Hello-time – Dell POWEREDGE M1000E User Manual

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Dell Converged Enhanced Ethernet Command Reference

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hello-time

Sets the interval between the hello Bridge Protocol Data Units (BPDUs) sent on an interface.

Synopsis

hello-time seconds

no hello-time

Operands

seconds

Specifies the time range in seconds for the interval between the hello BPDUs
sent on an interface. The range of valid values is 1-10.

Defaults

The default is 2 seconds.

Command

Modes

Protocol Spanning Tree mode

Description

Use this command to configure the spanning-tree bridge hello time, which determines how often
the device broadcasts hello messages to other devices. Use the no hello-time command to return
to the default settings.

Usage

Guidelines

When configuring the hello-time, the max-age setting must be greater than the hello-time setting.
The following relationship should be kept:

2*(forward-delay - 1)>=max-age>=2*(hello-time + 1)

Examples

To configure spanning-tree bridge hello time to 5 seconds:

switch(conf-stp)#hello-time 5