Chapter 2 Configuring Spanning-Tree Bridging for the CSS

Configuring Spanning-Tree Bridge Forward-Time

Configuring Spanning-Tree Bridge Forward-Time

The forward time is the delay time, in seconds, that all bridges use for forward delay when this bridge is acting as the root. By default, the bridge forward delay time is 4 seconds. Use the bridge forward-timecommand to set the bridge forward delay time. Enter an integer from 4 to 30.

To set the bridge forward time to 9, enter:

(config)# bridge forward-time 9

To restore the default delay time of 4, enter:

(config)# no bridge forward-time

Configuring Spanning-Tree Bridge Hello-Time

The hello time is the time, in seconds, that all bridges wait before sending a hello packet (when the bridge acts as the root). By default, the bridge hello time interval is 1 second. Use the bridge hello-timecommand to set the bridge hello time interval. Enter an integer from 1 to 10.

To set the bridge hello time to 9, enter:

(config)# bridge hello-time 9

To restore the default hello time interval of 1, enter:

(config)# no bridge hello-time

Configuring Spanning-Tree Bridge Max-Age

The maximum age is the time, in seconds, that protocol information received on a port is stored by the CSS (when a bridge acts as the root). By default, the bridge spanning-tree maximum age is 6 seconds. Use the bridge max-agecommand to set the bridge spanning-tree maximum age. Enter an integer from 6 to 40.

Note Ensure the bridge maximum age is greater than or equal to 2 times (bridge hello-time + 1 second) and less than or equal to 2 times (bridge forward-time - 1 second).

 

Cisco Content Services Switch Routing and Bridging Configuration Guide

2-4

OL-4580-01

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Cisco Systems OL-4580-01 manual Configuring Spanning-Tree Bridge Hello-Time, Configuring Spanning-Tree Bridge Max-Age