Reference Guide

Command
History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
By default, Dell Networking OS implements an optimized flush mechanism for
PVST+. This helps in flushing the MAC addresses only when necessary (and less
often) allowing for faster convergence during topology changes. However, if a
standards-based flush mechanism is needed, you can turn this knob command on
to enable flushing MAC addresses after receiving every topology change
notification.
vlan bridge-priority
Set the PVST+ bridge-priority for a VLAN or a set of VLANs.
S5000
Syntax
vlan vlan-range bridge-priority value
To return to the default value, use the no vlan bridge-priority command.
Parameters
vlan vlan-range Enter the keyword vlan followed by the VLAN number(s).
The range is 1 to 4094.
bridge-priority
value
Enter the keywords bridge-priority followed by the
bridge priority value in increments of 4096. The range is 0 to
61440. The default is 32768.
Defaults 32768
Command
Modes
CONFIGURATION (conf-pvst)
Command
History
Version 9.0(1.3) Introduced on the S5000.
Related
Commands
vlan forward-delay – changes the time interval before Dell Networking OS
transitions to the Forwarding state.
vlan hello-time – change the time interval between BPDUs.
vlan max-age – changes the time interval before PVST+ refreshes.
show spanning-tree pvst – displays the PVST+ configuration.
1100
Per-VLAN Spanning Tree Plus (PVST+)