CHABOT COLLEGE CISCO NETWORKING ACADEMY
Chabot College
ISDN
Semester 4, Chapter 5
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ISDN Overview
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Remote Access Issues
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POTS - 56,000 Kbps max
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Remote User
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ISDN Home Solution
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ISDN and SOHO
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What is ISDN?
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World According to Cisco...
In general, ISDN is fast becoming the
transport of choice for applications using
remote connectivity, access to the Internet,
and the World Wide Web. But...
»DSL
»Cable
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BRI = 2B + D
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ITU-T ISDN Standards
I.430, I.431
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Fun for the CCNA Exam
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Q.931 - ISDN Network Layer
• Recommends a network layer between the
terminal endpoint and the local ISDN
switch.
• Does not impose an end-to-end
recommendation.
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Q.931
• The various ISDN providers and switch types
can and do use various implementations of
Q.931. Other switches were developed before
the standards groups finalized this standard.
• Be careful to configure an ISDN switch-type
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ISDN Components
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ISDN Reference Points
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ISDN Data Link Encapsulation
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Encapsulation Options
Default is HDLC
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PPP Advantages
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ISDN Access Options
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A World of Switches
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Switch Types
You specify this information during router
configuration so the router can place ISDN
network-level calls and send data
Country
United States and Canada
France
Japan
United Kingdom
Switch Type
AT&T 5ess and 4ess; Northern Telecom DMS-100
VN2, VN3
NTT
Net3 and Net 5
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SPIDs Service Profile Identifier
You will also need to know what service
profile identifiers (SPIDs) are assigned to
your connection.
SPIDs are a series of characters, which can
look like phone numbers, that identify you
to the switch at the central office.
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ISDN Configuration
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ISDN Config
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ISDN Config
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ISDN Config
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Verifying ISDN
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Verifying ISDN