Administrator Guide

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 on the E-Series.
Usage
Information
By default, the system implements an optimized flush mechanism for RSTP. This implementation 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, you can turn on this knob
command to enable flushing MAC addresses after receiving every topology change notification.
1466 Rapid Spanning Tree Protocol (RSTP)