Question on BGP: What is an AS routing policy

[Steph1963]

What does BGP use during the best path selection process:

A) Speed
B) AS Routing Policy
C) Bandwidth plus delay
D) number of routers to reach a destination network

Trying to resolve that question made me realize that I did not understand the concept of AS routing policy. Originally thought that BGP was using the Route Selection Process (Highest Weight,...) but this question made me realize that I was wrong.

Can somebody can give me an example of what is an AS Routing Policy.

Thanks for your help
Stéphane

[Mohamed Sobair]

Stephane,

The AS routing policy is meant to be the BGP AS path attributes that it uses to select its best path.

The BGP AS path attributes are , Weight , local preference , As-Path, Origin , Med .

HTH

Mohamed