Routing Information Protocol (RIP) | 74736Routing Information Protocol (RIP)Routing Information Protocol (RIP) is supported only on platforms: e c s zRIP is supported on the S-Series following the release of FTOS version 7.8.1.0, and on the C-Series withFTOS versions 7.6.1.0 and after.Routing Information Protocol (RIP) is based on a distance-vector algorithm, it tracks distances or hopcounts to nearby routers when establishing network connections.• Protocol Overview on page 747• Implementation Information on page 748• Configuration Information on page 748• RIP Configuration Example on page 756RIP protocol standards are listed in the Appendix 50, Standards Compliance chapter.Protocol OverviewRIP is the oldest interior gateway protocol. There are two versions of RIP: RIP version 1 (RIPv1) and RIPversion 2 (RIPv2). These versions are documented in RFCs 1058 and 2453.RIPv1RIPv1 learns where nodes in a network are located by automatically constructing a routing data table. Therouting table is established after RIP sends out one or more broadcast signals to all adjacent nodes in anetwork. Hop counts of these signals are tracked and entered into the routing table, which defines wherenodes in the network are located.The information that is used to update the routing table is sent as either a request or response message. InRIPv1, automatic updates to the routing table are performed as either one-time requests or periodicresponses (every 30 seconds). RIP transports its responses or requests by means of UDP over port 520.
