port 1(dummy0) entered disabled state [ 3720.738259] device dummy0 left promiscuous mode [ 3720.738305] br0: port 1(dummy0) entered disabled state