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Full Description
Cisco TelePresence (TM) 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 problemsTim Szigeti, CCIE (R) No. 9794, technical leader within the Cisco (R) 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 firewallsThis book is part of the Cisco Press (R) 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
Contents
ContentsIntroduction xixPart I: Introducing Cisco Telepresence 3Chapter 1 What Is Telepresence? 5Evolution of Video Communications 5It's All About the Experience! 9How Is TelePresence Different Than Video Conferencing? 11Quality 12Simplicity 13Reliability 13Bandwidth Requirements 14Chapter 2 Cisco TelePresence Solution Overview 17The Cisco TelePresence Solution 17Cisco TelePresence Codec 18Industry-Leading Audio and Video 20Video Resolution and Compression Formats 21Audio Resolution and Compression Formats 23Collaboration Tools 24Audio and Video Multiplexing 25Cisco 7975 Series IP Phone 25Cisco TelePresence System 3000 26Three Native 1080p High-Definition Cameras 27Three 65-Inch High-Definition Plasma Displays 27Purpose-Built Meeting Table, Integrated Projector, and Lighting Shroud 28Multichannel Wide-Band Audio 29Cisco TelePresence System 3200 29Extended Camera Focal View 30Second Row Seating 30Extension of Each Table Segment 31Optional Displays for Shared Content 31Cisco TelePresence System 1000 32One Native 1080p High-Definition Camera 33One 65-Inch High-Definition Plasma Display 33Integrated Lighting Shroud 33One Wide-band Microphone and Speaker 34Cisco TelePresence System 500 34One Native 1080p High-Definition Camera 34One 37-Inch High-Definition LCD Display 34Integrated Lighting Shroud 36Integrated Wideband Microphone and Speaker 36Multiple Configuration Options 36Cisco Unified Communications Manager 36Cisco TelePresence Manager 38Calendaring Integration and Management 38One-Button-to-Push Meeting Access 38Resource and Location Management for Cisco TelePresence Multipoint Switch 39CTS System Management and Reporting 41Concierge Services 41Cisco TelePresence Multipoint Switch 42Cisco TelePresence Inter-Company 43Operation, Administration, and Monitoring 45Related TelePresence Services 47Cisco TelePresence Planning, Design, and Implementation 47Cisco TelePresence Essential Operate Service 49Cisco TelePresence Select Operate and TelePresence Remote Assistance Service 49Part II: Telepresence Technologies 53Chapter 3 TelePresence Audio and Video Technologies 55Codec Design Requirements 55Codec System Architecture 56Codec Physical Design 56Master and Slave Codec Architecture 56Codec Operating System Software 59Encoding and Packetization 61Camera and Auxiliary Video Inputs 62Video Encoding 63Audio Encoding 68Real-Time Transport Protocol 70TelePresence Packet Rates 73Depacketization and Decoding 77Managing Latency, Jitter, and Loss 77Summary of Latency, Jitter, Loss Targets and Thresholds, and Actions 82Demultiplexing and Decoding 83Audio-Only Participants 87Dual-Tone Multi-Frequency 89RFC 2833 90Key-Pad Markup Language 90Other Protocols 90How DTMF Tones Are Processed in Cisco TelePresence 91Interoperability with Out-of-Band Collaboration Applications 92Interoperability with Video Conferencing 92Interoperability RTP Channels 93Chapter 4 Connecting TelePresence Systems 99Internal TelePresence System Connections 99Connecting a CTS-500 System 99Connecting a CTS-1000 System 100Connecting a CTS-3000 System 101Connecting a CTS-3200 System 104TelePresence Network Interaction 106TelePresence Network Deployment Models 111Intracampus Deployment Model 112Intra-Enterprise Deployment Model 112Intercompany Deployment Model 114TelePresence Phases of Deployment 116Chapter 5 Network Availability Technologies 121Network Availability 121Device Availability Technologies 125Stackwise/Stackwise Plus 126Nonstop Forwarding with Stateful Switchover 128Network Availability Protocols 132L2 Network Availability Protocols 132L3 Network Availability Protocols 147Operational Availabilities Technologies 155Generic Online Diagnostics 156Chapter 6 Network Quality of Service Technologies 161Modular QoS Command-Line Interface 161Classification Tools 162Class Maps 162Network Based Application Recognition 163Marking Tools 165Ethernet 802.1Q/p CoS 165MPLS EXP 166Differentiated Services Code Points 167Policing Tools 172Single-Rate Policers 173Dual-Rate Policers 174Shaping Tools 178Queuing Tools 181CBWFQ 181LLQ 183Hardware Queuing: 1PxQyT 187Dropping Tools 190WRED 192DSCP-Based WRED 193Explicit Congestion Notification 194HQoS 196Chapter 7 TelePresence Control and Security Protocols 203Network Control Protocols 203IEEE 802.1p/Q: VLAN Tagging and CoS 203IEEE 802.1p/Q Utilization Within Cisco TelePresence Networks 205IEEE 802.3af: Power over Ethernet 205Network Time Protocol (NTP) 206Dynamic Host Configuration Protocol (DHCP) 207Signaling Protocols 208Session Initiation Protocol (SIP) 208XML/SOAP 213AXL/SOAP 216JTAPI, TAPI, and CTIQBE 216WebDAV 217LDAP 217Network Management Protocols 217Cisco Discovery Protocol 218Trivial File Transfer Protocol (TFTP) 222Simple Network Management Protocol 223TelePresence Security Protocols 226Transport Layer Security (TLS) 226Secure Real-Time Transport Protocol (sRTP) 228Bandwidth Impact of Enabling TelePresence Encryption 232Secure Shell (SSH) 232Secure Hypertext Transfer Protocol (HTTPS) 233Part III: Telepresence System Design 237Chapter 8 TelePresence Room Design 239Room Dimensions, Shape, and Orientation 239Width Requirements 240Depth Requirements 245Height Requirements 249Angles, Shape, and Orientation 253Doors and Windows 258Wall, Floor, and Ceiling Surfaces 259Wall Surfaces 259Flooring Surfaces 262Ceiling Surfaces 263Lighting and Illumination 265Considering Light Angles and Direction 266Considering Light Color Temperature 266Measuring Light Intensity 269Light Fixture and Bulb Considerations 271Light Fixture Ballast Considerations 275Acoustics 276Measuring Ambient Noise 277Measuring Reverberation 279Targeted and Maximum Ambient Noise and Reverberation Levels 281Controlling Ambient Noise and Reverberation Levels 281Scenarios for Mitigating Ambient Noise and Reverberation 283HVAC 283HVAC Air Noise Diffusion Considerations 289Power Requirements 290Network Connectivity 294Chapter 9 TelePresence Network Design Part 1: Availability Design 297TelePresence Availability Considerations and Targets 297Highly Available Campus Design for TelePresence 299Redundancy 300Hierarchy 301Modularity 303Multitier Campus Distribution Block Design 304Virtual Switch Campus Distribution Block Design 307Routed Access Campus Distribution Block Design 311Highly Available Branch Designs for TelePresence 330Dual-Tier Branch Profiles 331Multitier Branch Profiles 333Chapter 10 TelePresence Network Design Part 2: Quality of Service Design 339TelePresence QoS Considerations 339TelePresence Service Level Requirements 339TelePresence DiffServ Strategy 349Campus QoS Design for TelePresence 356Catalyst 3560/3750 QoS Design for TelePresence 359Catalyst 4500/4900 QoS Design for TelePresence 366Catalyst 6500 QoS Design for TelePresence 374Branch QoS Designs for TelePresence 381LLQ Versus CBWFQ over the WAN/VPN? 383Branch MPLS VPN QoS Considerations and Design 392Chapter 11 TelePresence Firewall Design 407Cisco Firewall Platforms 407Firewall Deployment Options 409Transparent Versus Routed Mode 409Equal Versus Unequal Interface Security Levels 410Network Address Translation 411Application Layer Protocol Inspection 413TLS Proxy Functionality 413TelePresence Protocol Requirements 413Device Provisioning Flows 414Configuration Download and Device Registration Protocols 416Call Scheduling and Services Flows 419Call Signaling Flows 421Media Flows 421Management Flows 424Example Firewall Configuration 428Chapter 12 TelePresence Call-Signaling Design 435Overview of TelePresence Call-Signaling Components 435CUCM: SIP Registrar and Back-to-Back User Agent 435CTS Endpoints: SIP User Agents 437CTMS: SIP Trunk 437Cisco TelePresence SBC and CUBE: B2BUA and Media Proxy 437Session Description Protocol 438Bandwidth Negotiation 440Media Negotiation 440Other Negotiated Parameters 441CTS Boot Process 441Single-Cluster Call Signaling Examples 443CTS Endpoint Registration 443Call Setup 445Call Termination 448Call Hold 449Intercluster Call Signaling 450Single Enterprise Signaling 450Business-to-Business Signaling 450Chapter 13 Multipoint TelePresence Design 455CTMS Overview 455CTMS Meeting Types 457CTMS Meeting Features 459Multipoint Resources 462Geographical Resource Management 463Quality of Service 463Meeting Security 464Meeting Management 465Audio and Video Flows in a Multipoint TelePresence Design 466Audio in a Multipoint TelePresence Meeting 466Video in a Multipoint TelePresence Meeting 467TelePresence Interoperability 469Network Design Considerations for Multipoint TelePresence 472Deployment Models 472Additional Latency 473Bandwidth Considerations 475Burst Considerations 477Positioning of the CTMS Within the Network 481Placement Within the Campus 481Placement within the Branch 482LAN Switch Platform Considerations 482WAN Circuit Support 483Basic Configuration Requirements for Multipoint TelePresence 484CUCM Configuration Requirements 484CTMS Configuration Requirements 484Chapter 14 Inter-Company TelePresence Design 487End-to-End Application Requirements 488Experience Quality Requirements 488Ease of Use Requirements 489Reliability Requirements 489Security Requirements 489Nonproprietary Requirements 490Scalability Requirements 490Solution Components 490Network Architecture and Security 492Public E.164 Dialing 494Inter-VPN Connectivity 495End-to-End Application-Layer Security 510Inter-Company Deployment Models 517Converged Versus Overlay Access Circuits 518Centralized Inter-Company Access Circuit 518Multiple, Decentralized Inter-Company Access Circuits 523Inter-Company Dialing Models 528Scheduling Inter-Company Meetings 531Multiple Service Provider Peering 533Appendix Protocols Used in Cisco TelePresence Solutions 539TOC, 9781587055935, 5-4-09
