Pdf dynamic routing protocols analysis based on dissimilar. In this chapter we cover the basic principles of dynamic routing algorithms that. Routing information protocol rip is an interior gateway protocol igp that is commonly used in internal networks. Cisco asa 5500 series configuration guide using the cli, 8. This chapter explains multiple routing protocols particularly dynamic routing protocols and describes their relative strengths and weaknesses. Administrative distance is an integer value that is used to indicate a.
The following sections describe several important benefits that dynamic routing protocols provide. Igrp is a distance vector routing protocol developed by cisco. Metrics are used by dynamic routing protocols to calculate the best path to a destination. A special thank you to alex zinin, author of the book cisco ip routing. In many networks, dynamic routing protocols are typically used with static routes. Introduction to dynamic routing protocols dynamic routing protocols play an important role in todays networks. Comparison of routing protocols interms of packet transfer having. To address the needs of larger networks, two advanced routing protocols were developed. Gateway routing protocol igrp and enhanced igrp eigrp. Because of this process, you can create floating static routes that are installed in the routing table when the route discovered by a dynamic routing protocol fails.
Routing protocols and concepts pearson it certification. Its specification is in the public domain rfc 1247. Dynamic routing protocols for campuses services geant. Configure dynamic routing information protocol rip on an. Dynamically discover and maintain routes calculate routes distribute routing updates to other routers reach agreement with. Instead of configuring static routes, you can use dynamic routing protocols. Only dynamic routing uses routing protocols, which enable routers to. Pdf efficient routing is one of the key challenges in the design and performance of a. Cisco developed the interior gateway routing protocol igrp and enhanced igrp eigrp, which also scales well in larger network implementations. Using a networkers journal pdf booklet providing important insight into the value.
Igp, distance vector, classless protocol developed by cisco. You should not use a dynamic routing protocol, particularly rip, over a dial. It also shows how to read a routing table easily and interpret the ipv6 routing information listed within it. Interior gateway routing protocol is ciscos proprietary routing protocol based on diffusing. Pdf routing is the process your computer uses to transmit a packet between. Rip allows a hop count of 15, before considering the destination unreachable. The routing protocols that dynamic routing uses to learn routes, such as distancevector and linkstate routing protocols, are beyond the scope of this document. Devices that do not use arp when a network is divided into two segments, a bridge joins the segments and filters traffic to each segment based on media access control mac addresses. Dynamic routing protocols not only perform these path determination and route table update functions but also determine the nextbest path if the best path to a destination becomes unusable. Numerous documents about dynamic routing protocols from several different sources can nowadays. Protocolindependent configuration guide, cisco ios.
Eigrp also scales well in larger network implementations. Cisco routers support most routing protocols, including bgp, rip, and ospf. Open shortest path first ospf is a routing protocol developed for ip networks by the igp working group of the internet engineering task force ietf. It was derived from several research efforts, including a version of osis isis routing protocol. Open shortest path first ospf and intermediate systemtointermediate system isis.