Extreme Networks WM-4T1i Guide de l'utilisateur télécharger pdf (Page 17)

WAN Module Installation and User Guide 2-1

Configuring the WAN Physical

Link

This chapter covers the following topics:

• Configuring WAN Physical Links on page 2-2

• Monitoring WAN Physical Links on page 2-8

Overview

In this document, WAN refers to either T1, E1, or T3 technologies. T1 is a mature

technology originally developed for voice telephone transmission. It was used to

aggregate a number of voice lines into a single connection to the telephone network.

Today, T1 is also used to transmit digital data using widely available equipment and

established wiring commonly available in diverse locations.

A similar technology standard is in use in Europe, namely E1. T1 and E1 are similar, but

not identical.

Higher bandwidth characterizes T3 connections. Essentially, a T3 connection is

equivalent to a bundle of 28 T1 connections.

This chapter describes the T1, E1, and T3 features that can be configured in the WAN

module software.

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Extreme Networks WM-4T1i Guide de l'utilisateur Page 17