Command Line Reference Guide

vlan vlan-range Enter the keyword vlan then the VLAN numbers. The range
is from 1 to 4094.
cost number Enter the keyword cost then the port cost value. The range
is from 1 to 200000.
Defaults:
• 10-Gigabit Ethernet interface = 2000.
• Port Channel interface with one 10 Gigabit Ethernet =
2000.
• Port Channel with two 10 Gigabit Ethernet = 1800.
priority value Enter the keyword priority then the Port priority value in
increments of 16. The range is from 0 to 240. The default is
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.
Defaults Not configured.
Command
Modes
INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms,
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.4.2.1 Introduced the loopguard and rootguard options on the
E-Series TeraScale, C-Series, and S-Series.
8.3.7.0 Introduced on the S4810.
8.2.1.0 Introduced the hardware shutdown-on-violation
option.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
7.4.1.0 Added the optional Bridge Port Data Unit (BPDU) guard.
6.2.1.1 Introduced.
Per-VLAN Spanning Tree Plus (PVST+)
1315