Reference Guide

Rapid Spanning Tree Protocol (RSTP) | 1277
• If no BPDU is received from a remote device, loop guard places the port in a
loop-inconsistent blocking state and no traffic is forwarded on the port.
Example
FTOS(conf)#interface gigabitethernet 4/0
FTOS(conf-if-gi-4/0)#spanning-tree rstp edge-port
FTOS(conf-if-gi-4/0)#show config
!
interface GigabitEthernet 4/0
no ip address
switchport
spanning-tree rstp edge-port
no shutdown
FTOS#
tc-flush-standard
c e s
Enable the MAC address flushing upon receiving every topology change notification.
Syntax
tc-flush-standard
To disable, use the
no tc-flush-standard command.
Defaults
Disabled
Command Modes
CONFIGURATION
Command
History
Usage
Information
By default FTOS implements an optimized flush mechanism for RSTP. This helps in flushing
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 upon receiving every topology
change notification.
Version 8.3.7.0 Introduced on S4810
Version 7.6.1.0 Support added for S-Series
Version 7.5.1.0 Support added for C-Series
Version 6.5.1.0 Introduced for E-Series