routing protocols : Classful routing protocols

The video tutorial explains classful routing protocols, highlighting their limitations due to the lack of subnet mask advertisement. It discusses the assumptions made by routers regarding subnet masks, which can lead to network inconsistencies. The tutorial also covers the scalability issues of classful protocols and how they summarize routes across classful boundaries. Examples of classful protocols like RIP version one and IGRP are mentioned, emphasizing their obsolescence in modern networks.

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