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

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

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Created On 12/30/20 18:26 PM - Last Modified 01/15/21 01:45 AM


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.
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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).
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  1. Create BGP Peer.
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  1. Create Export Rule to block and allow.
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  1. Enable Aggregate Rule with Summary checkbox is unchecked.
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  1. Apply Redistribution Profile to Redistribution Rule.
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  1. Result - Rib Out
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