Administrator Guide

Usage Information On an MSTP switch, a port configured as an edge port immediately transitions to the Forwarding state. Only
configure ports connected to end-hosts as edge ports. Consider an edge port similar to a port with spanning-tree
portfast enabled.
If you do not enable shutdown-on-violation, BPDUs are still sent to the RPM CPU.
tc-flush-standard
Enable the MAC address flushing after receiving every topology change notification.
C9000 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
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
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, the system implements an optimized flush mechanism for MSTP. This mechanism 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, this knob command can be turned on to enable
flushing MAC addresses after receiving every topology change notification.
1078 Multiple Spanning Tree Protocol (MSTP)