[ 3420.040382] br0: port 1(dummy0) entered disabled state [ 3420.190216] br0: port 1(dummy0) entered listening state [ 3421.510092] br0: port 1(dummy0) entered learning state [ 3421.653148] br0: port 1(dummy0) entered forwarding state [ 3421.802790] br0: port 1(dummy0) entered forwarding state [ 3437.191362] br0: port 1(dummy0) entered disabled state [ 3437.243574] br0: port 1(dummy0) entered blocking state [ 3437.243586] br0: port 1(dummy0) entered listening state [ 3457.315463] br0: port 1(dummy0) entered learning state [ 3477.796141] br0: port 1(dummy0) entered forwarding state [ 3477.796158] br0: topology change detected, propagating [ 3497.942180] br0: port 1(dummy0) entered disabled state [ 3498.000184] device dummy0 left promiscuous mode [ 3498.000223] br0: port 1(dummy0) entered disabled state