Protocol bgp and two algorithms which are link state routing algorithm and distance. Link state routers each have a copy of the entire network map. Each routing protocols performs in different ways they have their own architecture, route to follow sometimes even. Comparison of rip, ospf and eigrp routing protocols based. This section gives an overview of the most common ip routing protocols. Interior gateway protocols igps routing protocols used to exchange routing information with routers in the same autonomous system as. However, there are so many different types of routing protocol that it can be very difficult to keep track of them all. Rip routing information protocol is one of the oldest routing protocols still in service. Routing information protocolsrip interior gateway protocol igrp open shortest path first ospf exterior gateway protocol egp enhanced interior gateway routing protocol eigrp border gateway protocol bgp intermediate systemtointermediate system isis lets discuss each of above. Overriding static routes with dynamic protocols 16. Routing is one of the most fundamental areas of networking that an administrator has to know. There are 3 types of dynamic routing protocols, these are differ by the way that discover and make calculations about routes. Depending on different factors, there are different types of routing. Network protocol for distributing routing information to network equipment.
All ipenabled devices, including routers and switches, use routing tables. Different types of routing protocols are applied to specific network environment. Distance vector routers find the best path from information send from neighbors. Configuration examples for ipv4 loopfree alternate fast reroute 49. A routing protocol specifies how routers communicate with each other to distribute information. Most of these routing protocols will be examined in detail in other chapters. Numerous documents about dynamic routing protocols from several different.
Dynamic routing protocols for campuses services geant. Ip routingconfiguring rip, ospf, bgp, and pbr ftp directory. Systems and a free opensource build your own router solution quagga. Three typical types of routing protocol are chosen as the simulation samples. Only routers may use redirect other routers are assumed to be informed by fullfledged routing protocol, and not by occasional redirects redirect must be. It depends on the router to choose the best path i. Protocolindependent configuration guide, cisco ios. The advantage of loop free routes is that in these cases the available bandwidth can be. Link state protocols take a different approach to finding the best path in that they share information with other routers in proximity. Routing protocol types the ultimate guide the essentials.
For now, this section gives a very brief overview of each protocol. Routing information protocolsrip interior gateway protocol igrp open shortest path first ospf exterior gateway protocol egp enhanced interior gateway routing protocol eigrp border gateway protocol bgp intermediate systemtointermediate. An as is a single network or a collection of networks under the administrative control of a single organization. The router uses a routing table to determine the path static vs.
All of them are belong to dynamic routing protocols. This chapter introduces different types of routing protocols, routing methods. Interior gateway protocols type 1, linkstate routing protocols, such as ospf. Dynamic routing protocols are used by routers to perform discover routes. Routing protocols determine how your data gets to its destination and helps to make that process as smooth as possible.
Instead of configuring static routes, you can use dynamic routing protocols. These protocols have been designed to allow the exchange of routing tables, or known networks, between routers. The first type is used with the same autonomous system as and the second type to. Bgp is an exterior gateway protocol egp, which allows routers in different. Types of routing protocols ccna free online computer. It contains a list of all the destinations and the various next hops used.
There are a lot of different routing protocols, each one designed for specific network sizes. Comparison of routing protocols interms of packet transfer having. Although there are many types of routing protocols, three major classes are in. Hop count is the metric that rip uses and the hop limit limits the network size that rip can support. Distance vector routing protocol is based on bellman ford algorithm and ford fulkerson algorithm to calculate paths. It can do different number of functions like hop number, bandwidt.685 120 863 626 1620 1247 398 1010 1346 471 683 780 568 213 654 1051 204 1419 892 929 131 1358 169 1109 136 7 1600 62 647 43 623 1228 589 602 335