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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+ configuration.
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
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 forward-delay — changes the time interval before the system transitions to the forwarding state.
vlan max-age — changes the time interval before PVST+ refreshes.
show spanning-tree pvst — displays the PVST+ configuration.
938 Per-VLAN Spanning Tree Plus (PVST+)