[ 2836.249658] br0: port 1(dummy0) entered disabled state [ 2836.365769] br0: port 1(dummy0) entered listening state [ 2837.551968] br0: port 1(dummy0) entered learning state [ 2837.667797] br0: port 1(dummy0) entered forwarding state [ 2837.783696] br0: port 1(dummy0) entered forwarding state [ 2853.086440] br0: port 1(dummy0) entered disabled state [ 2853.137221] br0: port 1(dummy0) entered blocking state [ 2853.138931] br0: port 1(dummy0) entered listening state [ 2873.649239] br0: port 1(dummy0) entered learning state [ 2894.129577] br0: port 1(dummy0) entered forwarding state [ 2894.131462] br0: topology change detected, propagating [ 2913.667614] br0: port 1(dummy0) entered disabled state [ 2913.718550] device dummy0 left promiscuous mode [ 2913.720245] br0: port 1(dummy0) entered disabled state