Basic Concepts

standguideNetworking and Communications

Oct 26, 2013 (3 years and 11 months ago)

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G54ACC


Advanced Computer Communications

Basics and Overview





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Objectives


Review some basic TCP/IP concepts and
terminologies that are needed to understand this
module

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TCP/IP and OSI Model

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Relationship of Layers and Addresses in
TCP/IP

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IP
Classful

Addresses

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Finding the Class in Binary Notation

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Finding the Class in Decimal Notation

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Default Masks

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Special Addresses

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Network Address

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Direct Broadcast Address

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Limited Broadcast Address

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This Host on This Network

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Specific Host on This Network

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Loopback Address

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Unicast, Multicast, Broadcast
and Anycast Addresses

Unicast

communication

is

one
-
to
-
one
.

Multicast

communication

is

one
-
to
-
many
.

Broadcast

communication

is

one
-
to
-
all
.

Anycast

communication

is

one
-
to
-
one
-
of
-
many

.

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Address Resolution

ARP & RARP

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ARP Operation


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Packet Terminology

Application Message

TCP data

TCP hdr

MSS

TCP Segment

IP data

IP hdr

IP Packet/Datagram

Ethernet data

Ethernet

Ethernet Frame

20 bytes

20 bytes

14 bytes

4 bytes

MTU 1500 bytes

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TCP Segment Format

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IP Datagram Format

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Ethernet Frame Format

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Slides are adopted from the book TCP/IP
Protocol Suite by Behrouz A. Forouzan &
Sophia Chung Fegan


Acknowlegments