IP Routing Protocols

TYPES OF ROUTE ADVERTISING

There are two types of route advertising protocols used in the data communications industry: (a) distance-vector and (b) link state metric. Their operations are summarized in Table 3-1.

Table 3-1. Types of Route Advertising

Distance-vector (Minimum hop)

Route between sending and receiving machine:

Fewest number of intermediate hops

Incremental distributed route calculation

Link state metric

Route between sending and receiving machine:

Sum of path metrics with smallest value

Routes determined by a replicated database of metrics

The distance-vector protocol is more commonly known as a minimum hop protocol, which means the protocol searches for a path between a sending and receiving node that has the fewest number of intermediate ...