[ 471.123202] br0: port 1(dummy0) entered disabled state [ 471.273437] br0: port 1(dummy0) entered listening state [ 472.601291] br0: port 1(dummy0) entered learning state [ 472.750902] br0: port 1(dummy0) entered forwarding state [ 472.901286] br0: port 1(dummy0) entered forwarding state [ 488.290303] br0: port 1(dummy0) entered disabled state [ 488.343689] br0: port 1(dummy0) entered blocking state [ 488.343703] br0: port 1(dummy0) entered listening state [ 508.772657] br0: port 1(dummy0) entered learning state [ 529.253312] br0: port 1(dummy0) entered forwarding state [ 529.253329] br0: topology change detected, propagating [ 549.033034] br0: port 1(dummy0) entered disabled state [ 549.090053] device dummy0 left promiscuous mode [ 549.090097] br0: port 1(dummy0) entered disabled state