Deployment Guide

Defaults 2 seconds

Command Modes CONFIGURATION RSTP (conf-rstp)

Supported Modes Full–Switch

Command History

Version Description

9.9(0.0) Introduced on the FN IOM.

8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.

Usage Information

The hello time is encoded in BPDUs in increments of 1/256ths of a second. The standard minimum hello time in

seconds is 1 second, which is encoded as 256. Millisecond hello times are encoded using values less than 256; the

millisecond hello time equals (x/1000)*256.

When you congure millisecond hellos, the default hello interval of 2 seconds is still used for edge ports; the

millisecond hello interval is not used.

Related Commands

forward-delay — changes the wait time before RSTP transitions to the Forwarding state.

max-age — changes the wait time before RSTP refreshes the protocol conguration information.

max-age

To maintain conguration information before refreshing that information, set the time interval for the RSTP bridge.

Syntax

max-age seconds

To return to the default values, use the no max-age command.

Parameters

max-age Enter a number of seconds that the waits before refreshing conguration information.

The range is from 6 to 40 seconds. The default is 20 seconds.

Defaults 20 seconds