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Internetworking Terminology Cheat Sheet (DRAFT) by [deleted]

Internetworking Terminology

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Network Termin­ology

Network Segmen­tation
Breaking up a massive network into a number of smaller ones.
 

Devices

Switch
Can break up collision domains
Router

OSI Model Termin­ology

Protocol Data Unit (PDU)
The final structured unit created by an OSI model

Common IP Protocol Numbers

1
ICMP
2
IGMP
6
TCP
17
UDP
88
EIGRP
89
OSPF