1. Motorola DOCSIS® 3.0 & Channel Bonding Introduction Joshua Eum Director of Solutions Sales June 13, 2006

2. Today’s Agenda Channel Bonding Introduction M-CMTS Introduction DOCSIS 3.0 Update Motorola Summary

3. Subscriber Bandwidth Escalation Continues Voice, Video, Gaming and Data Services are Driving new and higher bandwidth Requirements –Customers are requiring greater Capacity –Competition is Fierce DSL is providing much higher bandwidth – ex. 50 Mbps with VDSL/ADSL2 Some Telco’s deploying higher bandwidth via Fiber-to-the- Home/Curb Satellite going to 1000+ Channels –Some Customers are even requiring more Bandwidth then a single Downstream or Upstream can deliver; higher rate limits Cable Operators need a Higher Bandwidth Downstream & Upstream Solution!

4. DOCSIS Evolution: Higher Bandwidth with each Successive Version DOCSIS 1.0/1.1: Higher Upstream (US) and Downstream (DS) Speeds & Greater Density lead to additional services & Lower Subscribers per DS/US DOCSIS 2.0: Additional Bandwidth in US Only: ATDMA, SCDMA, Logical Channels Ingress Noise Cancellation created Additional Bandwidth in US only DOCSIS 3.0: Bonding together Downstream & Upstream Channels to create higher bandwidth Logical Channels Draft Specification within CableLabs® Standards Group Downstream definition happening with M-CMTS Edge QAM effort Downstream works with some existing CMTS Hardware Requires new CM Hardware

5. Increasing Bandwidth by transmitting DOCSIS frames across multiple RF Channels Standards effort for both Upstream (US) and Downstream (DS) direction Standard will logically bond together some number of US or DS RF Channels and then multiplex packet transmission over those RF channels Higher Bandwidth via Channel Bonding Bonded RF Channels

6. Current DOCSIS Downstream Bandwidth CMTS CM Independent Downstream Channels Downstream IP Packets from Internet

7. DOCSIS Downstream Bandwidth with Channel Bonding Bonded Downstream Channels CMTS Downstream IP Packets from Internet CM

8. M-CMTS Network Diagram Regional Area Network CIN GBE Switch MPEG Server HFC Upstream Edge DEPI EQAM CMTSCMTS DTI MPEG EQAM M-CMTS: Modular CMTS DTI: DOCSIS Timing Interface DEPI: Downstream External Phy I/F GBE: Gigabit Ethernet EQAM: Edge QAM ERMI: Edge Resource Mgr I/F DC: Downstream Channel CIN: Converged Interconnect Network CMTS Core DRFI Edge Resource Manager ERMI STB 3.0 CMs 2.0 CMs DCs NSI DEPI T-MPT

9. M-CMTS Goals “Independent scalability of CMTS functions from DS PHY” –Means: need to add DS channels without adding US channels “Lower the cost to deliver video over DOCSIS service to be competitive with today’s MPEG VOD” –2005 Incremental DOCSIS DS channel cost: $24K ASP for 2DS+8US CMTS blade = $12, 000 per DS channel –2005 Incremental MPEG VOD channel cost: $12K for 24-channel MPEG EQAM = $500 per DS channel But with no rate limiting, scheduling, QOS, encryption, VOIP compression, or RF switching

10. What’s important and not for M-CMTS What’s important is that the two M-CMTS goals be met: –De-coupling downstream and upstream capacity; and –Lowering the cost of downstream capacity. What’s important is the adoption of the DEPI specification by the EQAM industry. –Enables a transition to DOCSIS IPTV with DEPI EQAMs. What’s NOT important is the concept of separating the upstream PHY layer: –Separation into an “upstream shelf” and definition of an “Upstream Edge Physical Interface” (UEPI) –Independent vendor implementations of “CMTS Core” and “upstream shelf” MAC functions

11. DOCSIS 3.0 Features Channel Bonding – Upstream Channel Bonding – Downstream Channel Bonding IP Multicast –Source Specific Multicast –QoS Support for Multicast Security –Enhanced Traffic Encryption –Enhanced Provisioning Security –Certificate Revocation Network Management –CM Diagnostic Log –Enhanced Signal Quality Monitoring –Service Statistics Reporting IPv6 –IPv6 Provisioning & Management of CMs –Alternative Provisioning Mode & Dual-stack Management Modes for CMs –IPv6 Connectivity for CPEs Physical Layer –Upstream Frequency Range Extension Business Services over DOCSIS –Layer 2 Virtual Private Networks –Support for T1/E1 Services

12. Motorola: M-CMTS/D3.0 Leadership Motorola driving M-CMTS & DOCSIS 3.0 Standards: Channel Bonding, DRFI with Mike Patrick, Jack Moran Motorola Acquires Broadband Innovations for High-density, Low-Power RF and DOCSIS 3.0 DRFI Compliance Motorola partners with Juniper for M-CMTS Core Module and to bind together DOCSIS & IP Services Motorola demonstrates highest performing Channel Bonding:140 Mbps over 4 channels solution at CES Show – January 2005 Motorola Partners with rgb Networks to bring its customers leading M-CMTS Edge QAM Motorola working closely with Broadcom for advanced MAC & Phy Solutions

13. Summary Customers are requiring greater Capacity Competition is Fierce Some Customers are even requiring more Bandwidth then a single Downstream or Upstream can deliver; higher rate limits Cable Operators need a Higher Bandwidth Downstream & Upstream Solution! DOCSIS 3.0 & Channel Bonding provide this solution Motorola is delivering on these capabilities Today! CMTS Huge Mbps to 1 or more Households 40 Mbps DS Bonded DS Channels