ARRIS® C4® CMTS C4 Cable Modem Termination System

ARRIS C4 CMTSC4 Cable Modem Termination System (CMTS)

C4 CMTS User DocumentationIssue 3.0 Release 5.2 STANDARD October 2008

ARRIS PROPRIETARY This document contains proprietary information of ARRIS Group, Inc. and is not to be disclosed or used except in accordance with applicable agreements. 2002-2008 ARRIS Group, Inc. All Rights Reserved 10/06/08

Copyright and Trademark InformationCadant C4 G2 IMS FlexCAM Software FlexPath Software ARRIS is a trademark of ARRIS Group, Inc. The C4 CMTS is a registered trademark of ARRIS Group, Inc. All other trademarks and registered trademarks are the property of their respective holders. Every attempt has been made to capitalize and spell correctly the trademarked and service marked terms used in this manual. ARRIS does not attest to the accuracy of these terms and their usage. Any misspelling or misuse of a term should not be construed as affecting the validity of its trademark or service mark. All information contained in this document is subject to change without notice. ARRIS reserves the right to make changes to equipment design or program components, as progress in engineering, manufacturing methods, or other circumstances may warrant. The G2 IMS product contains copyright material licensed from AdventNet, Inc. http://www.adventnet.com. All rights to such copyrighted material rest with AdventNet. The ARRIS C4 Cable Modem Termination System (CMTS) has been qualified by CableLabs for DOCSIS1.1 and by tComLabs for Euro-DOCSIS 1.1. In June, 2004, CableLabs announced that the C4 CMTS qualified for DOCSIS 2.0. DOCSIS, eDOCSIS, PacketCable, CableHome, CableOffice, OpenCable, CableCARD, and CableLabs are trademarks of Cable Television Laboratories, Inc. Broadcom is a registered trademark of the Broadcom Corporation, http://broadcom.com. DATA CONNECTION is a registered trademark of DATA CONNECTION LIMITED in the US and other countries.

Patent InformationThe ARRIS C4 Cable Modem Termination System (CMTS) is protected by U.S. and international patents including: 6,457,978 6,662,368 6,449,249 6,636,482 6,637,033 6,769,132 6,898,182 7,002,914 7,047,553 Additional ARRIS Group, Inc. patents pending. 2002-2008 ARRIS Group, Inc. All rights reserved. ii

STANDARD LICENSE AGREEMENT AND LIMITED WARRANTYThis Standard License Agreement and Limited Warranty (Agreement) applies to all ARRIS manufactured or otherwise ARRIS provided products (Products) and the corresponding current and subsequently provided versions of software, if any, whether embedded in the Products or used in conjunction with the Products, (Software). The Software in conjunction with the Products is referred to in this Agreement as the (System). If you (You or Purchaser) and ARRIS Group, Inc. (ARRIS) have entered into a separate written agreement, then, inconsistent terms between this Agreement and the separate agreement shall be governed by such separate agreement. If you do not agree to be bound by this Agreement, please return the Products to the Party from whom You acquired the Products. Use of the Products shall constitute acceptance of the terms hereof. 1. License Terms Subject to the terms herein, ARRIS grants You a royalty-free, non-exclusive, non-transferable, non-sublicensable license to use the Software with the Products, in binary object code form only. You may use third party software products or modules supplied by ARRIS solely with the System, unless the licensing terms of the third party software specify otherwise. You may not disclose the results of Software performance benchmarks to any third party without ARRIS prior written consent. All rights not specifically granted to You herein are retained by ARRIS. 2. Restrictions You and/or any third party agree not to (i) make any copies of the Software, (ii) modify, decompile, disassemble, separate, reverse engineer or otherwise attempt to derive any source code from the Software; (iii) transfer the Software to any third party without ARRIS written consent; (iv) export the Software or any of its underlying technology in contravention of U.S. and foreign export laws and regulations, or (v) if Products are included, use the Software other than in connection with the System. 3. Use The right to use the Software, or any individual feature thereof, may be restricted by a measure of usage. An expansion beyond a commercially reasonable usage level may require payment of an additional fee to ARRIS. 4. Software Developed at Private Expense The Software provided under this Agreement is commercial computer software developed exclusively at private expense, and in all respects are proprietary data belonging solely to ARRIS and/or it licensors. 5. Limitations on Liability NEITHER ARRIS NOR ITS LICENSORS SHALL BE LIABLE FOR INDIRECT, INCIDENTAL, PUNITIVE, CONSEQUENTIAL, EXEMPLARY, OR SPECIAL DAMAGES UNDER ANY THEORY OF LIABILITY, WHETHER ALLEGED AS A BREACH OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE AND REGARDLESS OF WHETHER YOU, ANY OTHER SOFTWARE USER, OR ANY THIRD PARTY SUFFERED SUCH DAMAGES, EVEN IF ARRIS AND/OR ITS LICENSORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT WILL ARRIS TOTAL LIABILITY TO YOU OR ANY THIRD PARTY ARISING OUT OF OR PURSUANT TO THIS 2002-2008 ARRIS Group, Inc. All rights reserved. iii

AGREEMENT EXCEED THE AMOUNT PAID BY PURCHASER TO ARRIS FOR THE SOFTWARE AND/ OR SYSTEM. 6. Term & Termination This Agreement takes effect upon Your acceptance of the terms hereof or Your first use of the Software and will remain in force until terminated in accordance hereunder. ARRIS may terminate this Agreement upon fifteen (15) days prior written notice upon Your material breach of this Agreement if such breach is not cured within such fifteen (15) day period. Notwithstanding the foregoing, this Agreement shall terminate immediately upon Your breach of any of the provisions of Section 2 above. 7. Ownership Title, ownership rights, and all intellectual property rights in and to the Software and/or System and any accompanying materials or documentation, and any copy of the foregoing, shall remain the sole and exclusive property of ARRIS and/or its licensors. You agree to abide by copyright laws and all other applicable laws, and acknowledge that the Software contains valuable confidential information and trade secrets of ARRIS and/or its licensors. 8. Your Indemnification to ARRIS You agree to defend, indemnify and hold ARRIS harmless from and against any costs, losses, liabilities and expenses (including attorneys fees) arising out of or relating to third party claims arising out of or related to Your use of the Software and/or System in contravention to the terms of this Agreement, including without limitation, any and all claims, actions, suits, or proceedings alleging fraud, breach of security, non-compliance with laws, breach of contract or negligence. 9. Patent Indemnification 9.1 ARRIS will indemnify, defend and hold You harmless against damages, liabilities and costs, excluding consequential and exemplary damages finally awarded against You and will, at ARRIS expense, defend any claim, suit or proceeding (Claim) brought against You insofar as such Claim is based on an allegation that the Products as provided to You directly infringe a United States patent or copyright. ARRIS will pay those costs and damages, including settlement costs awarded or agreed-upon, as applicable, as the result of the Claim, provided (i) You promptly notify ARRIS of the Claim (ii) You give ARRIS all applicable evidence in Your possession, custody or control, (iii) You give ARRIS reasonable assistance in and sole control of the defense and all negotiations for its settlement or compromise, and (iv) You have paid all fees due to ARRIS under this Agreement and continue to pay all such fees as such become due. 9.2 In the event of an infringement allegation for which ARRIS is obligated to indemnify You, ARRIS may at its discretion: (i) obtain a license that allows You to continue to use the accused Products, (ii) replace or modify the accused Products with changes that reasonably meet the ARRIS specification, so as to be non-infringing, or (iii) if (i) and (ii) are not commercially reasonable, repurchase ARRIS provided Products at its depreciated value based on a three-year amortization rate. If ARRIS provides any one of the options set forth in clauses (i) through (iii) above, ARRIS indemnity obligation under this Agreement shall be entirely fulfilled. ARRIS liability for patent infringement indemnification in this section shall not exceed the amount You paid for the Products finally found to infringe a valid US patent. 10. Limited Warranty IF YOU ACQUIRED THE PRODUCTS FROM ANYONE OTHER THAN ARRIS YOU DO NOT RECEIVE ANY OF THE WARRANTIES DIRECTLY FROM ARRIS. YOUR EXCLUSIVE WARRANTY, IF ANY, 2002-2008 ARRIS Group, Inc. All rights reserved. iv

COMES FROM THE PARTY FROM WHOM YOU ACQUIRED THE PRODUCTS: IN WHICH CASE THE REMAINDER OF THIS DOCUMENT, EXCEPT FOR THE ARRIS TOUCHSTONE PRODUCTS SAFETY INFORMATION, DOES NOT APPLY TO YOU. 11. Software Warranty ARRIS warrants to the original purchaser that for ninety (90) days from the ship date of the original ARRIS branded Software (the Software Warranty Period), the Software will perform in substantial conformance with the technical specifications for such Software set forth in the Documentation. Your sole and exclusive remedy, and ARRIS sole and exclusive liability under this Section 11 (Software Warranty) shall be, at ARRIS option: (i) to use commercially reasonable efforts to correct any reproducible errors that You identify in writing during the Software Warranty Period which renders the Software non-conforming, (ii) to replace the Software with functionally equivalent software or (iii) to accept Your return of the Software, if applicable. ARRIS does not warrant that the Software will work in combination with any hardware or application software products provided by third parties not supplied or approved by ARRIS, that the operation of the Software will be uninterrupted or error free, or that all defects in the Software can be corrected. ARRIS shall not have any obligation or liability with respect to this Section 11 for any errors or any defects in the Software upon expiration of the Software Warranty Period. 12. Hardware Warranty 12.1 ARRIS warrants to the original Purchaser of the hardware that under normal use and service, for twelve (12) months from the ship date (the Hardware Warranty Period) of the Hardware, it will be free from defects in material and workmanship. Your sole and exclusive remedy and ARRIS sole and exclusive liability under this Section 12 shall be, at ARRIS option: (i) to use commercially reasonable efforts to correct any reproducible Hardware errors that You identify in writing during the Hardware Warranty Period which renders the Hardware non-conforming, (ii) to replace the Hardware or (iii) accept return of the Hardware from Purchaser. ARRIS shall not be responsible for any of Your or third party software, firmware, information or memory data contained in, stored on, or integrated with any Hardware Products returned to ARRIS pursuant to any Warranty provided under this Agreement. 12.2 ARRIS does not warrant (1) physical damage to the surface of the products, including cracks or scratches on the casing; (2) damage caused by misuse, neglect, improper installation or testing, unauthorized attempts to open, repair or modify the products, or any other cause beyond the range of the intended use; (3) damage caused by accident, fire, power changes, other hazards, or acts of God. 12.3 Battery Pack. If Your product has a battery pack, ARRIS warrants that the battery pack will be free from defects in workmanship and materials, under normal use, for twelve (12) months from its ship date. 13. Warranty Claims To make a return under the Warranty above, You must contact the ARRIS Repair Services center within the applicable warranty period, in writing, by sending an E-mail to [email protected] to obtain an ARRIS Return Material Authorization number (RMA). The authorized RMA number You receive from ARRIS must be marked on the outside package and sent prepaid and packaged appropriately for safe shipment. ARRIS will use commercially reasonable efforts to ship any repaired or replaced Product to You, at ARRIS expense, not later than thirty (30) days after ARRIS receives the defective Product. ARRIS warrants the repaired or replaced Hardware or Software for the longer of the remainder of the unexpired applicable Warranty Period or 90 days. 2002-2008 ARRIS Group, Inc. All rights reserved. v

Notwithstanding the above, if any return is due to errors or defects for which ARRIS is not responsible or not otherwise covered by the Warranty, You shall be liable for and reimburse ARRIS for shipping and related expenses. 14. Disclaimer of Warranty EXCEPT AS AGREED TO IN A SEPARATE WRITING BETWEEN THE PARTIES, THESE WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES WITH RESPECT TO THE SOFTWARE AND/OR SYSTEM DELIVERED TO YOU HEREUNDER, WHETHER STATUTORY, BY OPERATION OF LAW, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, TITLE AND ANY WARRANTIES ARISING OUT OF USAGE OR TRADE. THIS WARRANTY IS APPLICABLE SOLELY TO YOU AND NOT TO ANY SUCCESSOR IN INTEREST OR ANY OTHER THIRD PARTY. NO WAIVER, ALTERATION, OR MODIFICATION OF THIS WARRANTY SHALL BE BINDING AGAINST ARRIS UNLESS IN WRIT-ING AS A SEPARATE AMENDMENT HERETO AND SIGNED BY AN ARRIS AUTHORIZED EXECUTIVE. 15. Warranty Limitations ARRIS shall be relieved of all obligations and liability under the Warranty provisions set forth herein, if: a The Hardware or Software is operated with, or the error or defect is due to, any accessory, equipment, software or part not approved or sold by ARRIS; or b c d The Hardware or Software was not installed, operated and maintained in accordance with ARRIS instructions and Documentation; or The Hardware or Software has been repaired, altered or modified by someone other than ARRIS; or You do not notify ARRIS in writing of the error or defect within the applicable Warranty Period with sufficient information for ARRIS to identify and reproduce such error or defect, or fail to return the defective Hardware or Software according to the terms of this Agreement; or ARRIS demonstrates that the alleged error or defect in the Software or Hardware does not exist or was caused by Your or any third partys misuse, neglect, improper installation or testing, or negligent repair or any other cause beyond the range of the intended use, or by accident, fire, lightening or other hazard or act of God.

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16. Miscellaneous 16.1 If any term, condition, or provision in this Agreement is found to be invalid, unlawful or unenforceable to any extent, the remaining terms, conditions and provisions will continue to be valid and enforceable to the fullest extent permitted by law. 16.2 You may not assign or transfer this Agreement nor any rights hereunder, in whole or in part, whether voluntary or by operation of law without ARRIS prior written consent. Subject to the foregoing, this Agreement will be binding upon and will inure to the benefit of the parties and their respective successors and assigns. 16.3 This Agreement (including any addenda hereto signed by both parties) represents the entire agreement of the parties with respect to the subject matter of this Agreement and supersedes all previous communications, representations, understandings and agreements, either oral or written, between the parties with respect to said subject matter.

2002-2008 ARRIS Group, Inc. All rights reserved. vi

16.4 This Agreement may not be amended, except in writing, signed by both parties. No terms, provisions or conditions of any purchase order, acknowledgment or other business form that You may use in connection with the acquisition or licensing of the Software will have any effect on the rights, duties or obligations of the parties under, or otherwise modify, this Agreement, regardless of any failure of ARRIS to object to such terms, provisions or conditions. 16.5 The laws of the State of Georgia, USA shall govern and construe this Agreement. Any suit brought in connection with this Agreement shall be subject to the exclusive jurisdiction of the State Court of Georgia or the Federal Courts for the Northern District of Georgia and You hereby agree and submit to the personal jurisdiction and venue thereof. 17. Safety Information for ARRIS Touchstone Products ARRIS telephony modems and cable modems comply with the applicable requirements for performance, construction, labeling, and information when used as outlined in this Section 17: 17.1 Caution: Only a professional installer may connect the telephony modem to the homes existing telephone wiring. Physical connections to the previous telephone provider must be removed and the wiring must be checked; there must not be any voltages. Cancellation of telephone service is not sufficient to ensure there is no power to the telephony modem. Failure to do so may result in loss of service and/or permanent damage to the telephony modem. 17.2 Do not use the product near water (e.g., wet basement, bathtub, sink or near a swimming pool), to avoid risk of electrocution. 17.3 Avoid using and/or connecting the equipment during an electrical storm, to avoid risk of electrocution. 17.4 Do not locate the product within 6 feet (2 m) of a flame or ignition source, to avoid damage or injury from battery explosion, or heat damage. 17.5 Use only the power supply and/or power cord included with the Product. Install the Product near and easily accessible to the power outlet. Ground the RF drop cables shield at the building/residence either close to the point of entrance or at the point of attachment. Grounding as close as practical to the building/residence AC ground is required to minimize grounding connector length and thereby limit the potential voltage differences between the cable TV coaxial cable and other grounding system. Refer to the individual countrys National Electric Code for further details. 17.6 In areas of high AC power surge events or poor AC power grounding situations and areas prone to lightning strikes additional AC power surge protection may be required on the AC, RF, Ethernet, USB and phone lines. 17.7 If connecting the telephony modem or cable modem to a local computer through the Ethernet or USB cable the computer must be properly grounded to the building/residence AC ground network. All plug-in cards within the computer must be properly installed and grounded to the computer frame per the manufacturers specifications.

2002-2008 ARRIS Group, Inc. All rights reserved. vii

2002-2008 ARRIS Group, Inc. All rights reserved. viii

Features and Fixes for Release 5.1 (5.2)

NOTE The Release 5.2 user documentation consists of the Release 5.1 User Manual, plus seven additional features which are described in chapters 31-37, and a quick-start or bring-up procedure, which is found in chapter 38. The Features and Fixes listed in this section and the CLI changes listed in the next section were all added as part of Release 5.1. (5.2) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) All fan trays shipped by factory as of this revision date are high-speed. Fan speed is no longer user controlled. ARP Abuse Counts: feature description. Automatic Gain Control: downstream parameter. Automatic Gain Control: feature description. Basic DSG Configuration using pre-5.1 commands Better coverage of IGMP host and version 3 commands. BGP runs only on default VFG, but is also supported on subinterfaces that are not on the default VRF. BGP runs only on default VFG, but is also supported on subinterfaces that are not on the default VRF. Changed command from "config ip filter group .. src-addr.. dest-addr ..." to "config cable filter group ... src-ip ... dest-ip ..." . DHCP Lease Query Feature Configurability DOCSIS Ping feature description. DSG Configuration Simplification Example of simple Route Map added. Explanation given for usernames and passwords containing spaces was

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confusing. Added better examples. (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) FlexPath DOCSIS 3.0-based Channel Bonding Enhancements Level 1 and 2 thresholds are not used in Release 5.x. More inclusive listing of OSPF-related commands. PD 103738 Explanation of when privacy password is required for configuring snmp-server groups. PD 103738 Explanation of when privacy password is required for configuring snmp-server groups. PD 82006 Source IP Configuration for Remote Query (see also related commands) PD 86833 Enhanced Query Modem Counts PD 93129: replaced obsolete command configure ip [no] telnet with configure [no] telnet-server. PD 94594: Revised and augmented description of CAC handling of preemption by emergency calls and how CAC handles PCMM flows. PD 98899: QAM 128 and TCM not supported in Release 5.1. PD 98899: QAM 128 and TCM not supported in Release 5.1. PD 98899: QAM 128 and TCM not supported in Release 5.1. PD 99164 Previous documentation releases understated time required for Hitless Software Upgrade. PD105178: Added step for setting source interface. Power-adjust is disabled when Automatic Gain Control is enabled. Text added stating that the following ranges are filtered (denied) by default from IGMP joins: 224.0.0.0/8 and 239.0.0.0/8. Updated CLI commands and revised descriptions of supported routing protocols to match 5.1 functionality. Updated IGMP-related procedures. Updated sample output for show proto-throttle-rate command. Upstream- and downstream-check intervals are faster and are expressed in seconds, not minutes as in previous loads.

8-2 26-21 19-6 12-27 29-958 29-971 29-173 29-1115 15-20 16-29 10-7 20-6 2-11 22-10 35-5 29-309 12-42 12-1 12-40 13-18 27-4

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NOTE The Release 5.2 user documentation consists of the Release 5.1 User Manual, plus seven additional features which are described in chapters 31-37, and a quick-start or bring-up procedure, which is found in chapter 38. The Features and Fixes listed in the previous section and the CLI changes listed in this section were all added as part of Release 5.1. (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.2) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) (5.1) Automatic Gain Control: included in sample output for config inter cable slot/mac cable downstream show command. clear cable modem fpcm-id {reset | delete} Config snmp server user command, corrected typo in parameter to read md5. configure arp timeout -- corrected units to read seconds (not centiseconds). configure cable modem remote-query source-interface cable configure cable modem remote-query source-interface fastEthernet configure cable modem remote-query source-interface gigabitEthernet configure cable modem remote-query source-interface loopback configure cable source-verify leasequery message-type configure cable source-verify leasequery version configure fan speed-control shutdown -- this command has been removed. All fan trays shipped from factory as of this revision date are high speed. Fan speed cannot be lowered. configure interface cable / cable downstream automatic-gain-control [no] configure interface cable /[] ip ospf auto-delete-neighbor configure interface fastethernet /[] ip ospf auto-delete-neighbor configure interface gigabitethernet /[] ip ospf auto-delete-neighbor configure snmp-server engineid remote Enhanced query modem counts on a per-upstream basis NO command description for relay agent circuit ID updated with correct wording. ping docsis [count] [verbose] show cable load-balance failed-list show cable modem summary brief show cable proto-throttle [detail] [arp-replies-throttled] [arp-requests-throttled ] show operation events override [slot] show terminal

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(5.1) (5.1)

terminal width width

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Features and Fixes for Release 5.1 (5.2) CLI Changes for 5.1 (5.2) Table of Contents List of Figures List of Procedures 1 About This ManualIntended Audience Prerequisite Skill and Knowledge Purpose Conventions Used in this Document Admonishments Textual Conventions How to Contact Us 1-1 1-2 1-2 1-2 1-2 1-3 1-4

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C4 CMTS FeaturesDOCSIS 2.0 Compliance Fault Detection and Recovery Interfaces and Protocols Security Features IP Filtering Options 2-1 2-2 2-3 2-3 2-3

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C4 CMTS Feature Descriptions by Software Release Feature Descriptions Release 5.0 Features Release 5.1.x Features

2-4 2-8 2-8 2-11

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C4 CMTS SpecificationsNetwork Diagram C4 CMTS Specifications RF Electrical Specifications Scalability VoIP Call Capacities 3-3 3-4 3-6 3-7 3-9

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C4 CMTS Power RequirementsComponents of the Power System Power Protection Description 4-1 4-3

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Installation RequirementsSafety Precautions Lifting Safety Electrical Equipment Guidelines Electrostatic Discharge (ESD) Preventing Electrostatic Discharge Damage Installation Checklist Tools Required Items Not Supplied Unpacking the C4 CMTS Module Protection Installation Considerations Rack Mounting Chassis Placement Power Requirements Cooling Requirements 5-2 5-2 5-3 5-3 5-3 5-4 5-4 5-5 5-6 5-7 5-7 5-7 5-7 5-8 5-8

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Installing/Replacing Modules and Initial System ConfigurationIntroduction Main Hardware Components Module Types and Chassis SlotsFront View Chassis Rear View Recommended Order for Installing Chassis Components Recommended Chassis Unloading Order Grounding the Chassis Rack Mounting the C4 CMTS Power Conditioning Module (PCM) and Cabling Power Protection Description PCM replacement Fan Modules and Cooling Air Filter Installing/Replacing Modules in the C4 CMTS System Control Module (SCM) SCM Replacement Fabric Control Module (FCM) Overview FCM Replacement Fast Ethernet Network Access Module (NAM) Overview Gigabit Ethernet Network Access Module Overview Cable Access Module (1Dx8U CAM) Overview Cable Access Module (2Dx12U CAM) Overview Initial System Configuration Overview How to Set the SCM IP Address Using a Terminal Emulator 6-2 6-2 6-3 6-4 6-6 6-7 6-7 6-8 6-9 6-9 6-12 6-13 6-17 6-17 6-21 6-27 6-32 6-33 6-34 6-39 6-40 6-42 6-43 6-50 6-51 6-55 6-56 6-61 6-61 6-62

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Clock Synchronization Protocol Host Names, User IDs, and Password RecoveryHow to Administer the Host Name and User IDs How to Add and Delete Users Password Recovery 8-1 8-2 8-5

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NAM ConfigurationFast Ethernet Network Access Module (NAM) Configuration Gigabit Ethernet Network Access Module (GigE NAM) Configuration NAM-Side IP Interface Bundling 9-2 9-4 9-7

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Basic CAM Configuration1Dx8U CAM 2Dx12U CAM Rules and Restrictions for 2Dx12U CAM Configuration Basic Command Set for Bringing Up a 2Dx12U Migration from 1Dx8U CAMs to 2Dx12U CAMs Measuring SNR in the 2Dx12U CAM Clone Group Configuration Clone Group Configuration Recommendations Clone Group Operation Details Sample Clone Group Configurations Inter-MAC-Domain Clone Groups Modulation Profiles Adjusting Channel Settings in Response to Increased CM Scaling FlexCAM Hitless CAM Sparing Overview Configure Sparing Groups Example Interface Bundling 10-1 10-4 10-4 10-8 10-14 10-23 10-26 10-28 10-29 10-30 10-30 10-32 10-40 10-41 10-41 10-43 10-47

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Control Complex Redundancy Configuring Router FunctionalityInterface Configuration Common Interface Configuring Commands Monitoring Interfaces Subinterfaces (Multiple VRIs per VRF) 802.1Q VLAN Tagging (Q-tags) CLI Commands Routing Information Protocol, version 2 (RIP2) Open Shortest Path First (OSPF) OSPF Graceful Restart Loopback Interfaces for Routing Protocols Dynamic Route Redundancy Configuring IP Routes Multicast Operations in the C4 CMTS IGMP Implementation Integrated Intermediate System to Intermediate System (IS-IS) CLNP Addressing/NSAP Address Format IS-IS Network Topology, Unique Level 1 Areas IS-IS Network Topology Multi-homing Packet Flow between IS-IS Systems IS-IS Common Header IS-IS LAN Hello Packets (PDU Types 15, 16) IS-IS LAN Hello Packet TLVs IS-IS Link State Packet (PDU Types 18, 20) IS-IS LSP TLVs IS-IS Sequence Number Packets IS-IS SNP TLVs Designated Intermediate System (DIS) and Reliable Flooding of LSPs Border Gateway Protocol, version 4 (BGP-4) BGP Confederations and Route Reflection Packet Flow through the System 12-2 12-2 12-3 12-5 12-9 12-11 12-14 12-22 12-25 12-31 12-36 12-37 12-38 12-40 12-45 12-46 12-47 12-48 12-48 12-49 12-50 12-51 12-51 12-53 12-53 12-54 12-55 12-61 12-62 12-64

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BGP Attributes General Notes on BGP Function in the C4 CMTS Provisioning (CLI commands, MIBs, etc.) Sample Configuration Command Scripts for BGP Route Redistribution and Administrative Costing CLI Commands

12-66 12-67 12-69 12-75 12-78 12-80

13

IP Packet Filtering, Throttling, and CAROverview of IP Packet Filtering Subscriber Filters Setting Default Filter Groups Debug IP Packet Capture Packet Throttling Cable-side Throttling ARP Throttling Network-side ACLs ARP Abuse Counts Committed Access Rate NAM-Side ACLs Used for Filtering Traffic Global Rate Smoothing for TCP Traffic Feature Token Bucket 3.0: Traffic Shaping on the 2Dx12U CAM 13-1 13-4 13-10 13-15 13-17 13-19 13-21 13-22 13-22 13-25 13-29 13-31 13-32

14 15

Service Class Names Authentication, Authorization, and Accounting (AAA)AAA Feature Servers and Server Groups Secure Shell Protocol (SSH2) In-Band Management with ACLs Routing to a Null Interface Source Verification of Cable-side IP Addresses CPE Host Authorization Upstream Load Balancing (ULB) 15-1 15-5 15-14 15-23 15-27 15-27 15-29 15-32

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DSx DQoS VoIP on the C4 CMTS C4 CMTS Advanced CM Configuration File Verification Cable Modem MAC Deny List

15-35 15-36 15-38

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PacketCable ServicesPacketCable 1.x Overview PacketCable Multimedia Overview Configuration Procedures IKE and IPSec Configuration PacketCable Settings PC1.x Electronic Surveillance Electronic Surveillance Configuration Electronic Surveillance Logging Messages Running in a non-PacketCable Compliant Voice Environment Working with non-ARRIS MTAs in a non-PacketCable Compliant Voice System Working with ARRIS MTAs in a non-PC1.x Compliant System Converged Services 16-1 16-5 16-9 16-10 16-20 16-34 16-36 16-36 16-38 16-38 16-39 16-41

17

Baseline Privacy Interface (BPI)Baseline Privacy Overview Baseline Privacy Operational Overview Baseline Privacy Setup Initial CMTS Base Table Setup BPI Initialized State Configuration Settings. Encrypted Multicast Setup Digital Certificates (BPI+ Only) Provisioning BPI X.509 Certificates Using Import/Export Commands Provisioning BPI X.509 Certificates Using CLI Commands Baseline Privacy Debugging Explanation of BPI Trap Codes CLI Commands for Baseline Privacy Configure Cable Command Show Cable Command 17-1 17-2 17-4 17-4 17-9 17-10 17-14 17-15 17-17 17-20 17-24 17-28 17-28 17-29

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Configure Interface Cable Command Show Interface Cable Command

17-30 17-32

18

DOCSIS Set-top Gateway (DSG) ConfigurationOverview and Definitions DSG Configuration Overview Initial Configuration Configuring Multicast Enabling Upstream Filters DSG Configuration Configuring Access List, Filters and Rate Limits Configuring IP Forwarding for Basic Mode DSG Configuring IP Forwarding For Advanced Mode DS Cable Interface DSG Tunnels DSG Classifier DSG Configuration Scenarios Initial Setup for DSG DSG Configuration Only Multicast Destination IP to RFC1112 DSG Tunnel MAC Multicast Destination IP to non-RFC1112 DSG Tunnel MAC Unicast Destination IP 18-1 18-4 18-4 18-5 18-8 18-8 18-8 18-10 18-12 18-13 18-16 18-20 18-22 18-22 18-23 18-24 18-26 18-29

19 20

Downstream Cable Parameters Upstream Modulation Parameters and ProfilesExplanation of Upstream Parameters Differences Between the 1Dx8U and 2Dx12U Default Modulation Profiles Modulation Profiles: Default and User-defined Optimizing a Modulation Profile Noise and SNR versus Modulation Rate 20-1 20-10 20-11 20-13 20-14

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21 22

SNMP Configuration with CLI Flash Disk DescriptionOverview Virtual System Controller File System Administration File Transfers Hitless Reload/Upgrade Feature 22-1 22-4 22-5 22-7 22-9

23

Logging and the C4 CMTSEvent Messages How Event Messages Are Routed Event Management Subsystems Event Message Throttling Show Logging Commands Configuring Event Throttling Configuring Event Routing Generating Events and Traps SNMP Trap Examples Routing Events to Local Volatile and Non-Volatile Logs Displaying Events on the System Console Routing Events to the Monitor Routing Events to the History Log Logging OSPF Event Messages 23-1 23-2 23-3 23-4 23-5 23-9 23-11 23-15 23-16 23-18 23-19 23-20 23-21 23-22

24

DiagnosticsOverview Diagnostic User Interfaces DOCSIS Ping 24-1 24-2 24-15

25

Integrated Upstream AgilityOverview Examples of Upstream Agility State Machines 25-1 25-4

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Example 1 Example 2 Example 3 Example 4 Sample Configuration CLI Commands Assigning & Unassigning State Machines to Upstream Channels Show Commands C4 CMTS State Machine Crosschecks

25-5 25-10 25-12 25-13 25-15 25-16 25-23 25-25 25-30

26

FlexPath Channel BondingTheory of Operation Configuration Examples of Wideband Cable Group Configuration FlexPath DOCSIS 3.0-based Channel Bonding FlexPath-only Upstream Channels 26-2 26-6 26-15 26-21 26-23

27

Dynamic Load BalancingIntroduction Dynamic Load Balance Methods Dynamic Load Balancing Threshold CLI Commands for Configuring and Displaying Load Balancing Configuration Examples Interaction with Older Cable Modems 27-1 27-2 27-3 27-7 27-12 27-15

28

CLI OverviewAccess Levels and Modes CLI Command Modes CLI Syntax Conventions Designating MAC addresses and IP addresses Keyboard Shortcuts CLI Command Features CLI Help Feature 28-1 28-2 28-5 28-6 28-6 28-7 28-8

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Show Cable Modem Column FeatureCLI Filtering How to Use CLI Filtering

28-15 28-17 28-18

29 30

CLI Command Descriptions Standard and Cadant Enterprise MIBsCMTS SNMP MIB Variable Descriptions Enterprise MIBs 30-2 30-3

31

Border Gateway Protocol, (BGP), Version 4Overview BGP Confederations and Route Reflection Packet Flow through the System BGP Attributes General Notes on BGP Function in the C4 CMTS Provisioning (CLI commands, MIBs, etc.) Sample Configuration Command Scripts for BGP 31-1 31-3 31-5 31-7 31-8 31-10 31-15

32

CPE Device ClassesOverview Abbreviations DHCP Helper Address Provisioning Assigning Secondary Interfaces Based on Device Class Filter Groups Based on Device Class CLI Changes and Additions 32-1 32-2 32-5 32-6 32-7 32-8

33

Global User Profile33-1 Overview 33-1

34

Internet Protocol Detail Record (IPDR)Overview Operational Issues 34-1 34-2

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Abbreviations IPDR Functionality CLI Commands Data Management and Maintenance

34-2 34-4 34-6 34-9

35

Legal InterceptOverview Operational Issues Abbreviations Chassis Configuration CLI Commands Data Management and Maintenance 35-1 35-3 35-3 35-3 35-4 35-6

36

Per-Subscriber ThroughputOverview 36-1

37

Support for Five VRFs for OSPFOverview Abbreviations Overview of the Sample Procedure 37-1 37-2 37-2

38

Release 5.2 Bring-up ProceduresIntroduction Main Hardware Components Module Types and Chassis SlotsFront View Chassis Rear View Recommended Order for Installing Chassis Components Making the CMTS Operational Configuring the CMTS Managing the CMTS 38-1 38-2 38-2 38-3 38-4 38-6 38-9 38-15

List of CLI Commands Comments & Feedback Form

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3

C4 CMTS SpecificationsFigure 3-1: Figure 3-2: Figure 3-3: The C4 CMTS (front view) Typical Cable Data Network Architecture WEEE Symbol 3-2 3-3 3-6

4

C4 CMTS Power RequirementsFigure 4-1: Figure 4-2: Figure 4-3: Figure 4-4: Figure 4-5: C4 CMTS Front Access Panels LED and Power Bus Switches C4 CMTS Power Feeds (chassis rear) Second Level - Internal Branch Fusing Power Control Button 4-2 4-3 4-4 4-5 4-6

5

Installation RequirementsFigure 5-1: Internal Air Flow (side view) 5-9

6

Installing/Replacing Modules and Initial System ConfigurationFigure 6-1: Figure 6-2: Figure 6-3: Figure 6-4: Figure 6-5: Figure 6-6: Front View of C4 CMTS C4 CMTS Chassis (rear view) Example of Old and New Front Filler Panels Location of Grounding Terminals Installing the Power Control Module (PCM) Cabling the PCM 6-3 6-5 6-6 6-8 6-10 6-11

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Figure 6-7: Figure 6-8: Figure 6-9:

Example of Normal Speed Fan Module Example of High Speed Fan Module Installing the Fan Module

6-13 6-14 6-15 6-16 6-18 6-19 6-21 6-26 6-27 6-32 6-39 6-42 6-45 6-46 6-50 6-55 6-62 6-66

Figure 6-10: Air Flow Through the Chassis Figure 6-11: Installing the System Control Module Figure 6-12: Release Locking Latches in Order to Remove Module Figure 6-13: System Control Module (SCM) and PIC Figure 6-14: View of Pin-out of Rollover Cable Figure 6-15: Connecting the Console Port to a PC Figure 6-16: Fabric Control Module (FCM) and Filler Panel Figure 6-17: FastE NAM and PIC Figure 6-18: GigabitEthernet Network Access Module (GigE NAM) and PIC Figure 6-19: Gigabit Interface Converters (GBICs) Figure 6-20: Installing the GBIC Figure 6-21: 1Dx8U Cable Access Module (CAM) and PICs Figure 6-22: 2D12U Cable Access Module (CAM) and PIC Figure 6-23: Opening a Terminal Session on the C4 CMTS Figure 6-24: Sample Bootloader Dialog

9

NAM ConfigurationFigure 9-1: Block Diagram of NAM-Side IP Interface Bundling 9-7

10

Basic CAM ConfigurationFigure 10-1: One Way to Migrate Two 1Dx6 CAMs onto One 2Dx12U (example) 10-15

Figure 10-2: Migration Example: from 12 Upstreams on Two 1D/6U CAMs to One 2Dx12U 10-16 Figure 10-3: Two Examples of Slot Configuration after Migrating to 2Dx12U CAMs Figure 10-4: Network Example Each CM Sees Multiple Downstreams Figure 10-5: Example of CAM Sparing Groups 10-17 10-31 10-43

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12

Configuring Router FunctionalityFigure 12-1: Difference between Standard IP and Q-tag Encapsulation Figure 12-2: IEEE 802.1Q/p Tag Format Figure 12-3: Example of Packet Flow Using Loopback Interface Figure 12-4: Simplified NSAP format Figure 12-5: IS-IS Level 1 and Level 2 Routing Figure 12-6: Common IS-IS Header Figure 12-7: IS-IS LAN Hello Figure 12-8: IS-IS LSP Figure 12-9: IS-IS CSNP Figure 12-10: Figure 1: I-BGP with Confederations to Reduce Full Mesh Peering Figure 12-11: Figure 2: BGP Network Topology with Route Reflections and an OSPF overlay 12-10 12-10 12-34 12-46 12-47 12-50 12-50 12-52 12-54 12-63 12-64

15

Authentication, Authorization, and Accounting (AAA)Figure 15-1: AAA Security Model 15-3

16

PacketCable ServicesFigure 16-1: PacketCable Network Reference Architecture Figure 16-2: Foundations of PCMM Architecture Figure 16-3: Network Diagram of PCMM Implementation Figure 16-4: PacketCable 1.x Classification in a Combined Voice and Data Environment 16-3 16-6 16-8 16-43

17

Baseline Privacy Interface (BPI)Figure 17-1: Example of Baseline Privacy Base Table 17-5

18

DOCSIS Set-top Gateway (DSG) ConfigurationFigure 18-1: Logical devices in a DSG system Figure 18-2: Block Diagram of an Advanced DSG Configuration 18-2 18-13

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20

Upstream Modulation Parameters and ProfilesFigure 20-1: Relation of FEC Codewords to Data Packet Figure 20-2: Maximum ATDMA Data Rate vs. SNR 20-16 20-18

21

SNMP Configuration with CLIFigure 21-1: Relationship of SNMP Tables to User-defined Elements 21-3

22

Flash Disk DescriptionFigure 22-1: Flash Disk Partition Structure 22-2

23

Logging and the C4 CMTSFigure 23-1: Event Management Subsystems on the C4 CMTS Figure 23-2: Show Logging Output Example Figure 23-3: Show Logging Throttle Output Example Figure 23-4: Show Logging History Output Example Figure 23-5: Show Logging History Last 10 Output Example Figure 23-6: Help Configure Logging Trap Output Example Figure 23-7: Show Logging Local Output Example 23-3 23-7 23-8 23-8 23-9 23-16 23-19

24

DiagnosticsFigure 24-1: C4 CMTS Diagnostic Software Figure 24-2: CLI Output for Diagnostics Figure 24-3: Show Logging History Output Example (partial) Figure 24-4: Example of System Output for a Module that Failed Diagnostics 24-3 24-12 24-13 24-14

25

Integrated Upstream AgilityFigure 25-1: State Diagram of a State Machine (Example) Figure 25-2: State Diagram of a State Machine for a Dramatic Improvement Trigger (Example) Figure 25-3: State Diagram Using Degradation and Periodic Triggers (Example) Figure 25-4: State Diagram Using Simple Time-of-Day (TOD) Triggers (Example) 25-6 25-11 25-12 25-14

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26

FlexPath Channel BondingFigure 26-1: Block Diagram of FlexPath Architecture Figure 26-2: Subscriber Data Transport Figure 26-3: Example of Channel Pairings Figure 26-4: FlexPath 2 x 2 DS/US Configuration Figure 26-5: FlexPath 4 x 1 DS/US Configuration 26-1 26-3 26-6 26-22 26-23

31

Border Gateway Protocol, (BGP), Version 4Figure 31-1: I-BGP with Confederations to Reduce Full Mesh Peering Figure 31-2: BGP Network Topology with Route Reflections and OSPF Overlay 31-3 31-4

37 38

Support for Five VRFs for OSPF Release 5.2 Bring-up ProceduresFigure 38-1: Front View of C4 CMTS Figure 38-2: C4 CMTS Chassis (rear view) Figure 38-3: Network Diagram 38-3 38-4 38-6

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6

Installing/Replacing Modules and Initial System ConfigurationProcedure 6-1 Procedure 6-2 Procedure 6-3 Procedure 6-4 Procedure 6-5 Procedure 6-6 Procedure 6-7 Procedure 6-8 Procedure 6-9 How to Rack Mount the C4 CMTS How to Install the Power Conditioning Modules (PCMs) How to Cable the PCM Follow the steps below to replace a Power Conditioning Module (PCM). How to Install the Fan Modules How to Install the SCM How to Install the SCM Physical Interface Card (PIC) How to Cable the SCM How to Replace an SCM 6-8 6-10 6-11 6-12 6-15 6-24 6-24 6-26 6-27 6-34 6-41 6-43 6-43 6-47 6-47 6-53 6-53 6-59 6-62 6-64

Procedure 6-10 How to Replace an FCM for a Duplex System Procedure 6-11 How to Install the FastE NAM Procedure 6-12 How to Install the GigE NAM Procedure 6-13 How to Install the GigE NAM Physical Interface Card (PIC) Procedure 6-14 How to Install the GBICs Procedure 6-15 How to Remove a GBIC Procedure 6-16 How to Install the CAM Procedure 6-17 How to Install the CAM Physical Interface Card (PIC) Procedure 6-18 How to Replace the Chassis Procedure 6-19 How to Open the Terminal Emulator Session Procedure 6-20 Configuring Out-of-Band Management

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Procedure 6-21 How to Modify Boot Parameters

6-64

7

Clock Synchronization ProtocolProcedure 7-1 Procedure 7-2 How to Configure a Time of Day (TOD) Clock Protocol How to Choose Network Time Protocol (NTP) for C4 CMTS 7-1 7-2

8

Host Names, User IDs, and Password RecoveryProcedure 8-1 Procedure 8-2 Procedure 8-3 Procedure 8-4 How to Configure a Host Name and Logging Host IP Address How to Configure Privilege Levels and Authentication Creating a User Profile How to Enable Password Recovery Using Application Dialog 8-1 8-3 8-4 8-5

9

NAM ConfigurationProcedure 9-1 Procedure 9-2 Procedure 9-3 Procedure 9-4 How to Configure a Network Access Module How to Take a NAM Out of Service and Delete Its Slot How to Configure a Gigabit Ethernet Network Access Module How to Take a GigE NAM Out of Service and Delete Its Slot 9-3 9-4 9-5 9-6

10

Basic CAM ConfigurationProcedure 10-1 How to Create and Enable a 1Dx8U CAM Procedure 10-2 Example of Growing and Enabling a 2Dx12U CAM with Logical Channels Procedure 10-3 Migrating from a 1Dx8U Chassis to a 2Dx12U Chassis Procedure 10-4 How to Align IM Opportunities for Clone Groups Procedure 10-5 How to Create and Apply a Modulation Profile to an US Port Procedure 10-6 How to Configure an Upstream (US) Channel Procedure 10-7 How to Activate a CAM Procedure 10-8 How to Take a CAM Out of Service and Delete Its Slot Procedure 10-9 Configuring the Two Sparing Groups Shown in the Example Procedure 10-10How to Fail Back Manually Procedure 10-11How to Delete a CAM Sparing Group 10-2 10-10 10-18 10-28 10-32 10-34 10-39 10-39 10-44 10-45 10-46

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Procedure 10-12How to Create Interface Bundles Procedure 10-13How to Remove Interface Bundles

10-47 10-48

11

Control Complex RedundancyProcedure 11-1 How to Add a Control Complex (Change from Simplex to Duplex) Procedure 11-2 How to Change a Control Complex from Duplex to Simplex 11-3 11-4

12

Configuring Router FunctionalityProcedure 12-1 How to Monitor Interfaces Procedure 12-2 How to Enable Single Key Authentication Procedure 12-3 How to Enable Multiple Key Authentication (i.e., Key Chains) Procedure 12-4 How to Enable OSPF Procedure 12-5 How to Disable OSPF for an Interface Procedure 12-6 How to Disable OSPF (Globally) on the C4 CMTS Procedure 12-7 How to Add/Delete/View a Static IP Route to the C4 CMTS Procedure 12-8 How to Enable IGMP Router for a Cable Interface Procedure 12-9 IGMP Host Commands on a Cable Interface 12-3 12-19 12-19 12-23 12-24 12-25 12-37 12-40 12-41

13

IP Packet Filtering, Throttling, and CARProcedure 13-1 How to Add Filters to the CMTS 13-6

15

Authentication, Authorization, and Accounting (AAA)Procedure 15-1 Setting up SSH on the C4 CMTS Procedure 15-2 PuTTY, SSH, Public Key Authentication 15-17 15-17

21

SNMP Configuration with CLIProcedure 21-1 Basic Configuration for an SNMP v1/2 Community 21-1

23

Logging and the C4 CMTSProcedure 23-1 How to Route Events to the Console Procedure 23-2 How to Route Events to the Monitor 23-19 23-20

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Procedure 23-3 How to Configure the History Log

23-21

24

DiagnosticsProcedure 24-1 How to Restore Modules into Service 24-4

25

Integrated Upstream AgilityProcedure 25-1 Configuring a Sample Upstream Agility Application Procedure 25-2 Modifying a State Machine (an example) 25-15 25-29

26

FlexPath Channel BondingProcedure 26-1 Sample Configuration of a Single Wideband Cable Group Procedure 26-2 Sample Multiple Configuration Procedure 26-16 26-18

27

Dynamic Load BalancingProcedure 27-1 Load balancing upstream channels within a mac domain Procedure 27-2 Load balancing upstream channels across mac domains Procedure 27-3 Modifying the default load balance group parameters Procedure 27-4 Modifying parameters for more active load balancing 27-12 27-13 27-14 27-15

33

Global User ProfileProcedure 33-1 Creating a Global User Profile Procedure 33-2 Creating a User Profile 33-1 33-2

35

Legal InterceptProcedure 35-1 Sample Configuration for Secure Access and Tap 35-4

37

Support for Five VRFs for OSPFProcedure 37-1 Example of Setting Up Five VRFs 37-2

38

Release 5.2 Bring-up ProceduresProcedure 38-1 How to Install Chassis Components 38-4

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Procedure 38-2 How to Configure the SCM Procedure 38-3 How to Configure the FCM Procedure 38-4 How to Configure the GNAM Procedure 38-5 How to Configure the FastEthernet NAM (NAM) Procedure 38-6 How to Configure 1Dx8U CAMs Procedure 38-7 How to Configure 2Dx12U CAMs Procedure 38-8 How to Configure the SNMP Procedure 38-9 How to Provision In-Band Management Procedure 38-10How to Provision Out-of-Band Management Procedure 38-11How to Configure the SSH protocol

38-9 38-9 38-10 38-11 38-11 38-12 38-14 38-15 38-16 38-17

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1

About This Manual

TopicsIntended Audience Prerequisite Skill and Knowledge Purpose Conventions Used in this Document How to Contact Us

Page1 2 2 2 4

In response to emerging IP-based data and voice services, ARRIS brings to market a next-generation, carrier-class Cable Data Network Solution the C4 Cable Modem Termination System (CMTS). As of January 2006 there are more than 1000 C4 CMTSs in the field. They support well over 5 million subscribers on four continents. The C4 CMTS has been designed to meet the needs of the Multiple System Operator (MSO) in terms of system density, wire-speed performance, and reliability. The C4 CMTS enables MSOs to bundle high-speed data, voice, full-motion video, and other multimedia content to residential and business customers.

Intended AudienceThis document is intended for MSO technical support personnel who are responsible for integrating, operating, and maintaining the C4 CMTS.

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Prerequisite Skill and KnowledgeThis document serves as an introduction to the C4 CMTS for all administrators and users of cable modem termination systems. Ideally, users of this documentation and equipment should have a basic knowledge of the following: RF measuring equipment Provisioning servers Command Line Interface (CLI) RF cable plant and operating methods

PurposeThis document provides a comprehensive view of the C4 CMTS including reference and procedural information required to manage and control the C4 CMTS.

Conventions Used in this DocumentThis section presents the textual conventions used in this documentation set.

AdmonishmentsThere are three levels of admonishments used in this documentation. The first is a simple note. NOTE Notes are intended to highlight additional references or general information related to a procedure, product, or system. The international symbols, Caution and Warning, appear in this book when you must perform procedures involving risk.

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CAUTION

Cautions indicate risk of dropping traffic, losing data, or damaging equipment. Read the accompanying instructions and proceed with caution.

WARNINGThe warning symbol represents a risk of bodily injury or serious damage to the equipment. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and fiber optics and follow standard procedures for preventing accidents and serious damage.

Textual ConventionsThe conventions used in this guide are shown in the following table: Table 1-1: Examples of Textual Conventions Type of text CLI commands and other user input Names of chapters and manuals Menu selections System responses and screen display Description Monospaced bold (courier) Example configure slot type NAM chapter 1, AboutThis Manual From the File>Set-up menu choose Time since the CMTS was last booted: 12 days, 2: 8: 14

Italicized textPlain-faced text Monospaced font (courier)

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How to Contact UsProduct Information and Support If you have questions about the ARRIS C4 CMTS, G2 IMS software, please direct your technical support requests to ask.arrisi.com. The Technical Support Contact information is summarized in the following table. Contact information is also available from our Web site at http://www.arrisi.com/contact_us/support/index.asp. Table 1-2: Product Technical Support Contacts C4 CMTS Support Information NORTH AMERICA E-mail Toll Free Phone Worldwide Phone Hours LATIN AMERICA E-mail Phone Hours EUROPE E-mail Phone Hours ASIA (except Japan & Korea) E-mail Phone Hours JAPAN - Tokyo Office E-mail Phone Hours [email protected] +81 (0) 3 5371.4142 9 am to 5 pm (09:00 to 17:00) Tokyo local time [email protected] +82 2 6007 2880 9:30 am to 6 pm (09:30 to 18:00) Seoul local time [email protected] +31 23.554.3880 (English, Spanish, French and German) 08:30 to 17:30 pm CET [email protected] +56.2.369.5628 9 am to 6 pm (09:00 to 18:00) (Santiago, Chile local time) [email protected] 1+.888.221.9797 (North America Only) 1+678.473.5656 8 am to 8 pm (08:00 to 20:00) Eastern Standard Time

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Table 1-2: Product Technical Support Contacts C4 CMTS Support Information JAPAN - Fukuoka Office E-mail Phone Hours Korea Office E-mail Phone Hours [email protected] +82 2 6007 2880 9:30 am to 6 pm (after hours 1-678-473-6565) [email protected] +81 92 473.2671 9:30 am to 6 pm (09:30 to 18:00) Fukuoka local time

Emergency support is available after normal business hours by calling the same numbers listed above. Additional contact information can be obtained from the ARRIS web page at http://www.arrisi.com and clicking on the link to the Customer Center. Training Information ARRIS Training is the authorized organization for training on voice, data, and provisioning products. Web-based, instructor-led, and customized courses are available at our U.S. training center in Atlanta. On-site training is available.To obtain pricing for on-site training and other training information, visit our web site: http://www.arrisi.com Comments on this Document Our goal has been to create a document that best fits your needs. We are interested in your suggestions for improving this document. Please use the form at the back of this book to address any comments or questions you may have regarding this documentation.

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C4 CMTS Features

TopicsC4 CMTS Feature Descriptions by Software Release Feature Descriptions

Page4 8

This chapter introduces the C4 CMTS and its features, functionality, and components. This chapter contains the following topics: Descriptive and reference information Features list

DOCSIS 2.0 ComplianceIn December, 2004, the C4 Cable Modem Termination System (CMTS) received DOCSIS 2.0 requalification by CableLabs with the new software upgrade designed to support DOCSIS Set-top Gateway (DSG) technology. With this qualification, the C4 CMTS, configured with the higher density 2Dx12U CAM provides the most reliable and scalable CMTS solution currently available. Using it, MSOs can provide their customers with advanced voice and high-speed data solutions. The C4 CMTS supports DOCSIS Set-Top Gateway (DSG), allowing operators to transition the signaling, provisioning and control of advanced settop boxes from proprietary to standards-based protocols. This transition of all services to IP-based standards is expected to streamline operations and lower capital costs for cable operators. The DOCSIS 2.0 standard greatly improves performance in the upstream path of the cable network. The growing demand for peer-to-peer file

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sharing, interactive gaming, and voice over IP telephony increases the need for upstream bandwidth. The following enhancements are available to CMTSs and CMs that comply with the 2.0 standard while maintaining all the DOCSIS 1.1 and 1.0 functionality: Enhanced upstream capacity Greater maximum upstream throughput up to 30.72 mbps per channel Greater upstream channel width up to 6.4 Mhz New upstream channel modulation rates: 8QAM, 32QAM, and 64QAM Longer preamble to facilitate synchronization up to 1536 bits Higher powered preamble QPSK-1 Enhanced noise cancellation and error correction Synchronous-Code-Division Multiple Access (SCDMA) operation along with the standard TDMA and ATDMA techniques for combining CM signals onto a given upstream channel.

Fault Detection and RecoveryThe C4 CMTS employs: Advanced data-path integrity checks (parity, CRC, loopbacks, pings) Continuous system audits Multiple levels of error detection.

Fault recovery on the C4 CMTS: Rapidly isolates faults Decreases diagnostic and repair time Reduces the probability of fault propagation Minimizes impact on subscriber services.

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Interfaces and ProtocolsOpen interfaces and protocols allow seamless integration with existing network management infrastructures. The primary protocols supported by the C4 CMTS include the following: Simple Network Management Protocol (SNMP) v1, v2c, and v3 DOCSIS 1.1, DOCSIS 2.0 and Cadant MIBS Command Line Interface (CLI) File Transfer Protocol (FTP) Telnet Routing Information Protocol (RIPv2) Open Shortest Path First (OSPFv2)

Security FeaturesUnique security measures ensure plant and subscriber integrity through: DOCSIS 1.1 BPI+ encryption Administrative isolation by means of a separate physical interface Packet filtering Proxy ARP Password and key authentication for RIP and OSPF Authentication using RADIUS Secure Shell (SSH) Access Control Lists (ACLs) Multi-stage Denial of Service throttling mechanisms in hardware and software TACACS+ Protocol throttling

IP Filtering OptionsThe IP filtering feature is dependent on the subscriber management MIB.1

1. For information on the applicable standards, see the appropriate draft documents of the Internet Engineering Task Force at www.ietf.org. Look for the latest version of DOCSIS Subscriber Management MIB.

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C4 CMTS Feature Descriptions by Software ReleaseThe ARRIS C4 CMTS Release 5.0 aggregated Feature Set is comprised of the Baseline Feature Set, plus the features of software Releases 3.0, 3.3, 4.0, 4.1, and 4.2. Baseline Features The ARRIS C4 CMTS feature set includes: Complete DOCSIS 1.1 support Maximum cable interface density per rack unit High scalability Guaranteed Service Level Agreements (SLAs) support IGMPv2 & Multicast Flow Support Carrier-class availability and operation Static Layer 3 Routing Layer 3 Router Functionality including

Release 3.0 Features

Router Information Protocol (RIPv2) Open Shortest Path First (OSPFv2) Equal Cost Multipath Load Balancing (ECMP)

FlexCAM Technology for CAM sparing (hitless operation for sparing groups up to 7+1) Dynamic Route Redundancy Control Complex Redundancy

The following features were added with Release 3.0: GigE Network Access Module (Gig-E NAM) Authentication using RADIUS Secure Shell (SSH) In-Band Management and Access Control Lists (ACLs) Upstream Load Balancing (ULB) Multiple syslog servers

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The following features or improvements have been added for release 3.3: PacketCable Qualification Increased subscriber limits per chassis: 24K CM Increased VoIP Call Capacities Improved Password Recovery Loopback Interface Multiple Subinterfaces per VRF Loopback Interfaces for routing protocols Number of filters in group increased to 31 Support for Authentication, Authorization, and Accounting (AAA) [RADIUS & TACACS+] In-Band Management: Access to the SCM via the loopback IP address Support for Packet Cable Automatic System Backup during Upgrade Improved Baseline Privacy Interface (BPI) Domain Name System (DNS) Support for Telnet, Traceroute, and Ping

CLI Improvements: Extended ping command show ip interface brief show temperature reset all CMs traceroute CLI command configure authorization COS and 1.0 Modems configure logging priority configure privilege exec level

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The following features or improvements have been added for release 4.0: 2Dx12U CAM full DOCSIS 2.0 (A-TDMA and S-CDMA) Proprietary automatic ingress noise cancellation Flash disk re-partitioning Graceful restart with OSPFv2 Real-time FFT of upstream (compatible with C3 CMTS MIBs) NAM IP interface bundling Increased subscriber limits per chassis: 32,000 CMs per chassis, and 3,000 CMs per downstream (500 per upstream in 1x6 operation) Preemption of normal calls by new emergency calls when BW is limited Additional audits: FCM, file system, 2Dx12U CM reset clear trap Flap List enhancements:

percent of station maintenance ranging opportunities that receive a range request - number of power adjustments exceeding a threshold Number of CRC errors per CM (2D only) Number of bytes dropped per CM (congestion and policing) Virtual System Controller CLI Improvements:

-

show/copy running-config show cable qos profile assign and display in output name/description for each interface

To look up syntax and parameters for individual CLI commands, see chapter 29, CLI Command Descriptions. Each entry in the alphabetical list of commands is a hyperlink to the appropriate page in the manual. Automatic fan speed control Encrypt the MD5 shared secret for routing protocols in CLI output Disable ICMP Unreachables OSPF "point-to-point" interface support Increased AC/DC power solution Voice call requirements:

-

At least 1,000 MTAs per downstream At least 5,000 BHCAs with completion rate of 99.5% At least 260 half-calls per downstream

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NOTE The voice call requirements are reduced by one-half in a mixed voice and data environment. Release 4.1 Features The following features or improvements have been added for release 4.1: Release 4.2 Features Committed Access Rate Global Traffic Shaping for TCP Traffic Remote Query of Cable Modems

The following features or improvements have been added for release 4.2: DOCSIS Set-top Gateway (DSG) Agent Associate ACL with SNMP Community String Advanced CM Config File Verification Scalability 52K CMs per chassis Modify overload control to ensure "older" CMs range/register in reasonable time through overload conditions (chassis reboot, CAM insertion, etc.) "Debug" IP Filter Packet Capture capability (ability to capture packet headers that match IP filters or similar functionality) PacketCable Multimedia Network side ACLs Support for 16 telnet sessions Clear the IP filter counters through the CLI Hitless software update PacketCable 1.x Voice call requirements

-

MTAs /downstream (1D) 1000 MTAs/downstream (2D) 1500 MTAs/C4 20000 - Lines/downstream 1800 Lines/C4 24000 - BHCA/downstream 5000 BHCA/C4 66600 - Simultaneous half calls/downstream 260 Programmable unicast request opportunity polling interval

NOTE The voice call requirements specifically assume that only GNAMs are used. If the system contains any FastENAMs, the per-chassis line and MTA limits must be reduced to 1000.

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Certain features may impact software upgrade procedures. For more information related to upgrades or for non-conformance issues, see the C4CMTS Software Upgrade Notes. This file is included on the software CD.

Feature DescriptionsIn addition to the previously described features and functionality, the following section describes the C4 CMTS feature set for Release 5.0. This includes:

Release 5.0 FeaturesThe following is a list of the new features included in Software Release 5.0.x: FlexPath Dynamic Load Balancing Legal Intercept PIM-SSM IGMP ACLs Secure NTP DHCP Test Injection Named Access-List Additional Modem States Integrated Upstream Agility Clear cable host/modem (MAC DB) ARP Throttling Number of supported VRFs increased to 32 Downstream center frequency step size is now 125 kHz (formerly 250) DOCSIS 1.1 DSx/DQOS and PacketCable 1.x Voice Scalability Improvements with Respect to Release 4.2:

-

MTAs/downstream (1D) MTAs/downstream (2D) MTAs/C4 equipped w/GNAMs Lines/downstream Lines/C4 BHCA/downstream BHCA/C4 Simultaneous half calls/downstream Connections/second per chassis

1,000 (no change) 1,500 (no change) 26,666 1,800 (no change) 32,000 5,000 (no change) 90,000 260 (no change) 25

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NOTE NOTE: these call capacities assume that the C4 CMTS is equipped with GNAMs. If the chassis is equipped with Ethernet NAMs, the number of MTAs supported is only 10,000. FlexPath Channel Bonding Cable Modem Deny List CPE Host Authorization Configure Cable Modem Vendor OUI Show Cable Modem Columns

FlexPath Channel Bonding provides the second generation of the FlexPath Channel Bonding (formerly known as ARRIS Wideband) which maintains the proprietary DOCSIS downstream channel bonding solution introduced in C4 CMTS Release 4.3 and adds support for up to four traffic-bearing upstream channels. The Dynamic Load Balancing feature automatically moves modems from one upstream channel to another, or from one downstream to another (including from one 2Dx12U CAM to another). Requires 2Dx12U CAMs. Legal Intercept provides the MSOs a mechanism for meeting legal requirements to intercept all IP data and voice traffic originated or sent to subscribers on the cable network. Legal Intercept is based on Ciscos implementation described in RFC 3924. The C4 CMTS interprets SNMP SET/GETs to enable/clear/display subscriber taps and send intercepted packets to the Mediation Device. PIM-SSM (Source Specific Multicast) provides the capability to request multicast traffic from a single source and build a source path tree (SPT) from the edge router back to the source of the multicast stream. It also contains requirements to provide SSM multicast data plane counts. IGMP ACLs provide the ability to limit what multicast groups can be joined on an interface by using a standard ACL to indicate what groups are allowed to be joined on an interface. A mechanism is provided for authentication of NTP messages. For MSOs who require NTPv4 functionality, including server or peer authorization, the C4 CMTS will only support the NTPv4 symmetric key MD5 secure hash authentication method. DHCP Text Injection will allow the operator to distinguish which upstream channels DHCP packets originated from as they are forwarded to the DHCP server. The upstream will be identified in the circuit ID sub-option of the DHCP relay agent option (option 82).

Dynamic Load Balancing

Legal Intercept

PIM-SSM

IGMP ACLs

Secure NTP

DHCP Text Injection

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Named Access List

By allowing the use of a description name to identify an access list rather than a number, full modification to an existing access-list (e.g., delete, append and insert new entries) using the ACL name is now available. Also, we are adding the ability to allow multiple remarks per access-list entry. One additional cable modem state indicating the status of the Network Access Control for a registered CM has been added. The CMs Network Access Control state is provided via the modem configuration file. This variable indicates whether or not CPE devises are allowed to access the network through the CM even though the CM is registered. This provides the ability to enable or disable an Upstream Agility state machine for an upstream channel. The state machine includes permissible upstream channel frequencies and operating characteristics (e.g., channel width, modulation profile) along with rules to change from one operating characteristic to another. Enabled the ability to remove cable modems and CPEs from the system including removing them from the MACDB and C4 CMTS MIB tables. Provides the ability to control the number of ARPS and ICMP packets that get generated due to traffic transmitted to IP address that do not have a valid (active or inactive) entry in the ARP cache. This feature provides the ability to configure a cable modem vendor name with the vendors Organizational Unique Identifier (OUI). The OUI is the first three bytes of the six byte CM MAC address. This new command will now allow you to create your own output by specifying exactly which columns you wish to see, thus maximizing your screen space and run-time.

Additional Modem States

Integrated Upstream Agility

Clear Cable Host/Modem ARP Throttling

Configure Cable Modem Vendor OUI Show Cable Modem Column

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Release 5.1.x FeaturesThe following is a list of the new features included in Software Release 5.1.x: FlexPath DOCSIS 3.0-based Channel Bonding Enhancements Enhanced Query Modem Counts on a per Upstream Basis DOCSIS Set-top Gateway Configuration Simplification Source IP Configuration for CM Remote Query DHCP Lease Query Feature Configurability Automatic Gain Control

The 5.1 enhancements to the FlexPath channel bonding solution include the following:

-

3 bonded downstreams x 3 traffic-bearing unbonded upstreams 2 bonded downstreams x 2 traffic-bearing unbonded upstreams 4 bonded downstreams x 1 traffic-bearing unbonded upstream plus 3 non-traffic-bearing upstreams for return path of DOCSIS management messages Optional designation of upstream channels as FlexPath only

The Enhanced Query Modem Counts feature provides a CLI command, show cable modem summary brief, that offers modem totals on a perupstream basis. The total number of modems calculated per upstream includes registered, unregistered, and offline modems. DOCSIS Set-top Gateway (DSG) Configuration Simplification performs the automatic insertion of static multicast group memberships and the automatic insertion of multicast MAC/IP bindings when configuring DSG tunnels. Source IP Configuration for CM Remote Query allows the user to configure the IP address used for remote SNMP get queries to any valid C4 IP address. DHCP Lease Query Feature Configurability adds a source IP address verification phase to the IP address learning process of the C4 CMTS. This configurable Cable Source Verify feature serves to eliminate host-initiated corruption of the layer 2 and layer 3 address spaces on the cable network. Automatic Gain Control uses an improved downstream power calibration algorithm on the 2Dx12U in order to maintain accurate downstream power levels in environments subject to fluctuating temperatures. NOTE QAM128 and Trellis Code Modulation (TCM) are not supported in Release 5.1. SCDMA is supported.

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Release 5.2.x FeaturesChapters 31 through 38 have been added to the Release 5.1 User Manual. to create this document. The following is a list of the new features (that is, chapters 31-38) included in Software Release 5.2.x: Border Gateway Protocol (BGP), version 4 See Overview on page 31-1. CPE Device Classes See Overview on page 32-1. Global User Profile See Overview on page 33-1. Internet Protocol Detail Record (IPDR) See Overview on page 34-1. Legal Intercept This feature was included in Release 5.1 but is improved for this release. See Overview on page 35-1 and Feature Operation on page 35-2. Per-Subscriber Throughput See Overview on page 36-1. Support for Five VRFs for OSPF See Overview on page 37-1. Release 5.2 Bring-up Procedures See Introduction on page 38-1.

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3

C4 CMTS Specifications

TopicsNetwork Diagram C4 CMTS Specifications RF Electrical Specifications Maximum Density Scalability VoIP Call Capacities

Page3 4 6 7 7 9

This chapter introduces the C4 CMTS and its features and functionality. This chapter contains the following topics: Descriptive and reference information Physical design information Power and electrical requirements

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Figure 3-1 illustrates the front view of the C4 CMTS. There are a total of twenty-one slots for modules. There are four main types of modules used to equip the slots in the front. These are sometimes referred to as front cards. Smaller modules, called Physical Interface Cards, or PICs, are inserted in each slot from the rear of the chassis. The PICs provide physical connectors for terminating cables from the subscriber and Internet networks. Between the front and back slots is the midplane of the chassis. Three C4 CMTS chassis can be mounted in a single 19-inch wide, sevenfoot standard rack.

Figure 3-1: The C4 CMTS (front view)

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Network DiagramA cable data network system consists of cable modems (CMs) at subscriber premises, a CMTS at the cable plant operations area, a data-over-cable management software suite integrated with the operator's other management systems, and the HFC cabling that connects it all. DOCSIS defines the standard for communication among these elements. The C4 CMTS provides data switching functions as well as the radio frequency (RF) interface to and from the cable plant. It also provides ethernet interfaces to the Internet Service Provider(s). The data-over-cable management system provides both the end-to-end network management solution and the support for subscriber provisioning. Figure 3-2 shows a typical cable data network architecture.

TFTP Server

TOD Server

DHCP Server

10/100 Ethernet Switch

Router

Internet

AC DC Power Converter

CMTS

CATV Network HFC Plant

Cable Modem

CPE

Figure 3-2: Typical Cable Data Network Architecture

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C4 CMTS SpecificationsThis section is a summary of the C4 CMTS physical characteristics and operating specifications, and information on compliance with regulatory standards. Physical Mounting: Dimensions: 19- or 23-inch rack, or stand-alone Height Width Depth 24.5" 17.4" 20.0" (622 mm) (442 mm) (508 mm) (75.5 Kg)

Power

Chassis Weight (fully equipped): 166 pounds

Operating voltage: nominal -48 VDC, range -44 to -72VDC Note: Once powered up the C4 CMTS will continue to operate if within this voltage range. Start-up voltage range: -44 to -67.5VDC Note: If powered down, the C4 CMTS will not restart successfully if the voltage is not in the range of -44 to -67.5VDC. This offset from the operating range provides a cushion against multiple possible power cycles. Attempted start-ups at the voltage extremes are subject to power fluctuations that could result in multiple power cycles and damage to the equipment. Chassis Power Consumption: 2800W maximum The -44V guaranteed operating limit translates to a maximum current draw of 64A at 2800W.

Safety

The C4 CMTS meets the following safety standards: UL60950 (1999) Third Edition CAN/CSA-C22.2, No. 950-95 IEC60950-1 (2001), First Edition

Electromagnetic Compatibility

The C4 CMTS meets the following: GR-1089-CORE, Issue 3 (FCC - Part 15, Class A) EN 300 386 v1.3.1 (CISPR 22, Class A)

Network Interfaces

The C4 CMTS is equipped with the following interfaces: 10 Base-T (SCM Maintenance Port) 10/100 Base-T (FastE or GigabitE NAM) 1000 Base-TX, 1000 Base-SX, 1000 Base-LLX, 1000 Base-LX (GigabitE NAM)

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Environmental

Thermal The C4 CMTS meets the following environmental standards: NEBS GR-63-CORE, ETS 300 019

Operating temperature: Short term1: -5 to +55C Long term: +5 to +40C Non-operating temperature: -40 to +70C Operating humidity Short term: 5 to 90%, non-condensing Long term: 5 to 85% Non-operating humidity: 5 to 95%, non-condensing

Mechanical NEBS GR-63-CORE ETS 300 019

In-use (Class3.1E) Storage (Class 1.2) Transportation (Class 2.3)

Other NEBS Level 3 Criteria (SR-3580) Acoustic Noise Criteria:

WEEE (Waste Electrical and Electronic Equipment)

NEBS (GR-63-CORE) ETSI (ETS 300 753) Altitude Criteria (NEBS GR-63-CORE) Illumination Criteria (NEBS GR-63-CORE)

As indicated by the symbol below, disposal of this product in participating European Community member states is governed by Directive 2002/96/EC of the European Parliament and of the Council on waste electrical and electronic equipment (WEEE). WEEE could potentially prove harmful to the environment; as such, upon disposal of the C4TM CMTS and its components, the Directive requires that this product must not be disposed as

1. Short term refers to a period of not more than 96 consecutive hours and a total of not more than 15 days in one year. (This equals a total of 360 hours in a given year, but no more than 15 occurrences in that one-year period. (Telcordia, GR-63-CORE, Section 4.1.2, Issue 2, April 2002.)

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unsorted municipal waste, but rather collected separately and disposed of in accordance with local WEEE ordinances.

Figure 3-3: WEEE Symbol

RF Electrical SpecificationsThe following table lists the downstream RF electrical specifications. Table 3-1: Downstream RF Electrical Specifications Center frequency range: North America Europe Frequency step size Modulation types Downstream channel width: North America (Annex B) Europe (Annex A) Annex B symbol rates in Msym/sec Annex A symbol rate in Msym/sec Raw bit rate: Annex B 64QAM 256QAM) Raw bit rate: Annex A 64QAM 256QAM) Output signal range Return loss Transmit output power accuracy Output impedance 91 - 857 MHz 112 - 858 MHz 125 kHz 64QAM, 256QAM 6 MHz 8 MHz 64QAM: 256QAM: 64QAM or 256QAM: 30.342 Mbps 42.884 Mbps 41.712 Mbps 55.616 Mbps 50-61 dBmV < 14 dB in-band Adjustable to within +/-.5 dB 75 5.056941 5.360537 6.952

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The following table lists the upstream RF electrical specifications. Table 3-2: Upstream RF Electrical Specifications Upstream frequency band: North America Europe Japan RF channel spacing Modulation types Raw bit rate Forward error correction 5 - 42 MHz 5 - 65 MHz 5 - 55 MHz < 1 kHz Type 4 TLVa: QPSK, 16QAM Type 5 TLV: QPSK, 8QAM, 16QAM, 32QAM, and 64QAM 30.72 Mbps max Reed-Solomon (T = 1-16)

a. Type-Length-Value (TLV) 4 or 5 are codes used in UCD messages to indicate DOCSIS 1.x or 2.0 compatibility, respectively.

The following is a list of receiving input levels for upstream channels: Table 3-3: Receiving Input Levels for Upstream Channels Channel Width (kHz) 200 400 800 1600 3200 6400 Maximum Density Symbol Rate (ksm/sec) 160 320 640 1280 2560 5120 Maximum Range (dBmV) -16 to +14 -13 to +17 -10 to +20 -7 to +23 -4 to +26 -1 to +29

The C4 CMTS supports both small and large scale subscriber deployments. The C4 CMTS chassis supports up to 32 downstream channels and 192 upstream channels. Up to three chassis can be installed in a standard 7-foot high, 19-inch wide frame. A fully configured rack supports a maximum of 96 downstream and 576 upstream channels. Operating ratios of downstream to upstream channels range from 1:1 to 1:12, assuming use of the 2Dx12U Cable Access Module.

ScalabilityARRIS offers a number of combinations of downstream to upstream channel ratios to improve scalability. With the ability to accommodate

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many configurations, the CMTS can grow to meet evolving subscriber traffic considerations along with reducing inter-shelf cabling. This leads to lower cost for installation, operations, and maintenance. Using multiple NAM ports within one CMTS chassis enables use of dynamic route redundancy. This allows an MSO to set multiple routes to a single destination. These routes can be provisioned on different NAM ports with different weights, thus providing a NAM redundancy strategy. A fully equipped C4 CMTS chassis offering basic service will provide reasonable performance up to the following suggested subscriber limits: 52,000 CMs per chassis 128,000 ARP cache entries 128,000 Destination IP entries (using GigE NAM) 4,500 CMs/downstream (2Dx12U CAM) Up to 500 CMs for each upstream of a 2Dx12U CAM configured for 1Dx6U service.

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VoIP Call CapacitiesThe following Voice over Internet Protocol hardware and call limits apply to C4 CMTSs configured for DSx/DQoS VoIP or PacketCable voice. The Multimedia Terminal Adapter (MTA) is a telephony modem: MTAs per downstream (1Dx8U CAM): MTAs per downstream (2Dx12U CAM): MTAs per C4 CMTS: Lines per downstream Lines per C4 CMTS: 1,000 1,500 26,666 1,800 32,000

Busy Hour Call Attempts (peak 60-minute call loads supported) BHCA per downstream: BHCA per C4 CMTS: Simultaneous half-calls/downstream Connections per second per chassis 5,000 90,000 260 25

Call load performance is based on the following assumptions: Lines per subscriber: Centi-Calls per Second (CCS) per line: Hold time: Call Completion Rate: 1.2 5 180 seconds 99.5%

These limits specifically assume that only GigE NAMs are used. If the system contains any FastE NAMs, the per-chassis line and MTA limits must be reduced to 10,000. These limits also depend on the following: MTAs/lines are distributed evenly across 4 upstreams per downstream 256 QAM downstream 16 QAM upstream 3.2 MHz upstream channel width Upstreams 0-5 on MAC domain 0; upstreams 6-11 on MAC domain 1

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4

C4 CMTS Power Requirements

TopicsComponents of the Power System Power Protection Description

Page1 3

The C4 CMTS requires two -48V power feeds, named A and B. The source can be an external battery plant or independent AC/DC power supplies. In the event the A or B feed fails or is removed from service for maintenance, the other feed continues to supply power to the C4 CMTS with no interruption in service. NOTE Review the total current consumption of all equipment on the same line before supplying power to the C4 CMTS. Avoid sharing a power source that requires large currents.

Components of the Power SystemPower is filtered and conditioned by a Power Conditioning Module (PCM) for each feed. The PCM contains the power input connector, main breaker, and all active circuitry for power distribution over a power bus. The PCM: Soft starts the chassis on power up Filters noise and power disturbances from the power feeds Monitors the power draw of the chassis and shuts down a branch circuit in the event of a power fault

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Each PCM is removable and can be replaced without interrupting power to the C4 CMTS in a duplex power configuration.

Front Panel Access

Protective panels mounted on the front of the chassis flip open, as illustrated in Figure 4-1. The top single panel flips up to reveal the power panel and power LEDs. The mid and lower matching panels flip open to allow access to the ejector clips for the front modules. Another small panel is found beneath the lower matching pane. The chassis slot numbers are printed on it; it flips down to allow access to the air filter.

Access to Power Panel

Power Panel

Access to Modules Modules

Air Filter Fan Modules

Figure 4-1: C4 CMTS Front Access Panels Figure 4-2 shows the LEDs and power switches for Buses A and B. The system alarm and power indicator LEDs are in the middle of this panel.

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SYSTEM

ALARMS

CRITICAL

ON OFF/ FAIL A B C D

MAJOR


MINOR

POWER

Figure 4-2: LED and Power Bus Switches

Power Protection DescriptionThe C4 CMTS chassis power configuration consists of three levels of protection: A and B power feeds controlled by circuit breaker in the PCM Internal chassis branch fuses located in the PCM Fuses located on the front modules (These fuses are not field replaceable)

The C4 CMTS must be installed only by trained service personnel who are familiar with the precautions required when working in a 48V DC power delivery environment. Power requirements are listed in C4 CMTS Specifications on page 3-4.

A and B Power Feeds

Power is supplied to the C4 CMTS via A and B feeds located at the rear of the unit. The power feeds are protected by two 70-amp breakers located on the rear of the chassis, shown in Figure 4-3. This is the first level of protection.

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They also serve as the master disconnect switch for the unit. The breakers protect the high current-carrying cables within the C4 CMTS and the power connectors located at the rear of the unit.

POWER CABLE B

POWER CABLE A

Breaker switch for Power Module B

Breaker switch for Power Module A

Figure 4-3: C4 CMTS Power Feeds (chassis rear)

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Internal Branch Protection

Each A and B power feed is further divided into four internal chassis distribution branches, A through D. Each of these branches is protected by a 20-amp fuse located in the PCM. These fuses constitute the second level of protection. They are not field replaceable, nor can they be reset. These feeds supply power to the C4 CMTS midplane and to all circuit modules. Power is distributed to the twenty-one slots by the four branches as shown in Figure 4-4.SYSTEM ALARMSCRITICAL


MAJOR


MINOR

POWER

Network Access Module (NAM)

Network Access Module (NAM)

0

1

2

3

4

5

6

7

8

9

10 11 12 13 14

Documents

ARRIS® C4® CMTS C4 Cable Modem Termination System