CLI Guide

show spanning-tree pvst — displays the PVST+ conguration.
vlan forward-delay
Set the amount of time the interface waits in the Listening state and the Learning state before transitioning to the Forwarding state.
Syntax
vlan vlan-id forward-delay seconds
To return to the default setting, use the no vlan forward-delay command.
Parameters
vlan vlan-range Enter the keyword vlan then the VLAN numbers. The range is from 1 to 4094.
forward-delay
seconds
Enter the keywords forward-delay then the time interval, in seconds, that the system
waits before transitioning PVST+ to the forwarding state. The range is from 4 to 30
seconds. The default is 15 seconds.
Defaults 15 seconds
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
vlan bridge-priority — sets the bridge-priority value.
vlan hello-time — changes the time interval between BPDUs.
vlan max-age — changes the time interval before PVST+ refreshes.
show spanning-tree pvst — displays the PVST+ conguration.
vlan hello-time
Set the time interval between generation of PVST+ and BPDUs.
Syntax
vlan vlan-id hello-time seconds
To return to the default value, use the no vlan hello-time command.
Parameters
vlan vlan-range Enter the keyword vlan then the VLAN numbers. The range is from 1 to 4094.
hello-time seconds Enter the keywords hello-time then the time interval, in seconds, between
transmission of BPDUs. The range is from 1 to 10 seconds. The default is 2 seconds.
Defaults 2 seconds
Command Modes CONFIGURATION (conf-pvst)
Supported Modes Full—Switch
1046 Per-VLAN Spanning Tree Plus (PVST+)