WAN Technologies

11/30/97


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Table of Contents

WAN Technologies

Analog Remote Access

Definitions

Definitions cont.

What is T-1?

T-1 Channel Formats

Why T-1?

Analog Remote Access

T-1 Remote Access

T1 Channel Bank Remote Access

Communication Servers

Channelized T1 Access

T1 Hardware Features

T1 Hardware Features

Modem Specifications

Enterprise Remote Access Applications

Enterprise Internet Access

X.25

X.25 Standard

X.25 Key Features

X.25 and OSI Reference Model

X.25 Data Link Layer (LAPB)

X.25 Data Link Layer (LAPB)

X.25 Network Layer (PLP)

X.25 Key Features

X.25

X.25

X.25

X.25

X.25

X.25

X.25

X.25

X.25

X.25

X.25

X.25

X.25

X.25

X.25

ISDN

ISDN

ISDN

Frame Relay

Frame Relay

Frame Relay

Frame Relay

Frame Relay

Frame Relay Standards

Frame Relay Key Features

LMI Extensions

LMI Extensions

Frame Relay and OSI Reference Model

Frame Relay Data Link Layer (LAPF)

Frame Relay Congestion Control

Frame Relay Traffic Rate Management

Modern Digital Communications Networks

Frame Relay

Asynchronous Transfer Mode (ATM)

Similarities with X.25 and Frame Relay

The Cell advantage

Protocol Architecture

Physical Layer

ATM Layer

ATM Adaptation Layer (AAL)

Different Planes of the Protocol Reference Model

Virtual channel connection- the ATM logical connection

Virtual Path Connection

VPC advantages

Call Establishment Process

VP/VC Terminology

Virtual Channel defined

Virtual Channel Link defined

Virtual Channel Identifier(VCI)

Virtual Channel Connection (VCC) defined

Virtual Path defined

Virtual Path Link defined

Virtual Path Identifier (VPI)

Virtual Path Connection defined

Uses of VCCs

VCC between end users

VCC between an end user and a network entity

VCC between two network entities

VP/VC characteristics

Quality of service

Switched and Semi-permanent VCCs

Cell sequence integrity

Traffic Negotiation & Usage Monitoring

Virtual channel identifier restriction within a VPC

ATM cells

ATM cell advantages

ATM cell’s 5 octet header

Generic flow control field

Virtual path identifier

Virtual channel identifier

Payload type

Payload type (contd.)

Author: UNM

Email: network@unm.edu

Home Page: http://www.unm.edu/~network/presentations/course/chapters.html