Cisco Systems Dial NMS Instructions d'exploitation télécharger pdf (Page 23)

Basic Dial NMS Implementation Guide

Network Design for a Dial NMS Case Study

Introduction to the Case Study

This case study describes:

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How one Internet service provider (ISP) designs, implements, and operates a dial network

management system (NMS) for a dial Internet access service (DIAS).



How to implement dial NMS protocols, applications, and other utilities.

THEnet is an ISP in Austin, Texas that wants to develop a dial NMS and integrate it with its existing

Network Operations Center (NOC). THEnet has two dial point-of-presences (POPs) that provide

dial-up services for the following types of customers:

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Residential subscribers

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Corporations who outsource their dial-up services and want to avoid the overhead of operating their

own dial POP.

Figure 4 THEnet Operates Two POPs from One NOC

38198

POP #1

POP #2

PSTN

Internet

Redundancy

Remote modem

users

Firewall

NOC

Firewall

Backbone

router

Backbone

router

Intranet

WAN

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Cisco Systems Dial NMS Instructions d'exploitation Page 23