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Cisco TelePresence Fundamentals

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Cisco TelePresence Fundamentals


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  • Copyright 2009
  • Dimensions: 7-3/8" x 9-1/8"
  • Pages: 624
  • Edition: 1st
  • Book
  • ISBN-10: 1-58705-593-7
  • ISBN-13: 978-1-58705-593-5

Cisco TelePresence™ Systems (CTS) create live, face-to-face meeting experiences, providing a breakthrough virtual conferencing and collaboration experience that transcends anything previously achievable by videoconferencing. Although the business case for deploying CTS is compelling, implementing it requires advanced knowledge of the latest networking technologies, an attention to detail, and thorough planning. In this book, four leading CTS technical experts cover everything you need to know to successfully design and deploy CTS in your environment.

The authors cover every element of a working CTS solution: video, audio, signaling protocols and call processing, LAN and WAN design, multipoint, security, inter-company connectivity, and much more. They deliver start-to-finish coverage of CTS design for superior availability, QoS support, and security in converged networks. They also present the first chapter-length design guide of it’s kind detailing the room requirements and recommendations for lighting, acoustics, and ambience within various types of TelePresence rooms.

Cisco Telepresence Fundamentals is an indispensable resource for all technical professionals tasked with deploying CTS, including netadmins, sysadmins, audio/video specialists, VoIP specialists, and operations staff. This is the only book that:

  • Introduces every component of a complete CTS solution and shows how they work together
  • Walks through connecting CTS in real-world environments
  • Demonstrates how to secure virtual meetings using Cisco firewalls and security protocols
  • Includes a full chapter on effective TelePresence room design
  • Walks through every aspect of SIP call signaling design, including both single-cluster and intercluster examples for use in a TelePresence environment
  • Provides prequalification, room, and network path assessment considerations to help you anticipate and avoid problems

Tim Szigeti, CCIE® No. 9794, technical leader within the Cisco® Enterprise Systems Engineering team, is responsible for defining Cisco TelePresence network deployment best practices. He also coauthored the Cisco Press book End-to-End QoS Network Design. Kevin McMenamy, senior manager of technical marketing in the Cisco TelePresence Systems Business Unit, has spent the past nine years at Cisco supporting IP videoconferencing, video telephony, and unified communications. Roland Saville, technical leader for the Cisco Enterprise Systems Engineering team, tests and develops best-practice design guides for Cisco TelePresence enterprise deployments. Alan Glowacki is a Cisco technical marketing engineer responsible for supporting Cisco TelePresence customers and sales teams.

  • Use Cisco TelePresence Systems (CTS) to enhance global teamwork and collaboration, both within your own enterprise and with your customers, partners, and vendors
  • Understand how the various components of the Cisco TelePresence Solution connect and work together
  • Integrate CTS into existing LAN, enterprise, and service provider networks
  • Successfully design and deploy a global TelePresence network
  • Understand the importance of room dimensions, acoustics, lighting, and ambience and how to properly design the physical room environment
  • Provide the high levels of network availability CTS requires
  • Leverage the Cisco quality of service (QoS) tools most relevant to CTS network provisioning and deployment
  • Systematically secure CTS using TLS, dTLS, sRTP, SSH, and Cisco firewalls

This book is part of the Cisco Press® Fundamentals Series. Books in this series introduce networking professionals to new networking technologies, covering network topologies, sample deployment concepts, protocols, and management techniques.

Category: IP Communications

Covers: Cisco TelePresence Systems

Sample Content

Online Sample Chapter

Cisco TelePresence Room Design

Sample Pages

Download the sample pages (includes Chapter 8 and Index)

Table of Contents


    Introduction            xix

Part I:                 Introducing Cisco Telepresence  3

Chapter 1           What Is Telepresence? 5

    Evolution of Video Communications                5

    It’s All About the Experience!  9

    How Is TelePresence Different Than Video Conferencing?  11

        Quality  12

        Simplicity  13

        Reliability  13

        Bandwidth Requirements  14

Chapter 2           Cisco TelePresence Solution Overview  17

    The Cisco TelePresence Solution  17

    Cisco TelePresence Codec  18

        Industry-Leading Audio and Video  20

        Video Resolution and Compression Formats  21

        Audio Resolution and Compression Formats  23

        Collaboration Tools  24

        Audio and Video Multiplexing  25

    Cisco 7975 Series IP Phone  25

    Cisco TelePresence System 3000  26

        Three Native 1080p High-Definition Cameras  27

        Three 65-Inch High-Definition Plasma Displays  27

        Purpose-Built Meeting Table, Integrated Projector, and
Lighting Shroud  28

        Multichannel Wide-Band Audio  29

    Cisco TelePresence System 3200  29

        Extended Camera Focal View  30

        Second Row Seating  30

        Extension of Each Table Segment  31

        Optional Displays for Shared Content  31

    Cisco TelePresence System 1000  32

        One Native 1080p High-Definition Camera  33

        One 65-Inch High-Definition Plasma Display  33

        Integrated Lighting Shroud  33

        One Wide-band Microphone and Speaker  34

    Cisco TelePresence System 500  34

        One Native 1080p High-Definition Camera  34

        One 37-Inch High-Definition LCD Display  34

        Integrated Lighting Shroud  36

        Integrated Wideband Microphone and Speaker  36

        Multiple Configuration Options  36

    Cisco Unified Communications Manager  36

    Cisco TelePresence Manager  38

        Calendaring Integration and Management  38

        One-Button-to-Push Meeting Access  38

        Resource and Location Management for Cisco TelePresence Multipoint Switch  39

        CTS System Management and Reporting  41

        Concierge Services  41

    Cisco TelePresence Multipoint Switch  42

    Cisco TelePresence Inter-Company  43

    Operation, Administration, and Monitoring  45

    Related TelePresence Services  47

        Cisco TelePresence Planning, Design, and Implementation  47

        Cisco TelePresence Essential Operate Service  49

        Cisco TelePresence Select Operate and TelePresence Remote Assistance Service  49

Part II:          Telepresence Technologies  53

Chapter 3           TelePresence Audio and Video Technologies  55

    Codec Design Requirements  55

    Codec System Architecture  56

        Codec Physical Design  56

        Master and Slave Codec Architecture  56

        Codec Operating System Software  59

    Encoding and Packetization  61

        Camera and Auxiliary Video Inputs  62

        Video Encoding  63

        Audio Encoding  68

        Real-Time Transport Protocol  70

        TelePresence Packet Rates  73

    Depacketization and Decoding  77

        Managing Latency, Jitter, and Loss  77

        Summary of Latency, Jitter, Loss Targets and Thresholds,
and Actions  82

        Demultiplexing and Decoding  83

    Audio-Only Participants  87

    Dual-Tone Multi-Frequency  89

        RFC 2833  90

        Key-Pad Markup Language  90

        Other Protocols  90

        How DTMF Tones Are Processed in Cisco TelePresence  91

    Interoperability with Out-of-Band Collaboration Applications  92

    Interoperability with Video Conferencing  92

        Interoperability RTP Channels  93

Chapter 4           Connecting TelePresence Systems  99

    Internal TelePresence System Connections  99

        Connecting a CTS-500 System  99

        Connecting a CTS-1000 System  100

        Connecting a CTS-3000 System  101

        Connecting a CTS-3200 System  104

    TelePresence Network Interaction  106

    TelePresence Network Deployment Models  111

        Intracampus Deployment Model  112

        Intra-Enterprise Deployment Model  112

        Intercompany Deployment Model  114

    TelePresence Phases of Deployment  116

Chapter 5           Network Availability Technologies  121

    Network Availability  121

    Device Availability Technologies  125

        Stackwise/Stackwise Plus  126

        Nonstop Forwarding with Stateful Switchover  128

    Network Availability Protocols  132

        L2 Network Availability Protocols  132

        L3 Network Availability Protocols  147

    Operational Availabilities Technologies  155

        Generic Online Diagnostics  156

Chapter 6           Network Quality of Service Technologies  161

    Modular QoS Command-Line Interface  161

    Classification Tools  162

        Class Maps  162

        Network Based Application Recognition  163

    Marking Tools  165

        Ethernet 802.1Q/p CoS  165

        MPLS EXP  166

        Differentiated Services Code Points  167

    Policing Tools  172

        Single-Rate Policers  173

        Dual-Rate Policers  174

    Shaping Tools  178

    Queuing Tools  181

        CBWFQ  181

        LLQ  183

        Hardware Queuing: 1PxQyT  187

    Dropping Tools  190

        WRED  192

        DSCP-Based WRED  193

        Explicit Congestion Notification  194

    HQoS  196

Chapter 7           TelePresence Control and Security Protocols  203

    Network Control Protocols  203

        IEEE 802.1p/Q: VLAN Tagging and CoS  203

        IEEE 802.1p/Q Utilization Within Cisco TelePresence Networks  205

        IEEE 802.3af: Power over Ethernet  205

        Network Time Protocol (NTP)  206

        Dynamic Host Configuration Protocol (DHCP)  207

    Signaling Protocols  208

        Session Initiation Protocol (SIP)  208

        XML/SOAP  213

        AXL/SOAP  216

        JTAPI, TAPI, and CTIQBE  216

        WebDAV  217

        LDAP  217

    Network Management Protocols  217

        Cisco Discovery Protocol  218

        Trivial File Transfer Protocol (TFTP)  222

        Simple Network Management Protocol  223

    TelePresence Security Protocols  226

        Transport Layer Security (TLS)  226

        Secure Real-Time Transport Protocol (sRTP)  228

        Bandwidth Impact of Enabling TelePresence Encryption  232

        Secure Shell (SSH)  232

        Secure Hypertext Transfer Protocol (HTTPS)  233

Part III:        Telepresence System Design  237

Chapter 8           TelePresence Room Design  239

    Room Dimensions, Shape, and Orientation  239

        Width Requirements  240

        Depth Requirements  245

        Height Requirements  249

        Angles, Shape, and Orientation  253

        Doors and Windows  258

    Wall, Floor, and Ceiling Surfaces  259

        Wall Surfaces  259

        Flooring Surfaces  262

        Ceiling Surfaces  263

    Lighting and Illumination  265

        Considering Light Angles and Direction  266

        Considering Light Color Temperature  266

        Measuring Light Intensity  269

        Light Fixture and Bulb Considerations  271

        Light Fixture Ballast Considerations  275

    Acoustics  276

        Measuring Ambient Noise  277

        Measuring Reverberation  279

        Targeted and Maximum Ambient Noise and Reverberation Levels  281

        Controlling Ambient Noise and Reverberation Levels  281

        Scenarios for Mitigating Ambient Noise and Reverberation  283

    HVAC  283

        HVAC Air Noise Diffusion Considerations  289

    Power Requirements  290

    Network Connectivity  294

Chapter 9           TelePresence Network Design Part 1: Availability Design  297

    TelePresence Availability Considerations and Targets  297

    Highly Available Campus Design for TelePresence  299

        Redundancy  300

        Hierarchy  301

        Modularity  303

        Multitier Campus Distribution Block Design  304

        Virtual Switch Campus Distribution Block Design  307

        Routed Access Campus Distribution Block Design  311

    Highly Available Branch Designs for TelePresence  330

        Dual-Tier Branch Profiles  331

        Multitier Branch Profiles  333

Chapter 10         TelePresence Network Design Part 2: Quality of Service Design  339

    TelePresence QoS Considerations  339

        TelePresence Service Level Requirements  339

        TelePresence DiffServ Strategy  349

    Campus QoS Design for TelePresence  356

        Catalyst 3560/3750 QoS Design for TelePresence  359

        Catalyst 4500/4900 QoS Design for TelePresence  366

        Catalyst 6500 QoS Design for TelePresence  374

    Branch QoS Designs for TelePresence  381

        LLQ Versus CBWFQ over the WAN/VPN?  383

        Branch MPLS VPN QoS Considerations and Design  392

Chapter 11         TelePresence Firewall Design  407

    Cisco Firewall Platforms  407

    Firewall Deployment Options  409

        Transparent Versus Routed Mode  409

        Equal Versus Unequal Interface Security Levels  410

        Network Address Translation  411

        Application Layer Protocol Inspection  413

        TLS Proxy Functionality  413

    TelePresence Protocol Requirements  413

        Device Provisioning Flows  414

        Configuration Download and Device Registration Protocols  416

        Call Scheduling and Services Flows  419

        Call Signaling Flows  421

        Media Flows  421

        Management Flows  424

    Example Firewall Configuration  428

Chapter 12         TelePresence Call-Signaling Design  435

    Overview of TelePresence Call-Signaling Components  435

        CUCM: SIP Registrar and Back-to-Back User Agent  435

        CTS Endpoints: SIP User Agents  437

        CTMS: SIP Trunk  437

        Cisco TelePresence SBC and CUBE: B2BUA and Media Proxy  437

    Session Description Protocol  438

        Bandwidth Negotiation  440

        Media Negotiation  440

        Other Negotiated Parameters  441

    CTS Boot Process  441

    Single-Cluster Call Signaling Examples  443

        CTS Endpoint Registration  443

        Call Setup  445

        Call Termination  448

        Call Hold  449

    Intercluster Call Signaling  450

        Single Enterprise Signaling  450

        Business-to-Business Signaling  450

Chapter 13         Multipoint TelePresence Design  455

    CTMS Overview  455

        CTMS Meeting Types  457

        CTMS Meeting Features  459

        Multipoint Resources  462

        Geographical Resource Management  463

        Quality of Service  463

        Meeting Security  464

        Meeting Management  465

    Audio and Video Flows in a Multipoint TelePresence Design  466

        Audio in a Multipoint TelePresence Meeting  466

        Video in a Multipoint TelePresence Meeting  467

    TelePresence Interoperability  469

    Network Design Considerations for Multipoint TelePresence  472

        Deployment Models  472

        Additional Latency  473

        Bandwidth Considerations  475

        Burst Considerations  477

    Positioning of the CTMS Within the Network  481

        Placement Within the Campus  481

        Placement within the Branch  482

        LAN Switch Platform Considerations  482

        WAN Circuit Support  483

    Basic Configuration Requirements for Multipoint TelePresence  484

        CUCM Configuration Requirements  484

        CTMS Configuration Requirements  484

Chapter 14         Inter-Company TelePresence Design  487

    End-to-End Application Requirements  488

        Experience Quality Requirements  488

        Ease of Use Requirements  489

        Reliability Requirements  489

        Security Requirements  489

        Nonproprietary Requirements  490

        Scalability Requirements  490

    Solution Components  490

    Network Architecture and Security  492

        Public E.164 Dialing  494

        Inter-VPN Connectivity  495

        End-to-End Application-Layer Security  510

    Inter-Company Deployment Models  517

        Converged Versus Overlay Access Circuits  518

        Centralized Inter-Company Access Circuit  518

        Multiple, Decentralized Inter-Company Access Circuits  523

        Inter-Company Dialing Models  528

        Scheduling Inter-Company Meetings  531

        Multiple Service Provider Peering  533

Appendix           Protocols Used in Cisco TelePresence Solutions  539

TOC, 9781587055935, 5-4-09


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