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Basic Data Transmission in Networks: MAC Tables and ARP Tables

Article Description

Bombarded with jargon, no wonder networking beginners get lost. Sean Wilkins, co-author of CCNA Routing and Switching 200-120 Network Simulator, explains some crucial terminology for anyone who needs to understand complex networking.

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Summary

A good understanding of the MAC address learning process on a switch and the MAC lookup process performed via ARP by network devices is vital when learning about networking. Since almost all networking traffic is sourced from and destined to an Ethernet network, these processes are integrated into almost all types of network usage. The advantage is that they work, and work well; but this is also a disadvantage, because networking beginners are used to having the network “just work,” without having to understand the mechanics. This low-level understanding will make the networking student aware of how networking communication begins. This knowledge is often called upon as students rise on the networking career ladder.