Administrator Guide

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+ 7 BPDUs.
C9000 Series
Syntax
vlan vlan-range 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)
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
9.9(0.0) Introduced on the C9010.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
6.2.1.1 Introduced.
Related
Commands
● vlan bridge-priority — sets the bridge-priority value.
● vlan forward-delay — changes the time interval before Dell Networking OS transitions to the
forwarding state.
● vlan max-age — changes the time interval before PVST+ refreshes.
● show spanning-tree pvst — displays the PVST+ configuration.
Per-VLAN Spanning Tree Plus (PVST+) 1291