configure bgp maximum-as-path-length
Description
This command adds support for filtering BGP updates based on a specified maximum autonomous system path (AS-path) length. This support is on a per BGP instance basis (not per neighbor).
Syntax Description
maximum-as-path-length | Specifies setting the AS path length. |
max-as-path | Value specifying the AS path length. A value of 0 indicates no AS-path limit. Range is 1 to 1,500. |
Default
N/A
Usage Guidelines
It can be desirable to protect the router against BGP updates with excessively long AS-paths to ensure memory is not exhausted. Any BGP updates that exceed this user-defined limit are dropped. This setting does not affect existing routes.
Example
The following example sets the AS-path to 500.
configure bgp maximum-as-path-length 500
History
This command was first available in ExtremeXOS 21.1.
Platform Availability
Summit X460-G2, X670-G2, X770, X440-G2, X450-G2, and X620 series switches