
114062 Rev. B
vii
Sample Bandwidth-on-Demand Application ...........................................................2-25
Using the Same Line for All Dial Services ....................................................................2-26
Chapter 3
ISDN Overview
ISDN Standards ..............................................................................................................3-2
Basic Rate Interface .................................................................................................3-2
Primary Rate Interface .............................................................................................3-3
The D Channel .........................................................................................................3-3
Link Access Procedure-D ..................................................................................3-3
Call Control on the D Channel ...........................................................................3-5
ISDN Interfaces ..............................................................................................................3-5
Functional Groups ....................................................................................................3-5
Reference Points ......................................................................................................3-6
For More Information about ISDN ...................................................................................3-8
Chapter 4
Implementation Notes
for All Dial Services
Point-to-Point Protocol ....................................................................................................4-1
PPP Authentication ..................................................................................................4-1
Types of Authentication ............................................................................................4-2
Two-Way Authentication ....................................................................................4-2
One-Way Authentication ....................................................................................4-3
Configuring the Type of Authentication ..............................................................4-4
Using CHAP Names and PAP IDs for Authentication ...............................................4-4
Asynchronous PPP .........................................................................................................4-6
Configuring Modems for Asynchronous PPP Interfaces ..........................................4-7
RADIUS Accounting Services ........................................................................................4-8
IP Adjacent Hosts ...........................................................................................................4-9
ISDN Services ..............................................................................................................4-10
BRI Service on the AN, ANH, ASN, and ARN .......................................................4-11
B Channel Support ..........................................................................................4-11
D Channel Support ..........................................................................................4-11
BRI Leased-Line Operation for Germany and Japan ......................................4-12
BRI Subaddresses ...........................................................................................4-12
Floating B Option for the AN and ANH ............................................................4-12
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