6 spanning-tree max-age – CANOGA PERKINS CanogaOS Command Reference User Manual

Page 134

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CanogaOS Command Line Reference

Revision 1.02

Proprietary & Confidential Canoga Pertkins Metro Ethernet Switches

Page 134 of 855

Default

The default hello-time value is 2.

Usage

The allowable range of values is 1-10 seconds. However, make sure that the value of the hello time is
always greater than the value of the hold time (1 second by default).


Examples

Switch# configure terminal
Switch(config)# spanning-tree hello-time 5

Switch# configure terminal
Switch(config)# no spanning-tree hello-time

Related Commands

7.6 spanning-tree max-age

Use this command to set the maximum age for the default bridge. This value is used by all instances.
Use the no parameter with this command to restore the default value of the maximum age.


Command Syntax

spanning-tree max-age seconds
no spanning-tree max-age

seconds

The maximum time, in seconds, to listen for the root bridge. The range is 6 to 40.

Command Mode

Global configuration

Default

The default value of bridge maximum age is 20 seconds.

Usage

Maximum age is the maximum time for which (if a bridge is the root bridge) a message is considered
valid. This prevents the frames from looping indefinitely. The value of maximum age should be greater
than twice the value of hello time plus 1, but less than twice the value of forward delay minus 1. The
allowable range for maximum age is 6-40 seconds. Configure this value sufficiently high, so that a
frame generated by root can be propagated to the leaf nodes without exceeding the maximum age.


Examples

Switch# configure terminal

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