9. Impact on Route Selection

The BGP Decision Process Tie Breaking rules (Sect. 9.1.2.2, [1]) are modified as follows:

If a route carries the ORIGINATOR_ID attribute, then in Step f) the ORIGINATOR_ID SHOULD be treated as the BGP Identifier of the BGP speaker that has advertised the route.

In addition, the following rule SHOULD be inserted between Steps f) and g): a BGP Speaker SHOULD prefer a route with the shorter CLUSTER_LIST length. The CLUSTER_LIST length is zero if a route does not carry the CLUSTER_LIST attribute.