1.5 BGP – Oscorp Labs

1.5.a IBGP and EBGP peer relationships

Some trivia facts: Basic eBGP configuration: R1:router bgp 1 neighbor 1.1.12.2 remote-as 2 network 1.1.12.0 mask 255.255.255.0 network 10.1.1.1 mask 255.255.255.255 R2router bgp 2 neighbor 1.1.12.1 remote-as 1 network 1.1.12.0 mask 255.255.255.0 network 10.1.1.2 mask 255.255.255.255 Basic iBGP configuration: R1:router bgp 1 neighbor 1.1.12.2 remote-as 1 network 1.1.12.0 mask 255.255.255.0 network 10.1.1.1 mask 255.255.255.255 R2:routerContinue reading “1.5.a IBGP and EBGP peer relationships”

Blueprint 1.5 BGP: 1.5.b Path Selection

1.5.b i: Attributes There are a million resources out there that will explain BGP attributes and path selection better than I can, but I’m doing this for my own purposes and will try to phrase it so I’m able to easily remember it when I come back to review. I recommend you skip this entryContinue reading “Blueprint 1.5 BGP: 1.5.b Path Selection”

Blueprint 1.5 BGP: 1.5.e ii Aggregation, as-set

A quick run through on route summarization with BGP.Resources:Video: Routing & Switching – BGP | Lab Minutes AGGREGATION The CIDR Report: See what a difference aggregation can make.https://bgp.potaroo.net What’s the difference between aggregation and summarization? It seems like we’re just doing summarization here!According to TCP/IP, Volume II, they’re the same thing. They used to beContinue reading “Blueprint 1.5 BGP: 1.5.e ii Aggregation, as-set”

Blueprint 1.5 BGP: 1.5.c iii Outbound Route Filtering

1.5.c iii Outbound Route Filtering I’m doing some brief route filtering labbing today. The resources I’m using are:LabMinutes.comVideo: Routing & Switching – BGP | Lab Minutes Routing TCP/IP, Volume II: CCIE Professional Development, Second Editionhttps://learning.oreilly.com/library/view/routing-tcpip-volume/9780134192772/ From the section: Filtering Routes by NLRI (Network Layer Reachability Information) “IOS provides two tools for per-NLRI route filtering: DistributeContinue reading “Blueprint 1.5 BGP: 1.5.c iii Outbound Route Filtering”

The Journey to CCIE Enterprise Infrastructure

This is my first attempt at blogging. The goal is to document my CCIE Enterprise Infrastructure journey, including detailed labs and configs and whatever else comes up. There are a couple reasons I decided to document my studies as a blog: I’m hoping that this may help others who are also on the journey. ItContinue reading “The Journey to CCIE Enterprise Infrastructure”