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Next Gen Access Architecture

Next Gen Access Architecture. CCAP (CMAP) Program at Comcast SCTE 2011. July, 2011. Why would MSOs need CCAP?. Engineering: Capacity and efficiency , frees significant HE capacity 50% space savings with 4x capacity 60% power savings plus less cooling

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Next Gen Access Architecture

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  1. Next Gen Access Architecture CCAP (CMAP) Program at Comcast SCTE 2011 July, 2011

  2. Why would MSOs need CCAP? • Engineering:Capacity and efficiency, frees significant HE capacity • 50% space savings with 4x capacity • 60% power savings plus less cooling • Improve existing UPS and battery backup performance • Architecture:Simplicity and flexibility is already a key driver • Minimum, simplified combining wiring • Full-spectrum, MPEG/DOCSIS QAMs, easier migration to ADS • Future proof, single access platform • Purchasing:Cost will quickly become a big driver • CMTS 4-6 DOCSIS channel cost equals CCAP 16 DOCSIS + 16 MPEG Channels !! • Operations:Reliability and manageability will also drive adoption • Fully redundant (N+1 LC & 1+1 Commons) • Configuration change between QAM types vs. equipment swap-out • Much shorter maintenance window (ISSU) • Far less equipment to manage and maintain

  3. CCAP space efficiency example Top view of headend rack line-up Each box represents a rack Example for illustrative purposes After CCAP: 64 NC QAMs per SG Digital Broadcast Today’s HE: 16 NC QAMs per SG 4x Capacity SDV VOD CMTS 1/2 Space Combiner & Amps Lasers & Receivers CCAP eliminates the need for headend expansions • NOTES: • Deployment example assuming 40K homes passed, 200 nodes, 140 D3 HSD service groups at 16 SG/chassis, 120 VOD SGs @ 6QAMs/SG and 4 QAMs/RF Port, and same SDV service groups. • Larger or smaller headends would scale accordingly, but savings will be proportional.

  4. CCAP yearly power savings in a typical headend CCAP saves 60% of power, not including cooling energy savings! UPS and battery requirements are also reduced – existing capacity will last considerably longer when power is interrupted.

  5. Converged Cable Access Platform • Combines the functions of the CMTS and Edge QAM • Implements all narrowcast and broadcast QAMs CCAP in a nutshell CCAP DS Port Assignments HSD CDV Simplify, and eventually eliminate RF Combining DOCSIS DS RF Port AVS VODnDVR SDV MPEG TS 32/48/64 NC QAMs + 96 BC QAMs Broadcast Narrowcast & Broadcast Digital Services Modular CCAP Integrated CCAP CCAP Legacy OOB Analog US Split Legacy OOB DS

  6. Operational features of CCAP Open decryption/encryption interfaces

  7. Integrated vs. Modular CCAP components Similar boxes for both HE Router ICCAP Single CCAP Vendor I-CCAP IP Sub & Flow Management Routing PASI HE Router / M-CCAPPS ICCAP Best-in-Class Expertise M-CCAP AS Each approach has pros and cons

  8. CCAP use cases examples (two of several) Add density with CCAP Access Shelf in DS-only mode Where I-CMTS exists For M-CMTS markets HE Router HE Router Shorter Term BCast VOD SDV Bcast VOD SDV HE Router UR UR Today UR M-CMTS Core UEQAM I-CMTS UR M-CMTS Core M-CCAP AS in DS mode US US DS DS US DS Eventually I-CCAP or… …M-CCAP HE Router • Migrate to I-CCAP & relocate CCAP-AS • Or, add CCAP PS • Existing Router w/PS SW • Add US LCs HE Router HE Router / M-CCAP PS Longer Term Options Future UR I-CCAP UR UR UR I-CCAP M-CCAP AS US DS US US DS DS

  9. CCAP migration options Capacity Augment New Service Deployment Infrastructure Upgrade • Add CCAPs for all SGs in key HEs • Independent of services • Existing equipment relocated • Add CCAP for new service • Maintain existing equipment for existing services • Eventually integrate other services into CCAP • Drop in CCAP as SGs are split or EQAMs/CMTSs are added • Keep current equipment and eventually move to other locations Broadcast and OOB Broadcast and OOB Broadcast and OOB SDV/VOD EQAMs SDV/VOD EQAMs CCAP CCAP for New Service CMTSs CCAP CMTSs Combiner Combiner Combiner Lasers and Receivers Lasers and Receivers Lasers and Receivers Existing SGs Existing SGs New SGs Existing SGs

  10. Preparing for CCAP • Work underway in the many areas at Comcast: • Systems: configuration, monitoring, logging, fault detection, trouble management, inventory, databases, etc. • Operations: changes to deploy and manage single device • Testing: process (who/how/when and what order), and edge QAM, DRFI performance, new features, and new services (RS-DVR, AVS) • Deployment planning: • Network models for system types: very large to very small HEs • Trials starting in 2011: operational readiness focus, not equipment • New combiner equipment: optimized for CCAP and remaining inputs • Working with Motorola and Cisco on encryption licensing model and ECMG implementation plan

  11. CCAP operational readiness trial – concept diagram • CCAP-like network to understand technical/ops issues and prepare • Operational processes, tools, network engineering, etc. • The trial is about MSO operations, NOT to test equipment • The scope will be minimal but meaningful (few service groups) Collaborative effort with Cox and Rogers OTHER QAMs ANALOG TEST ~120 2-4 DTA M-CCAP AS in DS-only mode Combiner 6 DS BCAST 4 SDV 20-24 4 VOD All services 4 M-CMTS Core US

  12. Completing CCAP specifications • Large team of industry experts developing CCAP specs • Key engineers and architects from all EQAM and CMTS vendors • Agreements with Cablevision, Charter, Cox, LGI/UPC, NCTC, Rogers, and others, plus working with TWC on common requirements • Direct support from CableLabs; now working on CL CCAP Specs • Cable Europe Labs representing the 15 largest MSOs in Europe • MSO specification documents: Phase 1 completed in March 2010 (focus on HW & Functions) Phase 2 completed in July 2010 (added Config & Mgmt and PASI) Phase 3 completed in Nov. 2010 (expanded all specs; wrote CL TR) • Phase 4 in progress, adding adv. Functions, ATP and updated CL TR (target Sept. ’11) • CableLabs working on CCAP OSSI and PASI specs • Changed name to converge TWC and Comcast efforts

  13. Thank You!! Summary and conclusions • CCAP Platform is the Next Gen CMTS and Edge QAM • Natural technology evolution; cost effective, simple and redundant • Supports all digital services (VOD, SDV, Broadcast, HSD/voice) • Easy migration from MPEG-TS to DOCSIS • Many MSOs need the CCAP ASAP • Operational simplicity and benefits are staggering • CCAP QAMs are much more cost effective • Expect initial trials in 2011 and initial deployments in 2012 • Please let us know of any interest in participating, or of questions, comments and especially suggestions jorge_salinger@cable.comcast.com saifur_rahman@cable.comcast.com

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