Routing Information Protocol - Cisco Authorized Training Program/Courses in SLA Chennai

Routing Information Protocols (RIP) like all routing protocols, is designed to disseminate network information pertinent to routers. At the most basic level, routers need to know what networks are reachable and how far away they are. RIP does this, and it’s still widely used today.

Few people have some negative feedback about RIP. They say it converges slowly, it doesn’t scale, it’s insecure because authentication is only plain text, and it suffers from split-horizon issues. This is all true, but it’s still very useful.

• RIP uses hop counts to calculate optimal routes (a hop is a router).
• RIP routing is limited to 15 hops to any location (16 hops indicates the network is unreachable).
• RIP uses the split horizon with poison reverse method to prevent the count-to-infinity problem.
• RIP uses only classful routing, so it uses full address classes, not subnets.
• RIP broadcasts updates to the entire network.
• RIP can maintain up to six multiple paths to each network, but only if the cost is the same.
• RIP supports load balancing over same-cost paths.
• The update interval default is 30, the invalid timer default is 180, the holddown timer default is 180, and the flush timer default is 240.

If you are interested to know more about routing protocols, you can join a networking course. SLA IT Employment Training Company conducts courses in networking such as CCNA, MCSA, and N+. For more details visit SLA Chennai or dial (91 44) 4200 5050/90.