Configuring RIP 101935Configuring RIPThis chapter describes how to configure Routing Information Protocol (RIP)on the switch. RIP is a dynamic routing protocol for IPv4 networks.The topics covered in this chapter include:• RIP Overview• Default RIP Values• Configuring RIP Features (Web)• Configuring RIP Features (CLI)• RIP Configuration ExampleRIP OverviewRIP is an Interior Gateway Protocol (IGP) that performs dynamic routingwithin a network. PowerConnect 7000 Series switches support two dynamicrouting protocols: OSPF and Routing Information Protocol (RIP).Unlike OSPF, RIP is a distance-vector protocol and uses UDP broadcasts tomaintain topology information and hop counts to determine the best route totransmit IP traffic. RIP is best suited for small, homogenous networks.How Does RIP Determine Route Information?The routing information is propagated in RIP update packets that are sentout both periodically and in the event of a network topology change. Onreceipt of a RIP update, depending on whether the specified route exists ordoes not exist in the route table, the router may modify, delete or add theroute to its route table.RIP uses hop count, which is the number of routers an IP packet must passthrough, to calculate the best route for a packet. A route with a low hop countis preferred over a route with a higher hop count. A directly-connected routehas a hop-count of 0. With RIP, the maximum number of hops from source todestination is 15. Packets with a hop count greater than 15 are droppedbecause the destination network is considered unreachable.
