Cisco 776 - 776 Router - EN Manuel d'utilisateur télécharger pdf

CHAPTER

Concepts and Descriptions 6-1

Concepts and Descriptions

This chapter provides technical explanations of many of the features of the Cisco 700 series

router. Although this information is not required to successfully install the router, it might

be of interest and assist with troubleshooting efforts.

Definition of Terms and Acronyms

This section defines some networking terms you will encounter when gathering required

information and using Cisco 700 series router manuals to configure the router.

Access code

A number that must be dialed preceding the telephone number to dial outside of a

specific telephone system, such as a Centrex system.

AT commands

ATtention commands (used for modem communications)

British Telecom

Challenge Handshake Authentication Protocol (CHAP)

A form of PPP authentication that requires an exchange of user names and secrets

(encrypted passwords) between two devices. This security feature is supported on lines

using PPP encapsulation. CHAP passwords are called secrets because they are sent

encrypted. Both devices must support PPP.

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Résumé du contenu

Page 1 - Concepts and Descriptions

CHAPTER Concepts and Descriptions 6-16Concepts and DescriptionsThis chapter provides technical explanations of many of the features of the Cisco 700 s

Page 2

Definition of Terms and AcronymsCisco 700 Series Router Installation Guide6-2Directory numbersThe equivalent of telephone numbers. This is the number

Page 3 - ISDN Ports

Concepts and Descriptions 6-3PSTNPublic Switched Telephone NetworkRIPRouting Information ProtocolService Profile Identifiers (SPIDs)Numbers assigned

Page 4 - HUB/NODE Switch

HUB/NODE SwitchCisco 700 Series Router Installation Guide6-4NT1 and the ISDN PortsCommonly, telephone carriers use a four-wire network within their sy

Page 5 - Figure 6-1

Concepts and Descriptions 6-5Figure 6-1Your Cisco 761,Cisco 762, Cisco 765, Cisco 771, Cisco 772, or Cisco 775 router can be either a hub or a node.

Page 6

HUB/NODE SwitchCisco 700 Series Router Installation Guide6-6