Reference Guide

1172 | Per-VLAN Spanning Tree plus (PVST+)
www.dell.com | support.dell.com
spanning-tree pvst
c e s
Configure a PVST+ interface with one of these settings: edge port with optional Bridge Port Data Unit
(BPDU) guard, port disablement if an error condition occurs, port priority or cost for a VLAN range,
loop guard, or root guard.
Syntax
spanning-tree pvst {edge-port [bpduguard [shutdown-on-violation]] | err-disable | vlan
vlan-range {cost number | priority value} | loopguard | rootguard}
Parameters
Defaults
Not Configured
Command Modes
INTERFACE
edge-port
Enter the keyword edge-port to configure the interface as a PVST+ edge port.
bpduguard
Enter the keyword portfast to enable Portfast to move the interface into forwarding
mode immediately after the root fails.
Enter the keyword bpduguard to disable the port when it receives a BPDU.
shutdown-on-
violation
(OPTIONAL) Enter the keyword shutdown-on-violation to hardware disable an
interface when a BPDU is received and the port is disabled.
err-disable
Enter the keyword err-disable to enable the port to be put into error-disable state
(EDS) if an error condition occurs.
vlan vlan-range
Enter the keyword vlan followed by the VLAN number(s).
Range: 1 to 4094
cost number Enter the keyword cost followed by the port cost value.
Range: 1 to 200000
Defaults:
100 Mb/s Ethernet interface = 200000
1-Gigabit Ethernet interface = 20000
10-Gigabit Ethernet interface = 2000
Port Channel interface with one 100 Mb/s Ethernet = 200000
Port Channel interface with one 1-Gigabit Ethernet = 20000
Port Channel interface with one 10-Gigabit Ethernet = 2000
Port Channel with two 1-Gigabit Ethernet = 18000
Port Channel with two 10-Gigabit Ethernet = 1800
Port Channel with two 100-Mbps Ethernet = 180000
priority value Enter the keyword priority followed the Port priority value in increments of 16.
Range: 0 to 240. Default: 128
loopguard
Enter the keyword loopguard to enable loop guard on a PVST+ port or port-channel
interface.
rootguard
Enter the keyword rootguard to enable root guard on a PVST+ port or port-channel
interface.