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Cisco uBR10012 Universal Broadband Router Software Configuration Guide
OL-1520-05
Chapter2 Configuring the Cable Modem Termination System for the First Time
Preparing for Configuration
Preparing for Configuration
Complete these prerequisite steps before you power on and configure the CiscouBR10012router:
•Ensure that your network supports reliable broadband data transmission. Your plant must be swept,
balanced, and certified based on National Television Standards Committee (NTSC) or appropriate
international cable plant recommendations. Ensure your plant meets all Data-over-Cable Service
Interface Specifications (DOCSIS) downstream and upstream radio frequency (RF) requirements.
•Ensure that your CiscouBR10012router is installed according to the instructions in the hardware
installation guide that came with your CMTS.
•Ensure that all other required headend or distribution hub routing and network interface equipment
is installed, configured, and operational (based on the supported services). This includes:
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All routers
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Servers (Dynamic Host Configuration Protocol (DHCP) servers, Trivial File Transfer Protocol
(TFTP) servers, and time-of-day (ToD) servers)
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Network management systems
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Other configuration or billing systems
•Ensure that DHCP and DOCSIS configuration files have been created and pushed to appropriate
servers so that each CM, when initialized, can:
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Transmit a DHCP request
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Receive an IP address
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Obtain TFTP and ToD server addresses
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Download a DOCSIS configuration file (or updated software image if using CiscouBR924
cable access routers or CiscouBR910 cable data service units (DSUs) in your network)
•Ensure that customer premises equipment (CPE)—CMs or set-top boxes (STBs), PCs, telephones,
or facsimile machines—meet requirements for your network and service offerings.
•Be familiar with your channel plan to assign appropriate frequencies. Outline your strategies for
setting up bundling, if applicable to your headend or distribution hub. As appropriate, obtain:
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Passwords
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IP addresses
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Subnet masks
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Device names
After these prerequisites are met, you are ready to configure the CiscouBR10012router. This includes,
at a minimum:
•Configuring a host name and password for the CiscouBR10012router
•Configuring the CMTS to support IP over the cable plant and network backbone
Caution If you plan to use service-class-based provisioning, the service classes must be configured at the
CMTS before CMs attempt to make a connection.