[ 438.591270] br0: port 1(dummy0) entered blocking state [ 438.591960] br0: port 1(dummy0) entered disabled state [ 438.594177] device dummy0 entered promiscuous mode [ 438.664470] br0: port 1(dummy0) entered blocking state [ 438.665198] br0: port 1(dummy0) entered forwarding state [ 438.991284] br0: port 1(dummy0) entered disabled state [ 439.108229] device dummy0 left promiscuous mode [ 439.108954] br0: port 1(dummy0) entered disabled state