Cisco 7246 - uBR Router Налаштування - Сторінка 5
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Prerequisite Tasks
Before you can configure Cisco uBR7246 universal broadband router features, you must first:
•
Note
center that connect the Cisco uBR7246 to the hybrid fiber coaxial (HFC) network.
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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.
The combiner refers to all cables, amplifiers, and taps at the headend or cable distribution
— 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
List of Terms