CLI Guide

guard (OPTIONAL) Enter the keyword guard to display the type of
guard enabled on a PVST interface and the current port
state.
Defaults none
Command Modes
• EXEC
• EXEC Privilege
Supported Modes Full—Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information The following describes the show spanning-tree pvst command shown in the
following examples.
Field Description
Interface Name PVST interface.
Instance PVST instance.
Sts Port state: root-inconsistent (INCON Root), forwarding
(FWD), listening (LIS), blocking (BLK), or shut down (EDS
Shut).
Guard Type Type of STP guard configured (Root, Loop, or BPDU guard).
Bpdu Filter
Yes - Bpdu filter Enabled
No - Bpdu filter Disabled
Example (Brief)
Dell# show spanning-tree pvst vlan 2 brief
VLAN 2
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 32768, Address 001e.c9f1.00f3
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 32768, Address 001e.c9f1.00f3
We are the root of Vlan 2
Configured hello time 2, max age 20, forward delay 15
Bpdu filter disabled globally
Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID
PortID
---------- -------- ---- ------- --- -------
---------------------
Po 23 128.24 128 1600 FWD 0 32768 001e.c9f1.00f3
128.24
Te 0/10 128.450 128 2000 DIS 0 32768 001e.c9f1.00f3
128.450
Te 0/11 128.459 128 2000 FWD 0 32768 001e.c9f1.00f3
Per-VLAN Spanning Tree Plus (PVST+)
1211