Cisco cBR Converged Broadband Routers Layer 2 and DOCSIS 3.0 Configuration Guide for Cisco IOS XE Gibraltar 16.12.x First Published: 2019-07-12 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 © 2019 Cisco Systems, Inc. All rights reserved. CONTENTS CHAPTER 1 Downstream Interface Configuration 1 Finding Feature Information 1 Hardware Compatibility Matrix for the Cisco cBR Series Routers 1 Information About Downstream Interface Configuration 2 How to Configure Downstream Interfaces 4 Configuring the Cisco CMTS Manually Using Configuration Mode 4 Configuring the QAM Profile on the Downstream Channels 4 Configuring the Frequency Profile on the Downstream Channels 5 Configuring the Controller on the Downstream Channels 6 Troubleshooting Tips 7 Configuring the RF Channel on a Controller 7 Configuration Examples 9 Additional References 12 Feature Information for Downstream Interface Configuration on the Cisco cBR Router 12 CHAPTER 2 Upstream Interface Configuration 13 Finding Feature Information 13 Hardware Compatibility Matrix for the Cisco cBR Series Routers 13 Information About Upstream Interface Configuration 14 How to Configure Upstream Interfaces 15 Configuring the Cisco CMTS Manually Using Configuration Mode 15 Configuring the Modulation Profile and Assigning to an Upstream Channel 15 Configuring the Upstream Channel with PHY Layer 16 Associating Upstream Channels with a MAC Domain and Configuring Upstream Bonding 17 Configuration Examples 18 Additional References 19 Cisco cBR Converged Broadband Routers Layer 2 and DOCSIS 3.0 Configuration Guide for Cisco IOS XE Gibraltar 16.12.x iii Contents Feature Information for Upstream Interface Configuration on the Cisco cBR Router 19 CHAPTER 3 DOCSIS Interface and Fiber Node Configuration 21 Hardware Compatibility Matrix for the Cisco cBR Series Routers 21 Overview of DOCSIS Interfaces and Fiber Node Configurations 22 Downstream Features 22 Upstream Features 23 MAC Domains (Cable Interfaces) 23 Fiber Nodes 23 Configuring DOCSIS Interfaces and Fiber Nodes 24 Configuring Upstream Channels 24 Verifying the Controller Configuration 24 Binding Upstream Channels to MAC Domain 24 Configuring Primary Capable Downstream Channels 26 Verifying Downstream Configuration in Controller 26 Configuring Integrated-cable Interface 26 Binding Primary Capable Downstream Channels to a MAC Domain 28 Configuring MAC Domain Service Groups 29 Configuring the Fiber Nodes 29 Verify MD-DS-SG Channel Membership 31 Verify MD-US-SG Channel Membership 32 Downstream Bonding Group Configuration 32 Configuring Wideband-cable Interface (Downstream Bonding Grouping) 32 Verifying the Bonding Group Interfaces 34 Upstream Bonding Group Configuration 36 Restrictions for Upstream Bonding Groups 36 Configuring Upstream Bonding Groups 36 Verifying Upstream Bonding Groups 38 Additional References 39 Feature Information for DOCSIS Interface and Fiber Node Configuration 39 CHAPTER 4 Service Group Based Configuration of the Cisco cBR Router 41 Service Group Profile Based Configuration 41 Service Profile Configuration for 16x8 with One MAC Domain 43 Cisco cBR Converged Broadband Routers Layer 2 and DOCSIS 3.0 Configuration Guide for Cisco IOS XE Gibraltar 16.12.x iv Contents Service Profile Configuration for 16x8 with Two MAC Domains 45 MAC-Domain Split Configuration 47 CHAPTER 5 DOCSIS Load Balancing Groups 51 Hardware Compatibility Matrix for the Cisco cBR Series Routers 51 Prerequisites for DOCSIS Load Balancing Groups 52 Restrictions for DOCSIS Load Balancing Groups 53 Information About DOCSIS Load Balancing Groups 54 Service-Based Load Balancing 54 RLBG/GLBG Assignment 55 Channel Assignment 56 Upstream Load Balancing for DOCSIS 3.0 Cable Modems in Single Upstream Mode 59 Auto-generate DOCSIS 2.0 GLBG 59 Independent Upstream/Downstream Throughput Rules 59 How to Configure DOCSIS Load Balancing Groups 60 Configuring DOCSIS 3.0 and 2.0 RLBG and DOCSIS 2.0 GLBG 61 Configuring DOCSIS 3.0 GLBG 63 Configuring a DOCSIS 3.0 General Load Balancing Group 64 Configuring Default Values of DOCSIS 3.0 Load Balancing Group 65 Configuring Cable Modems to RLBG or a Service Type ID 66 Configuring Rules and Policies 67 Troubleshooting Tips 67 Configuring Load Balancing Parameter for a Cable Modem Movement Failure 68 Creating and Configuring TLV type Tag 68 Configuration Examples for DOCSIS Load Balancing Groups 70 Example: Configuring a Tag 70 Example: Disabling Load Balancing 71 How to Configure Load Balancing with Operational Simplification 71 Load Balancing Groups with Operational Simplification 74 Verifying DOCSIS Load Balancing Groups 75 Additional References 80 Feature Information for DOCSIS Load Balancing Groups 80 CHAPTER 6 DOCSIS Load Balancing Movements 81 Cisco cBR Converged Broadband Routers Layer 2 and DOCSIS 3.0 Configuration Guide for Cisco IOS XE Gibraltar 16.12.x v Contents Hardware Compatibility Matrix for the Cisco cBR Series Routers 82 Prerequisites 83 Prerequisites for Load Balancing 83 Prerequisites for Dynamic Channel Change for Load Balancing 84 Prerequisites for Dynamic Bonding Change for DOCSIS 3.0 Static Modem Count-Based Load Balancing 84 Restrictions 84 Restrictions for Load Balancing 84 Restrictions for Dynamic Channel Change for Load Balancing 86 DCC Restrictions with N+1 Redundancy and Inter-Card Load Balancing 87 Restrictions for DOCSIS 3.0 Static Modem Count-Based Load Balancing 87 Restrictions for Dynamic Bonding Change for DOCSIS 3.0 Static Modem Count-Based Load Balancing 87 Restrictions for MRC-Only Cable Modems 88 Information on the Load Balancing on the Cisco CMTS 88 Feature Overview 89 Methods to Determine When Interfaces Are Balanced 89 Modems Method 89 Utilization Method 90 Load Balancing Parameters 91 Configurable Minimum Threshold under Utilization Method 91 Single Channel Load Balancing 91 Error Handling of Channel Assignment 91 Downstream Load Balancing Distribution with Upstream Load Balancing 91 Upstream Load Balancing for DOCSIS 3.0 Cable Modems in Single Upstream Mode 93 Interaction with Spectrum Management 93 Using Dynamic Channel Change 93 Multiple Channel Load Balancing 94 Algorithm for Bonded Channel Cable Modem Load Balancing 94 DOCSIS 3.0 Static Modem Count-Based Load Balancing 94 Dynamic Load Balancing for DOCSIS 3.0 Cable Modems 96 Multiple Channel Load Balancing Operation 97 Using DBC for DOCSIS 3.0 Load Balancing Movement 101 Benefits of Load Balancing 103 Cisco cBR Converged Broadband Routers Layer 2 and DOCSIS 3.0 Configuration Guide for Cisco IOS XE Gibraltar 16.12.x vi Contents Exclude Cable Modems from Load Balancing Groups 104 How to Configure Load Balancing 104 Enabling Single Channel Load Balancing 105 Configuring Dynamic Bonding Change for DOCSIS 3.0 Static Load Balancing 105 Excluding Cable Modems from a Load Balancing Group 105 Distributing Downstream Load Balancing with Upstream Load Balancing 106 How to Configure Dynamic Channel Change for Load Balancing 107 Configuring Dynamic Channel Change for Load Balancing 108 Verifying Load Balancing Operations 109 Example 110 Troubleshooting Tips 111 Configuration Examples for Load Balancing 113 Example: Configuring Dynamic Channel Change for Load Balancing 114 Additional References 117 Feature Information for DOCSIS Load Balancing Movements 117 CHAPTER 7 DOCSIS 3.0 Downstream Bonding 119 Hardware Compatibility Matrix for the Cisco cBR Series Routers 119 Information About DOCSIS 3.0 Downstream Bonding 120 Receive Channel Profile 121 Receive Channel Configuration 121 RCC Template 121 Channel Assignment 121 Downstream Traffic Forwarding 122 Service Flow Priority in Downstream Extended Header 122 How to Configure RCP and RCC Encoding 122 Configuring the RCP ID 122 Configuring the RCC Templates 125 Assigning an RCC Template to a MAC Domain (Cable Interface) 127 Verifying the RCC Configuration 130 How to Configure Attribute Masks 131 Configuring Provisioned Attributes for an Integrated Cable Interface 132 Configuring Provisioned Attributes for a Wideband Cable Interface 133 Verifying the Attribute-Based Service Flow Assignments 133 Cisco cBR Converged Broadband Routers Layer 2 and DOCSIS 3.0 Configuration Guide for Cisco IOS XE Gibraltar 16.12.x vii Contents How to Enable Service Flow Priority in Downstream Extender Header 135 Enabling Service Flow Priority in Downstream Extender Header 135 Verifying the Enablement of the Service Flow Priority in Downstream Extended Header 135 Enabling Verbose Reporting for Receive Channel Profiles 137 Configuration Example for an RCC Template 138 Additional References 139 Feature Information for DOCSIS 3.0 Downstream Bonding 139 CHAPTER 8 DOCSIS 2.0 A-TDMA Modulation Profiles 141 Hardware Compatibility Matrix for the Cisco cBR Series Routers 141 Prerequisites for DOCSIS 2.0 A-TDMA Modulation Profiles 142 Restrictions for DOCSIS 2.0 A-TDMA Services 143 Information About DOCSIS 2.0 A-TDMA Services 143 Modes of Operation 144 Modulation Profiles 145 Benefits 146 How to Configure DOCSIS 2.0 A-TDMA Services 146 Creating Modulation Profiles 146 Creating a TDMA Modulation Profile 146 Creating a Mixed Mode Modulation Profile 147 Creating an A-TDMA Modulation Profile 148 Configuring the DOCSIS Mode and Profile on an Upstream 149 Monitoring the DOCSIS 2.0 A-TDMA Services 150 Displaying Modulation Profiles 150 Displaying Cable Modem Capabilities and Provisioning 151 Configuration Examples for DOCSIS 2.0 A-TDMA services 152 Creating Modulation Profiles Examples 153 Example: DOCSIS 1.0/DOCSIS