Administrator Guide

tc-flush-standard
Enable the MAC address flushing after receiving every topology change notification.
Z-Series
Syntax
tc-flush-standard
To disable, use the no tc-flush-standard command.
Defaults Disabled.
Command Modes CONFIGURATION
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
9.7(0.0) Introduced on the S6000-ON.
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.
6.5.1.0 Introduced.
Usage
Information
By default, Dell Networking OS implements an optimized flush mechanism for PVST+. This
implementation 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.
Z-Series
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 then the VLAN numbers. The range is from 1 to 4094.
bridge-priority
value
Enter the keywords bridge-priority then the bridge priority value in
increments of 4096. The range is from 0 to 61440. The default is 32768.
Defaults 32768
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.
994 Per-VLAN Spanning Tree Plus (PVST+)