Our company name: AB
New company name: CG
CG is planning to get connected to AB through OSPF connectivity.
We have two Locations, A & B in our Company.
In simple terms, Routers, R1 at Location A & Router, R2 at Location B.
Company, CG will connect to our Company, AB, through Router R1 & Router R2 using OSPF.
DOWNLOAD —–> overview
1. OSPF Connectivity between Company, CG & Our Company, AB
2. OSPF Dual Connectivity for Fail over Purpose
3. Asymmetric Loop Avoidance
What is Asymmetric Loop?
Example in our scenario
At R1, new subnet from Company, CG will be learned at Company, AB through two different paths
Path 1: Through Direct connection: CG ——> R1
Path 2: Through Diverted path: CG —–> R2 ——> R1
To avoid this, we utilize OSPF process ID. At R1, we make process ID 100 & 200. By default, Two different Processes cannot exchange subnets.
Point To Note: OSPF Process ID is locally significant to Router
This is just an Overview …..
I have picked configuration from Live Environment & prepared explained document for Two Different Location, Location A & location B.
PLAN OF ACTION FOR ” LOCATION A “
DOWNLOAD ——> CG DIAGRAM & CONFIG LOCATION A
PLAN OF ACTION FOR ” LOCATION B “
DOWNLOAD ——-> CG DIAGRAM & CONFIG LOCATION B