Cisco 1700 Series Specifications download pdf (Page 225)

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Cisco 1700 Series Router Software Configuration Guide

78-5407-03

Chapter A Networking Concepts

Dialer Interfaces and Dialer Profiles

A dialer interface is a WAN interface on the router that is not continuously

connected to a remote device; it dials the remote device whenever a connection is

required. Configuring an interface on a Cisco router to dial a specific remote

device at specific times requires configuring dialer profiles.

You can use dialer profiles to configure the router’s physical interfaces separately

from the logical configuration required for a call. You can also configure the

router to allow the logical and physical configurations to be dynamically bound

together on a per-call basis. All calls going to or from the same destination

subnetwork use the same dialer profile.

A dialer profile consists of the following elements:

• A dialer interface (a logical entity) configuration with one or more dial

strings, each used to reach a specific destination subnetwork.

• A dialer map class defining all the characteristics for any call to the specified

dial string (telephone number).

• An dialer pool of physical interfaces to be used by the dialer interface. The

physical interfaces in a dialer pool are ordered according to priority.

Dialer Interfaces and Dialer Maps

A dialer interface configuration is a group of settings the routers uses to connect

to a remote network. One dialer interface can use multiple dial strings (telephone

numbers). Each dial string is associated with its own dialer map class. The dialer

map class defines all the characteristics for any call to the specified dial string.

For example, the dialer map class for one destination might specify a 56-kbps

ISDN speed, and the map class for a different destination might specify a 64-kbps

ISDN speed.

Dialer Pools

Each dialer interface uses one group of physical interfaces, called a dialer pool.

The physical interfaces in a dialer pool are ordered based on priority. One physical

interface can belong to multiple dialer pools. ISDN BRI interfaces can set a limit

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Cisco 1700 Series Specifications Page 225