Cisco Systems OL-4580-01 Configuring Spanning-Tree Bridge Aging-Time, Task and Command Example

Chapter 2 Configuring Spanning-Tree Bridging for the CSS

Configuring Spanning-Tree Bridge Aging-Time

Table 2-1 Spanning-Tree Bridging Configuration Quick Start (continued)

Task and Command Example

4.Set the bridge spanning-tree maximum age, in seconds.

(config)# bridge max-age 21

5.Set the priority that the bridge spanning tree uses to choose the root bridge in the network.

(config)# bridge priority 1700

6.(Recommended) Display bridge forwarding information.

(config)# show bridge status

The following running-configuration example shows the results of entering the commands in Table 2-1.

!*************************** GLOBAL ***************************

bridge aging-time 600 bridge forward-time 9 bridge hello-time 9 bridge max-age 21 bridge priority 1700

Configuring Spanning-Tree Bridge Aging-Time

The aging time is the timeout period, in seconds, for aging out dynamically learned forwarding information. By default, the bridge filtering database aging time for the CSS is 300 seconds. To set the bridge filtering database aging time for the CSS., use the bridge aging-timecommand. Enter an integer from 10 to 1000000.

To set the bridge aging time to 600, enter:

(config)# bridge aging-time 600

To restore the default aging time of 300, enter:

(config)# no bridge aging-time

	Cisco Content Services Switch Routing and Bridging Configuration Guide
OL-4580-01		2-3