Avaya Configuring Dial Services Bedienungsanleitung PDF herunterladen (Seite 58)

Configuring Dial Services

3-8

Using the Ping Command for ISDN Connections

To check the availability of a remote device in an ISDN network, you can use the

ping command. The ping command sends an Internet Control Message Protocol

echo request to a remote address that you specify. You can send this command

using Site Manager’s Administration option, Ping from Router, or by using the

Technician Interface.

Call setups for dial connections require more time than setups for ISDN

connections. When you ping a remote device using the default timeout value, ﬁve

seconds, it may fail because the router does not wait long enough for a response

from the remote device. Therefore, you may want to increase the timeout value so

the router will allow enough time for a response.

For information about the

ping command in Site Manager, refer to Managing

Routers and BNX Platforms. For information using the Technician Interface, refer

to Using Technician Interface Software.

Implementation Notes Common to All Dial Services

This section provides information about the Bay Networks implementation for all

three dial services. Many of these features are not part of the dial conﬁguration;

rather, they are features for protocols that work with each dial service.

Point-to-Point Protocol

Site Manager automatically conﬁgures the Point-to-Point Protocol (PPP) on the

lines that you select for dial services, including ISDN B channels. PPP routes or

bridges datagrams over serial point-to-point lines and runs all routing/bridging

protocols that it supports.

Dial circuits use a PPP identiﬁcation mechanism to identify the calling router to

the called router. The identiﬁcation method relies on one of two PPP

authentication protocols: Challenge Handshake Authentication Protocol (CHAP)

or Password Authentication Protocol (PAP). These authentication protocols

implement a security feature that identiﬁes peer routers to one another.

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Avaya Configuring Dial Services Bedienungsanleitung Seite 58