HPE Aruba Certified Network Security Expert (ACNSX) — Question 79

An administrator is configuring BGP and has two connections to a service provider to two different local routers.
Which BGP metric should the administrator configure to influence which local router the service provider will use to reach certain routes?

Answer options

• A. Weight
• B. Multiple exit discriminator
• C. Local preference
• D. Origin

Correct answer: B

Explanation

The Multiple Exit Discriminator (MED) is used to influence the routing decisions of external BGP peers regarding which path to take when multiple paths are available. Weight and Local Preference are used within an AS, while Origin indicates how the route was introduced, making them less relevant for influencing external routing decisions.