set as-path-limit

Use this command to sets a maximum length of the AS path attribute allowed when all match clauses match for this route map.

Syntax

set as-path-limit limit
no set as-path-limit limit

Parameters

limit Specifies the maximum length of the AS path attribute that will be allowed. Valid values are 0 - 255. Default Value is 0 (not set).

Defaults

None.

Mode

BGP route map configuration.

Usage

BGP allows attributes such as the AS path to be attached to every advertised IP prefix. The total length of BGP attributes attached to a single IP prefix can be very large. IP prefixes with an excessive amount of attribute data residing in the BGP table can result in significant memory utilization. The set as-path-limit command sets the maximum AS path length allowed when all match clauses match for this route map.

The default value for the set as-path-limit command is no AS path limit is set.

The no set as-path-limit command resets the allowed length of the AS path attribute when all match clauses match for this route map to the default value of no AS path length is set.

Example

This example shows how to set the maximum length of the AS path attribute when all match clauses in the bgprm1 route map match to 20:

System(su)->configure
System(su-config)->route-map bgp bgprm1 permit
System(su-config-route-map-bgp)->set as-path-limit 20
System(su-config-route-map-bgp)->