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Troubleshooting Guide for Cisco Unified
Videoconferencing 3500 MCU Release 5.1

Text Part Number: OL-12051-01

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Summary of Contents for 3500 MCU

Page 1: ...ems Inc 170 West Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 526 4100 Troubleshooting Guide for Cisco Unified Videoconferencing 3500 MCU Release 5 1 Text Part Number OL 12051 01 ...

Page 2: ...O USE THIS MANUAL EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES Troubleshooting Guide for Cisco Unified Videoconferencing 3500 MCU Release 5 1 2006 Cisco Systems Inc All rights reserved CCVP the Cisco Logo and the Cisco Square Bridge logo are trademarks of Cisco Systems Inc Changing the Way We Work Live Play and Learn is a service mark of Cisco Systems Inc and...

Page 3: ...equest ix Definitions of Service Request Severity ix Obtaining Additional Publications and Information x C H A P T E R 1 Troubleshooting the Cisco Unified Videoconferencing 3500 MCU 1 1 Resolving MCU Failure to Register with the Gatekeeper 1 2 Resolving Front Panel LED Issues 1 2 Resolving MCU Conference Initiation Failure 1 3 Resolving Conference Access Failure 1 4 Resolving Cascading Failure 1 4...

Page 4: ...Contents iv Troubleshooting Guide for Cisco Unified Videoconferencing 3500 MCU Release 5 1 OL 12051 01 ...

Page 5: ...escription boldface font Commands and keywords are in boldface italic font Arguments for which you supply values are in italics Elements in square brackets are optional x y z Alternative keywords are grouped in braces and separated by vertical bars x y z Optional alternative keywords are grouped in brackets and separated by vertical bars string A nonquoted set of characters Do not use quotation ma...

Page 6: ...ocumentation and some of the PDF files found on the Cisco website at this URL http www cisco com univercd home home htm The Product Documentation DVD is created and released regularly DVDs are available singly or by subscription Registered Cisco com users can order a Product Documentation DVD product number DOC DOCDVD or DOC DOCDVD SUB from Cisco Marketplace at the Product Documentation Store at t...

Page 7: ...imple Syndication PSIRT RSS feed Information about how to subscribe to the PSIRT RSS feed is found at this URL http www cisco com en US products products_psirt_rss_feed html Reporting Security Problems in Cisco Products Cisco is committed to delivering secure products We test our products internally before we release them and we strive to correct all vulnerabilities quickly If you think that you h...

Page 8: ...isco Technical Support Documentation website on Cisco com features extensive online support resources In addition if you have a valid Cisco service contract Cisco Technical Assistance Center TAC engineers provide telephone support If you do not have a valid Cisco service contract contact your reseller Cisco Technical Support Documentation Website The Cisco Technical Support Documentation website p...

Page 9: ... recommended solutions If your issue is not resolved using the recommended resources your service request is assigned to a Cisco engineer The TAC Service Request Tool is located at this URL http www cisco com techsupport servicerequest For S1 or S2 service requests or if you do not have Internet access contact the Cisco TAC by telephone S1 or S2 service requests are those in which your production ...

Page 10: ...com go guide Cisco Marketplace provides a variety of Cisco books reference guides documentation and logo merchandise Visit Cisco Marketplace the company store at this URL http www cisco com go marketplace Cisco Press publishes a wide range of general networking training and certification titles Both new and experienced users will benefit from these publications For current Cisco Press titles and o...

Page 11: ...de for Cisco Unified Videoconferencing 3500 MCU Release 5 1 OL 12051 01 Preface World class networking training is available from Cisco You can view current offerings at this URL http www cisco com en US learning index html ...

Page 12: ...xii Troubleshooting Guide for Cisco Unified Videoconferencing 3500 MCU Release 5 1 OL 12051 01 Preface ...

Page 13: ... describes the following topics Resolving MCU Failure to Register with the Gatekeeper page 1 2 Resolving Front Panel LED Issues page 1 2 Resolving MCU Conference Initiation Failure page 1 3 Resolving Conference Access Failure page 1 4 Resolving Cascading Failure page 1 4 Resolving Quality Issues in Cascaded Conferences page 1 5 Resolving Endpoint Disconnection Issues page 1 5 Resolving Unexpected ...

Page 14: ...he MCU is assigned a unique IP address Verify that the subnet mask and default gateway subnet mask are set correctly LAN or cable problem Verify the switch port settings Verify that the Ethernet cable is straight through Try another Ethernet cable The MCU cannot register to a Cisco MCM The Cisco MCM may not understand the syntax of the label MCU Change the registration name of the MCU to GW in the...

Page 15: ...rify that the Conferences can be created using option is set to Scheduler Web Control API and dial in in MCU Settings Advanced There are not enough MCU resources available for the desired conference Verify that the service you are using reserves the minimum number of parties 2 and allows expansion up to the required number of parties Verify that current calls are not utilizing all resources by che...

Page 16: ...can join successfully Possible Causes Verification Steps The invited conference does not exist and the remote MCU is not in Ad Hoc Scheduler Web Control API and dial in mode Using the remote MCU web interface verify that the remote conference exists or that the Conferences can be created using option is set to Scheduler Web Control API and dial in in MCU Settings Advanced If ad hoc conferencing is...

Page 17: ... topology used for example chain topology used unnecessarily One single central MCU should invite all other cascaded MCUs We recommend that you do not have more than one level of cascaded MCUs Use a star topology where the central MCU is in the center of the star and other cascaded MCU modules are on the arms of the star Possible Causes Verification Steps Unreliable network link Check network link...

Page 18: ... Verify that H 239 is enabled on the endpoint Make a point to point call to another endpoint and verify that you can start a presentation Presentation is not configured in the MCU service used in your conference Configure the service to support presentation in MCU Services MCU presentation definitions in the service are not supported by your endpoint frame rate frame size codec Check that your end...

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