It is a known fact that Distance Vector routing protocols are prone to major problems as a result of their simplistic “routing by rumor” approach. Distance Vector and Link State protocols use different techniques to prevent routing problems. The most important mechanisms include the following:
- Invalidation timers: These are used to mark routes as unreachable when updates for those routes are not received for a long time.
- Hop count limit: This parameter marks routes as unreachable when they are more than a predefined number of hops away. The hop count limit for RIP is 15, as . . .
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