Definition
RIP, or Routing Information Protocol, is an older distance vector routing protocol used to exchange routing information between routers on an internetwork. It operates by having routers periodically broadcast their entire routing tables to their immediate neighbors. This allows routers to learn about available network paths and choose the shortest one based on hop count. Understanding RIP is crucial for network administrators to troubleshoot routing issues and optimize network performance. For instance, RIP might be used in small, stable networks where the overhead of more complex protocols is unnecessary. It differs from link state protocols like OSPF, which build a complete map of the network topology. RIP is a foundational concept often encountered in Network+ and CCNA certifications.