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General| Model | 7246VXR |
|---|---|
| Product Series | uBR |
| Category | Network Router |
| Slots | 6 |
| Data Transfer Rate | Up to 1 Gbps |
| Operating System | Cisco IOS |
| Expansion Slots | 6 |
Records technical changes made to the document over time.
Describes the purpose and scope of the configuration guide.
Identifies the intended readers for the Cisco uBR7200 series guide.
Outlines the structure of the guide, summarizing chapters and procedures.
Explains the typographical and command syntax conventions used.
Provides definitions for key terms and acronyms used in the document.
Lists additional Cisco documents for further information and support.
Details supported Cisco IOS release trains, images, and memory requirements.
Describes the Cisco uBR7200 series routers, their supported hardware features, and interoperability.
Summarizes features requiring software configuration and hardware/interface details.
Summarizes router software features and directs to additional configuration info.
Familiarizes with DOCSIS architectural fundamentals and interoperability.
Describes basic parameters, passwords, and initial configuration utilities.
Explains how to configure a new router automatically using AutoInstall.
Guides on using the System Configuration dialog for CMTS configuration.
Provides instructions for manual router configuration if Setup or AutoInstall are not used.
Details how to store configuration changes to NVRAM using copy running-config.
Provides instructions for required downstream configuration tasks.
Provides instructions for required upstream configuration tasks.
Provides instructions for optional CM interface configurations for performance/security.
Describes DOCSIS 1.0 BPI, key management, CM communication, and illustrations.
Provides guidelines for enabling DOCSIS 1.0 BPI on the Cisco uBR7200 series.
Provides an overview of the features in DOCSIS 1.1 Baseline Privacy Interface Plus.
Provides instructions to require CMs to return a known text string for network access.
Limits the time a CM requests a channel for the first time from the Cisco uBR7200 series.
Ensures only CMs with DHCP leases can access the HFC network.
Configures algorithms controlling contention subchannel capacity and efficient usage.
Enhances upstream throughput by tuning MAP lookahead time based on channel parameters.
Describes parameters for configuring and maintaining basic broadband Internet access.
Provides factory-supplied configurations for downstream RF and upstream frequency.
Includes sample configuration file features for basic DOCSIS Internet Access.
Describes CNR as a dynamic IP address management system using DHCP and scripts.
Lists scripts applicable to cable interface configuration.
Explains how to activate scripts after placing them in the appropriate directory.
Details commands for proper communication with scripts in the system.
Describes adding options to the system default policy for cable modems and PCs.
Explains how to create and use scope selection tags for CNR configuration.
Provides CNR configuration steps when subinterfaces are configured on the router.
Summarizes cable-related show commands for deriving system information.
Uses a Cisco uBR924 modem to verify downstream signal originating from the router.
Explains how the system determines optimum power level for CMs with low SNR.
Provides configuration commands to create downstream test signals.
Helps diagnose channel health between the router and CM for unresponsive modems.
Provides instructions for troubleshooting cable interface line cards using debug commands.
Explains installing Cisco IOS software onto "run-from-RAM" routers using TFTP or rcp.
Outlines steps to perform prior to installing or upgrading Cisco IOS software.
Details the requirements and configuration for setting up a TFTP server.
Guides on obtaining the necessary Cisco IOS software image for the router.
Provides crucial caution regarding saving configurations in boot mode.
Explains how to determine and add the default gateway in the router configuration.
Addresses common errors during software transfer, like checksum failures.
Guides on troubleshooting issues when the show version command doesn't display the loaded image.
Helps resolve problems when the router displays the Rxboot prompt after reloading.
Provides sample Cisco uBR7246 configuration file for QAM 16 spectrum and modulation.
Shows sample configuration for 56-bit/40-bit encryption/decryption and BPI.
Illustrates configuration for Euro-DOCSIS channel plans using the MC16E line card.
Demonstrates setting up a VPN between two termination points.
Shows configuration for connecting branch offices via a GRE tunnel.
Provides a sample voice over IP configuration file for the Cisco uBR7246.
Shows configuration for synchronizing to an external timing reference.
Provides a sample Cisco uBR7200 series configuration file supporting telco return.
Provides information on NTSC 6-MHz channel bands and their frequencies.
Provides information on PAL and SECAM 8-MHz channel bands and their frequencies.
Explains the meaning of each configuration memory bit for the router.
Provides information about the boot field bits (bits 3, 2, 1, and 0).
Describes how Bit 8 controls the console Break key functionality.
Shows how to view the configuration register value using the show version command.
Explains how to view the configuration register while in ROM monitor mode.
Details how to set the configuration register using the config-register command.
