BGP MED

BGP MED is a BGP attribute that suggests a preferred entry point into an autonomous system.

Simple definition

BGP MED is a BGP attribute that suggests a preferred entry point into an autonomous system. It belongs to the Networking vocabulary.

What is it used for?

Its main purpose is to steer inbound traffic when multiple interconnections exist.

How does it work?

MED is evaluated by BGP best-path rules and a lower value is generally preferred.

Key points

• Scope: A BGP attribute that suggests a preferred entry point into an autonomous system.
• Operational goal: Steer inbound traffic when multiple interconnections exist.
• Mechanism: MED is evaluated by BGP best-path rules and a lower value is generally preferred.

Points to watch

Its effect depends on the neighbor policy and is not a guarantee.

In short

BGP MED is a Networking concept to know when you need to steer inbound traffic when multiple interconnections exist.