[ 2470.988573] br0: port 1(dummy0) entered disabled state [ 2471.111966] br0: port 1(dummy0) entered listening state [ 2472.360653] br0: port 1(dummy0) entered learning state [ 2472.496059] br0: port 1(dummy0) entered forwarding state [ 2472.628538] br0: port 1(dummy0) entered forwarding state [ 2487.964218] br0: port 1(dummy0) entered disabled state [ 2488.041189] br0: port 1(dummy0) entered blocking state [ 2488.041856] br0: port 1(dummy0) entered listening state [ 2508.553322] br0: port 1(dummy0) entered learning state [ 2529.032653] br0: port 1(dummy0) entered forwarding state [ 2529.033544] br0: topology change detected, propagating [ 2548.646086] br0: port 1(dummy0) entered disabled state [ 2548.722887] device dummy0 left promiscuous mode [ 2548.723528] br0: port 1(dummy0) entered disabled state