CLI Guide

To enable PVST+, use the no disable command.
Defaults Disabled.
Command Modes CONFIGURATION (conf-pvst)
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.
Related
Commands
protocol spanning-tree pvst — enter PVST+ mode.
edge-port bpdufilter default
Enable BPDU Filter globally to filter transmission of BPDU on port fast enabled interfaces.
Syntax
edge-port bpdufilter default
To disable global bpdu filter default, use the no edge-port bpdufilter
default command.
Defaults Disabled
Command Modes CONFIGURATION (The prompt is “config-pvst”.)
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.
extend system-id
To augment the Bridge ID with a VLAN ID so that PVST+ differentiate between BPDUs for each VLAN, use
extend system ID. If the VLAN receives a BPDU meant for another VLAN, PVST+ does not detect a loop,
and both ports can remain in Forwarding state.
Syntax
extend system-id
Defaults Disabled
Command Modes PROTOCOL PVST
1208
Per-VLAN Spanning Tree Plus (PVST+)