BGP: How to Aggregate a Supernet to multiple peers and to Advertise different Subset of specific Routes to each peer?

Objective

This KB article is to provide the procedure to aggregate a supernet to multiple peers and to advertise different subset of specific routes to each peer.

Example:

• Aggregate: 10.101.0.0/16 to AS-2000 and AS-3000.

• Advertise: 10.101.40.0/24 to AS-2000.

• Advertise: 10.101.41.1/24 to AS-3000.

Environment

• PAN OS versions: 8.1.x, 9.0.x, 9.1.x, 10.0.x.

Procedure

1. Create a  Redistribution   Profile  (this example is using  connect  as  source type ).

2. Create  BGP Peer .

3. Create  Export   Rule  to block and allow.

4. Enable  Aggregate   Rule  with  Summary  checkbox is unchecked.

5. Apply  Redistribution Profile  to  Redistribution Rule .

6. Result -  Rib Out