BGP

These documents look at the specific operation of BGP.

Best Path Algorithm

It’s good to have this printed on your desk or sitting somewhere for easy access until it becomes second nature.

BGP Authentication

BGP security is a common practice for Service Provider Edge WAN connections. This document details the basics.

local-as command

The BGP local-as command, and all of its options, can be tough to get your head around. This document gives a concise breakdown of what each of the different options are and how they affect the AS_PATH attribute. A supplementary lab can be downloaded here.

Path Attributes

This document gives a flow chart defining the different BGP Path Attributes types, showing which attribute falls under which type.

Route Dampening

BGP Route Dampening is commonly used in Service Provider environments to protect the core network from BGP reconvergence events caused by unstable BGP routes. This document details how it works.

Route Reflection Rules

A quick reference guide to the principle and rules involved in route reflection.