CCNP Routing and Switching TSHOOT 300-135: Official Cert Guide

Understanding the Best Path Decision-Making Process

The following list presents the order that BGP reviews the attributes when deciding which path is the best:

1. Prefer highest weight

2. Prefer highest local preference

3. Prefer route originated by the local router

4. Prefer shortest autonomous system path

5. Prefer lowest origin code

6. Prefer lowest MED (metric)

7. Prefer external over internal path

8. Prefer path through closest IGP neighbor

9. Prefer oldest route for eBGP paths

10. Prefer path with the lowest neighbor BGP RID

11. Prefer path with the lowest neighbor IP address

As you go through the BGP best path decision-making process, ...