Contents 27spanning-tree mode . . . . . . . . . . . . . . . . 754spanning-tree mst configuration . . . . . . . . . . 756spanning-tree mst cost . . . . . . . . . . . . . . . 757spanning-tree mst port-priority. . . . . . . . . . . 758spanning-tree mst priority . . . . . . . . . . . . . 759spanning-tree portfast . . . . . . . . . . . . . . . 760spanning-tree portfast bpdufilter default. . . . . . 761spanning-tree portfast default . . . . . . . . . . . 762spanning-tree port-priority (Interface Configuration) 763spanning-tree priority. . . . . . . . . . . . . . . . 764spanning-tree tcnguard . . . . . . . . . . . . . . 765spanning-tree transmit hold-count . . . . . . . . . 766spanning-tree uplinkfast . . . . . . . . . . . . . . 766spanning-tree vlan . . . . . . . . . . . . . . . . . 768spanning-tree vlan forward-time . . . . . . . . . . 769spanning-tree vlan hello-time . . . . . . . . . . . 770spanning-tree vlan max-age . . . . . . . . . . . . 771spanning-tree vlan root. . . . . . . . . . . . . . . 772spanning-tree vlan priority . . . . . . . . . . . . . 773UDLD Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .775Detecting Unidirectional Links on a Device Port . . 775
