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© 1997 CableLabs® Proprietary and Confidential PacketCable Project Terry D. Shaw, Ph. D. CableLabs303email@example.com
© 1997 CableLabs® Proprietary and Confidential Overview n Service concept n Project structure and timeline n Interoperability Testing
© 1997 CableLabs® Proprietary and Confidential Characteristics of Cables High- Speed Data Service n Always on / Always connected n Speed scales depending upon need u High speed>e.g. Internet Access u Low speed >e.g. Telemetry u Medium speed>e.g. Telephony n Streaming / Isochronous more difficult
© 1997 CableLabs® Proprietary and Confidential Integrated Services Network DATA Video Control DATA VIDEO Analog & Digital Broadcast Video on Demand Other Downstream Upstream
© 1997 CableLabs® Proprietary and Confidential Service Concept Voice Telephony Voice Telephony Local Local LEC Bypass LEC Bypass Long Distance Long Distance Video Telephony Video Telephony Other Services Over Telco Circuit Other Services Over Telco Circuit PBX Extension PBX Extension Fax PLUS Fax PLUS Initial Services:Subsequent:
© 1997 CableLabs® Proprietary and Confidential Network Architecture PBX Internet PSTN CableLabs Node MSO 2 Node MSO 5 Node MSO 4 Node MSO 1 Node MSO 6 Node MSO 7 Node Cable Intranet MSO 3 Node
© 1997 CableLabs® Proprietary and Confidential PacketCable Concept n Packet-based applications running over nationwide mesh of cable and backbone IP networks n Hop off data network to PSTN only as last resort
© 1997 CableLabs® Proprietary and Confidential PacketCable Concept (contd) Specification effort focuses on applications layer software and hardware components Physical Transport Network Applications
© 1997 CableLabs® Proprietary and Confidential Project Objectives n Develop overlay packet network for cable systems u Support broad family of services n Open, interoperable standards for North American cable market n Initial focus on IP telephony and video u Described in Product Definition Statement
© 1997 CableLabs® Proprietary and Confidential Project Overview n Four focused areas of effort u Product definition u Technical specification/reference architecture u Product testing u Information sharing
© 1997 CableLabs® Proprietary and Confidential Product Specification Working Group Objectives n Translate product definition statement into functional/technical requirements n Develop reference architecture/technical specification necessary for implementation u Identify timeline for phased approach n Communicate functional requirements of industry to vendor community n Build on existing standards
© 1997 CableLabs® Proprietary and Confidential Product Evaluation n Goal: Laboratory testing of IP products u Performance across cable systems u Technology validation u Identify and specify key quality parameters u Interoperability n Timeline: u Experiential: November 1997 - June 1998 u Interoperability: March 1998 - December 1998
© 1997 CableLabs® Proprietary and Confidential Fast-Track Performance Validation n Basic system operations: Does it work? n Validation of protocol interoperability n Test key parameters under stressed conditions u Traffic loading and latency issues u Network integrity u Quality of Service (QoS)
© 1997 CableLabs® Proprietary and Confidential PSTN Cable Intranet Internet HEADEND LAN GW GK H.323 Terminal H.323 Terminal CMTS GW HFC Network HEADEND LAN GW CMTS GK HFC Network PSTN Vendor Evaluation Test Setup
© 1997 CableLabs® Proprietary and Confidential www.packetcable.com
Thema: Menü Ansicht, Master, Folien-Master 1 ITU - IP Telephony Workshop June Standards for IP-telephony P.A.Probst, External Relations Swisscom.
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Johan Garcia Karlstads Universitet Datavetenskap 1 Datakommunikation II Signaling/Voice over IP / SIP Based on material from Henning Schulzrinne, Columbia.
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© 2008 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 1 Chapter 6: Broadband Solutions Connecting Networks.
Cable Television Laboratories, Inc. January 2005 DOCSIS ® Overview.
Chapter 17 Networking Patricia Roy Manatee Community College, Venice, FL ©2008, Prentice Hall Operating Systems: Internals and Design Principles, 6/E William.
Security in VoIP Networks Juan C Pelaez Florida Atlantic University Security in VoIP Networks Juan C Pelaez Florida Atlantic University.
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