Cisco Systems uBR7246 manual Prerequisite Tasks

Page 5

List of Terms

Prerequisite Tasks

Before you can configure Cisco uBR7246 universal broadband router features, you must first:

•Make sure that your current network is designed to support broadband transmission. At the very least, your network must include the following:

—Computer on the WAN side of your Cisco uBR7246 configured as a DHCP server to assign IP addresses to cable modems on the HFC network.

—Cisco uBR7246-compatible IF-to-RF upconverter installed in the downstream data path at your headend site. The upconverter is installed between the Cisco uBR7246 and the combiner.

Note The combiner refers to all cables, amplifiers, and taps at the headend or cable distribution center that connect the Cisco uBR7246 to the hybrid fiber coaxial (HFC) network.

—Diplex filters installed in the downstream RF path between the cable modems and the cable modem cards in the Cisco uBR7246. Diplex filters are used to convert the single, bidirectional signals used by cable modems to the two, separate unidirectional signals used by the cable modem cards.

—RG-59 headend coaxial cable with the maximum braid available (60% + 40% braid), double foil, and the correct connector for this cable. The center conductor must be straight and extend 1/8 inch (3.2 mm) beyond the end of the connector and the connector should be securely crimped to the cable.

•Complete a basic configuration of the Cisco uBR7246. This includes, as a minimum, the following tasks:

—Configure a host name and password for the Cisco uBR7246. For more information about how to configure a host name and password, refer to the Cisco uBR7246 Universal Broadband Router Installation and Configuration Guide.

—Configure the Cisco uBR7246 to support IP. For more information about how to configure IP, refer to the refer to the “IP Overview,” “Configuring IP Addressing,” and “Configuring IP Services” chapters in the Network Protocols Configuration Guide, Part 1.

—Install and configure at least one port adapter to provide WAN connectivity. The

Cisco uBR7246 supports the following port adapters: 4-port 10BASE-T Ethernet, 8-port 10BASE-T Ethernet, 100BASE-T Fast Ethernet, ATM, and HSSI.

For information about installing and configuring the 4-port 10BASE-T port adapter, refer to the 4-E Ethernet 10BASE-T Port Adapter Installation and Configuration document.

For information about installing and configuring the 8-port 10BASE-T port adapter, refer to the 8-E Ethernet 10BASE-T Port Adapter Installation and Configuration document.

For information about installing and configuring the 100BASE-T Fast Ethernet port adapter, refer to the 100BASE-T Fast Ethernet Port Adapter Installation and Configuration document.

For information about installing and configuring the ATM port adapter, refer to the ATM Port Adapter Installation and Configuration document.

For information about installing and configuring the HSSI port adapter, refer to the HSSI Port Adapter Installation and Configuration document.

Configuring Cisco uBR7246 Universal Broadband Router Features VC-137

Page 4 Page 6
Image 5
Page 4 Page 6
Contents Page Topology for uBR7246 Universal Broadband Benefits of Cisco uBR7246 Description of Cisco uBR7246 Cable RouterList of Terms Prerequisite Tasks Supported MIBs and RFCs Configure the Downstream Cable InterfaceSet the Downstream Center Frequency Command PurposeTroubleshooting Tips Set the Downstream Symbol RateSet the Downstream Modulation Set the Downstream Mpeg Framing Format Annex a or Annex BSet the Downstream Interleave Depth Activate the Downstream Carrier Step Command PurposeSet the Upstream Frequency Configure the Upstream Cable InterfaceSet the Upstream Input Power Level Activate Upstream Forward Error Correction Activate the Upstream Scrambler Router# more systemrunning-configActivate the Upstream Ports Configure and Activate Baseline Privacy Configure Traffic Encryption Key Privacy Configure Kek Encryption Key PrivacyActivate Baseline Privacy Configure and Activate Frequency AgilityCreate Spectrum Groups Configure and Activate Spectrum Groups Activate IP Address Resolution ProtocolActivate Host-to-Host Communication Proxy ARP Activate Address Resolution Protocol RequestsActivate Proxy ARP Requests Set Optional IP ParametersActivate IP Broadcast Echo Activate IP Multicast EchoManage Cable Modems on the HFC Network Activate Cable Modem AuthenticationActivate Cable Modem Upstream Address Verification Activate Cable Modem Insertion Interval Command TaskEnter the global configuration mode. configure terminal Universal Broadband Features Configuration Example

uBR7246 specifications

The Cisco uBR7246 is a versatile edge router designed primarily for cable operators wishing to deliver high-speed Internet, telephony, and video services over hybrid fiber-coaxial (HFC) networks. This router is part of Cisco's extensive line of broadband access solutions, addressing the increasing demand for bandwidth among consumers and businesses alike.

One of the uBR7246's main features is its ability to support a wide range of broadband technologies including DOCSIS (Data Over Cable Service Interface Specification) and EuroDOCSIS. The router is designed to facilitate the delivery of high-speed data services while allowing for flexible configurations that adapt to evolving network technologies. This is crucial for operators looking to maximize their network efficiency and future-proof their infrastructure.

The uBR7246 is equipped with multiple modular slots, enabling service providers to customize the router according to their specific needs. High-capacity interface cards can be added to support various types of connections, such as Ethernet and TDM (Time Division Multiplexing), thus offering scalability. With support for both DOCSIS 1.0 and advanced versions like DOCSIS 3.0 and 3.1, the router can handle increased data rates and offer maximum efficiency in terms of bandwidth utilization.

Security features are integral to the uBR7246, as it employs advanced measures such as encryption and robust authentication protocols to ensure that subscriber data remains secure. This is particularly vital in an era where cyber threats are pervasive, and customer trust is essential.

In terms of performance, the uBR7246 offers exceptional throughput, capable of efficiently managing vast amounts of traffic without degradation of service. Advanced Quality of Service (QoS) mechanisms help prioritize traffic, ensuring that high-demand applications like video streaming and VoIP receive the necessary bandwidth they require for optimal performance.

The router is also designed with operational ease in mind, offering centralized management capabilities through Cisco's suite of management tools. This allows operators to monitor performance, manage configurations, and troubleshoot issues more efficiently, reducing downtime and enhancing service reliability.

In summary, the Cisco uBR7246 is a powerful and flexible solution that meets the demands of modern broadband delivery. Its advanced technologies, modular design, high-level security features, and robust performance make it an ideal choice for cable operators aiming to provide high-quality services to their subscribers while staying ahead of the competition.
Top Page Image Contents