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Compare between Distance Vector Algorithm and Link State Routing Algorithm.
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| written 8.8 years ago by | • modified 8.7 years ago |
| Distance Vector Routing | Link State Routing |
|---|---|
| Distance vector protocols use a distance calculation plus an outgoing network interface (a vector) to choose the best path to a destination network | Link State protocols track the status and connection type of each link and produces a calculated metric based on these and other factors, including some set by the network administrator |
| Each router maintains routing table indexed by and containing one entry for each router in the subnet | It is the advanced version of distance vector routing |
| Algorithm took too large to converge | Algorithm is faster |
| Distance Vector routing protocols support dis-contiguous subnets | Link State routing protocols support contiguous subnets |
| Distance Vector routing protocols uses hop count and composite metric | Cost is the metric of the Link State routing protocols |
| Bandwidth is less | Wide bandwidth is available |
| Router measure delay directly with special ECHO packets | All delays measured and distributed to every router |
| It doesn’t take line bandwidth into account when choosing the routes | It considers the line bandwidth into account when choosing the routes |
| Distance Vector routing protocols are less scalable such as RIP supports 16 hops and IGRP has a maximum of 100 hops | Link State routing protocols are very much scalable; supports infinite hops |
| Distance vector require less memory | Link state require more memory |