Internet Protocols - D-Link DES-3250TG User Manual

2 255.255.255.192
3 255.255.255.224
4 255.255.255.240
5 255.255.255.248
6 255.255.255.252
Table 5- 5. Class C Subnet Masks

Internet Protocols

This is a brief introduction to the suite of Internet Protocols
frequently referred to as TCP/IP. It is intended to give the
reader a reasonable understanding of the available facilities
and some familiarity with terminology. It is not intended to be a
complete description.
Protocol Layering
The Internet Protocol (IP) divides the tasks necessary to route
and forward packets across networks by using a layered
approach. Each layer has clearly defined tasks, protocol, and
interfaces for communicating with adjacent layers, but the
exact way these tasks are accomplished is left to individual
software designers. The Open Systems Interconnect (OSI)
seven-layer model has been adopted as the reference for the
description of modern networking, including the Internet.
A diagram of the OSI model is shown below (note that this is
not a complete listing of the protocols contained within each
layer of the model):
DES-3250TG Layer 2 Fast Ethernet Switch User's Guide
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