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ASNs

ASNs in Apstra

Autonomous system numbers (ASNs) are used to support BGP in the underlay. In Apstra, you create ASN pools in the global Resources catalog. When you're building your blueprint you'll assign those pools, then Apstra will automatically pull resources as needed. If you need to assign a specific ASN, you can assign it manually.

ASN Pool Details

ASN pools include the following details:

Pool Name A unique name to identify the resource pool
Total Usage Percentage of ASNs in use for all ranges in the resource pool. (Hover over the status bar to see the number of ASNs in use and the total number of ASNs in the pool.)
Range Usage The ASNs included in the range and the percentage that are in use. (Hover over the status bar to see the number of ASNs in use and the total number of ASNs in that range.)
Status Indicates if the pool is in use

ASN Pools in the Apstra GUI

From the left navigation menu in the Apstra GUI, navigate to Resources > ASN Pools to go to the global catalog where you can create, edit and delete ASN pools.

Create ASN Pool

  1. From the left navigation menu, navigate to Resources > ASN Pools and click Create ASN Pool (or to copy an existing pool and customize it, click the Clone button for the pool to copy).
  2. Enter a unique name and range. To add another range, click Add a range and enter the range.
  3. Click Create to create the pool and return to the table view.

Update ASN Pool

You can add, change and delete ranges, but if any ASNs are in use, they can't be removed from a range.
  1. From the left navigation menu, navigate to Resources > ASN Pools and click the Edit button for the pool to update.
  2. Add, change and/or delete ASN ranges, as required.
  3. Click Update to update the pool and return to the table view.

Delete ASN Pool

You can delete ASN pools as long as none of the ASNs within the pool are in use.
  1. From the left navigation menu, navigate to Resources > ASN Pools and click the Delete button for the pool to delete.
  2. Click Delete to delete the pool and return to the table view.