In this post, we will see use cases for BGP path selection with default route and multihoming. BGP EDGE PATH SELECTION WITH DEFAULT ROUTE : Customer receiving the default route from SP1 and SP2. Customer wants to reach 18.104.22.168/24 network which is customer of SP1. Customer increase the […]
Saby has more than 9 years of Experience in Networking field. His level of commitment and passion towards technology has developed him as an Expert in his field. He has written various blogs and is also a Cisco Live Speaker for NG Multicast.
In this post, we will discuss about the following: Route redistribution between BGP to IGP Route convergence Peer Tracking Slow Peer BGP-IGP ROUTING EXCHANGE Routing exchange between BGP and IGP can occur in two direction : from IGP to BGP and BGP into IGP. There are two common […]
Let me start with the little history of Dial up Internet access before starting the discussion on BNG: Typically the dial up Internet Architecture, the modem at the residential users home connects to the service provider modem pool through the Telephone line. A session is established between the […]
We will discuss about Deterministic MED in this post using the below topology: R4 advertised 172.16.0.0/24 prefix with MED of 200, and R5 selects R4 path as the best path because of no other path exits. R3 advertises the 172.16.0.0/24 prefix with a MED of 100. The AS-PATH […]
HOW BEST PATH ALGORITHM WORKS : Before the Path selection runs, the best path process excludes some prefixes based on the below mentioned following criteria : No Valid Next-Hop : This is the most common cause of the prefix being ignored by the selection process. BGP prefixes carry […]
Today we are going to learn about how the BGP packet is processed when it reaches the device and the BGP route advertisement. Let us start the discussion with comparison of IGP and BGP. There are three types of IGP are commonly used in the network: RIP, OSPF, […]