BGP BestPath Selection process based on BGP attributes
1. Cisco weight (local to router) – Bigger is better.
2. local preference (local to AS) – Bigger is better.
Common Student Questions
I often Confused what commands can be used in CCIE Lab exam? So, after crawling the whole internet for couple of days, I Finally found out the most common question arises when appearing for CCIE Lab Exam, greatly explained by none other than Anthony Sequeira, a CCIE, CCSI and a teacher par excellence at IPExpert Blog.
IP prefix-list
ip prefix-list provides the most powerful prefix based filtering mechanism
Here is a quick little tutorial on Prefix-lists for you.
A normal access-list CANNOT check the subnet mask of a network. It can only check bits to make sure they match, nothing more. A prefix-list has an advantage over an access-list in that it CAN check BOTH bits and subnet mask – both would have to match for the network to be either permitted or denied.