Cisco 3500 MCU Troubleshooting Manual

Troubleshooting Guide for Cisco Unified
Videoconferencing 3500 MCU Release 5.1

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Text Part Number: OL-12051-01

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Troubleshooting Guide fo r Ci sco Unified Videoconferencing 3500 MCU Release 5.1

© 2006 Cisco Systems, Inc. All rights res erved.

Preface v

Purpose v
Audience v
Document Conventions v
Obtaining Documentation vi

Cisco.com vi
Product Documentation DVD vi

Ordering Documenta tion vi
Documentation Feedback vii
CiscoProduct Security Overview vii

Reporting Security Problems in CiscoProducts vii
Product Alerts and Field Notices viii
Obtaining Technical Assistance viii

CiscoTechnical Support & Documentation Website viii

Submitting a Service Request ix

Definitions of Service Request Severi ty ix

CONTENTS

CHAPTER

Obtaining Additional Publications and Information x

1 Troubleshooting the Cisco Unified Videoconferencing3500 MCU 1-1

Resolving MCU Failure to Register with the Gatekeeper 1-2
Resolving Front Panel LED Issues 1-2
Resolving MCU Confer ence Initiation Failure 1-3
Resolving Conference Access Failure 1-4
Resolving Cascad ing Failure 1-4
Resolving Quality Issues in Cascaded Con ferences 1-5
Resolving Endpoint Disconnection Issues 1-5
Resolving Unexpected Conference Termina tion 1-5
Resolving Presentation Issues 1-6
Resolving Participant Connection Issues 1-6
Resolving Unexpected SIP Call Disconnection 1-6
Resolving Audio and Video Issues in SIP Calls 1-6

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Contents

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OL-12051-01

Preface

Revised: November 27, 2006, OL-12051-01

Purpose

This guide provides the informa tion you need to trouble shoot probl ems in the Ci sco Uni fied
Videoconferencing 3500 MCU.

Audience

This guide is intended fo r network ad ministr ators and end users who ne ed help ad dressing operat ional
problems in the Cisco U nified Videoconferencing 3500 MCU.

Document Conventions

This docume nt u s es the f ol lowing conventions:

Convention Description

boldface font Commands and keywords a re i n boldface.

italic font Arguments for which you supply values are in itali c s .
[ ] Elements in square brackets are optional.
{ x | y | z } Alternative keywords are grouped in braces and separat ed by vertical bars .
[ x | y | z ] Optional alterna tive keywords are grouped in bra ckets and sep arated by

vertical bars.

string A nonquoted set of characters. Do not use quotation marks around the string

or the string will include the quotati on marks.

screen font Terminal sessions and information the system displays are in screen font.

boldface screen font Information you must enter is in boldface screen font.

italic screen font Arguments for which you supply values are in italic s c reen font .

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Convention Description

^ The symbol ^ r epre se nts t he key labe led Con trol —for example, the key

combination ^D in a screen di splay means ho ld down the Control k e y while
you press the D key.

< > Nonprinting characters, such as passwords are in angle brackets.

Obtaining Documentation

Cisco documentation and additional literature are available on Cisco.com. This section explains the
product documentati on resource s that Cisco offers.

Cisco.com

You can access the most current Cisco documentation at this URL:

http://www.cisco.com/techsupport

Preface

You can access the Cisco website at this URL:

http://www.cisco.com

You can access international Cisco websites at this URL:

http://www.cisco.com/public/countries_languages.shtml

Product Documentation DVD

The Product Documentation DVD is a library of technical product documentation on a portable medium.
The DV D enables y ou to acc ess instal lation, conf iguratio n, and command gu ides for Cisco hardware and
software products. With the DVD, you have access to the HTML documentati on and some of the
PDF files found on the Cisco website at this URL:

http://www.cisco.com/univercd/home/home.htm

The Product Documen tation DVD is create d and rele ased regula rly. DVDs are available singly or by
subscription. Register ed Cisco. com users can order a Product Docu mentatio n DVD (product number
DOC-DOCDVD= or DOC-DOCDVD=SUB) from Cisco Marketplace at the Product Documentation
Store at this URL:

http://www.cisco.com/go/marketplace/docstore

Ordering Documentation

You must be a registered Cisco .com user to ac cess Cisc o M arket pla ce. Register ed u ser s may or der
Cisco documentat ion at the Prod uct Docum entation St ore at this URL:

http://www.cisco.com/go/marketplace/docstore

If you do not have a user ID or password, you can register at this URL :

http://tools.cisco.com/RPF/register/register.do

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