EE 281 Lecture 4: Routing protocols
Document Summary
Routing table the routing table has three columns. The first column is for the destination subnet, the second column indicates the identity of the next router along the shortest path to the destination subnet, and the third column indicates the number of hops. An intra-as routing protocol is used to determine how routing is performed within an autonomous system (as). Intra-as routing protocols are also known as interior gateway protocols. Historically, two routing protocols have been used extensively for routing within an autonomous system in the internet: the routing information protocol (rip) and open shortest path first (ospf). Rip is implemented as an application layer protocol running over udp, Rip is a distance-vector protocol that operates in a manner very close to the idealized dv protocol. The version of rip specified in rfc 1058 uses hop count as a cost metric; that is, each link has a cost of 1.
