Configure an AS Path List
Configure an AS path list to restrict the routing information a router learns or advertises to and from a neighbor. The AS path list acts as a filter that matches AS paths.
Before you begin
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To perform this procedure on a non-default VRF, you must first change the VRF instance. For information about how to use EDM for a non-default VRF, see Select and Launch a VRF Context View. All parameters might not be available in non-default VRFs.
 The VRF must have an RP trigger of BGP.
Procedure
- In the navigation pane, expand .
 - Select Policy.
 - Select the As Path List tab.
 - Select Insert.
 - Enter the appropriate information for your configuration.
 - Select Insert.
 
As Path List field descriptions
Use the data in the following table to use the As Path List tab.
| 
 Name  | 
 Description  | 
|---|---|
| 
 Id  | 
 Specifies the AS path list.  | 
| 
 MemberId  | 
 Specifies the AS path access list member ID.  | 
| 
 Mode  | 
 Specifies the action to take if the system selects a policy for a specific route. Select permit (allow the route) or deny (ignore the route).  | 
| 
 AsRegularExpression  | 
 Specifies the expression to use for the AS path.  |