6 spanning-tree max-age – CANOGA PERKINS 9175 Command Reference User Manual
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CanogaOS Command Reference
7-4
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
Switch(config)# spanning-tree max-age 12
Related Commands