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Cisco uBR905 Router Hardware Installation Guide
OL-0598-01 (9/2000)
Chapter 1
Product Overview
Overview of the Cisco uBR905 Cable Access Router
Features
This section provides an overview of the Cisco uBR905 cable access router’s features, divided into the
following categories:
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Basic Features
The Cisco uBR905 cable access router provides the following features:
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DOCSIS-compliant cable modem that delivers peak data rates of 44 Mbps downstream and 10
Mbps upstream for an always-on connection
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Support for 6-MHz downstream and 200K-3200 KHz upstream cable channel bandwidth
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Comprehensive power-up and CMTS-initiated diagnostic features
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Continuous downstream and upstream channel performance and impairment information gathering
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IP bridging and IP routing using Cisco IOS software
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Other feature sets, such as IPsec encryption or firewall protection, are optionally available,
depending on the Cisco IOS image being used
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Support for an unlimited number of PC and other CPE devices in routing mode (subject to the limits
imposed by the service provider)
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Four-port 10Base T Ethernet hub interface
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Coaxial cable (F-connector) interface
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Support for unicast, broadcast, and multicast IP packets
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Automatic configuration and piracy control provided by:
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Automatically downloading a DOCSIS configuration file from the headend to configure itself
for operation on the cable network
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Running resident Cisco IOS image or optionally downloading a new Cisco IOS image as
directed by the CMTS
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Optionally downloading a Cisco IOS configuration file to configure advanced feature sets
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Support for remote software upgrades without requiring a visit by a cable technician
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Security on the cable interface is provided by the DOCSIS Baseline Privacy Interface (BPI):
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40-bit or 56-bit DES encryption
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Automatically established when enabled and supported by both the router and CMTS
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Encrypts all Ethernet packets transported on the cable interface between the router and CMTS
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Optional end-to-end security provided by IPsec encryption:
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IPsec hardware accelerator provides high-performance encryption without affecting overall
throughput
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Provides the capability to create secure virtual private networks (VPNs) across unprotected
networks such as the Internet
