Samsung Ubigate iBG3026, Configuration Manual

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Ubigate iBG3026 Configuration Guide
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CHAPTER 13. RIP
Routing Information Protocol(RIP) is a classical distance-vector routing
protocol. It is simple to implement and performs good for small networks.
Distance Vector Routing requires that each node maintain the distance from
itself to each possible destination. The distances are computed using the
information in neighbor’s distance vectors.
RIP version 1(defined in RFC 1058) has been later augmented by RIP version
2(RFC 2453) to increase its usefulness. RIP 2 enabled RIP messages to carry
more information, which permitted the use of a simple authentication
mechanism to secure table updates. More importantly, RIP 2 supported subnet
masks, a critical feature that was not available in RIP.
RIP Protocol Features
RIP sends routing-update messages at regular intervals and when the network
topology changes. When a router receives a routing update that includes
changes to an entry, it updates its routing table to reflect the new route.
The metric value for the path is increased by 1, and the sender is indicated as
the next hop. RIP routers maintain only the best route(the route with the
lowest metric value) to a destination. After updating its routing table, the
router immediately begins transmitting routing updates to inform other
network routers of the change. These updates are sent independently of the
regularly scheduled updates that RIP routers send.
RIP uses a single routing metric(hop count) to measure the distance between
the source and a destination network. Each hop in a path from source to
destination is assigned a hop count value, which is typically 1.