Installation guide

1-3
Cisco uBR7100 Series Universal Broadband Router Software Configuration Guide
OL-2238-03
Chapter 1 Overview
Cisco uBR7100 Series Configuration Tools
Table 1-2 displays the memory recommendations of the Cisco IOS feature sets for the Cisco uBR7100
series universal broadband routers for Cisco IOS Release 12.1(20)EC2. Cisco uBR7100 series universal
broadband routers are available with a 16-MB or 20-MB Type II PCMCIA Flash memory card.
The image subset legend for Table 3 is as follows:
• i = IP routing, MPLS-VPN support, and noncable interface bridging, including Network Address
Translation (NAT)
• k1 = DOCSIS Baseline Privacy and MPLS-VPN support
• p = IP routing with Intermediate System-to-Intermediate System (IS-IS) and Border Gateway
Protocol (BGP); MPLS-VPN support; no NAT
• s = "Plus" features: NAT and Inter-Switch Link (ISL)
• t = Telco-Return
Note All images support all of the hardware listed in the Cisco uBR7100 Series Release Notes available on
Cisco.com, unless otherwise indicated:
http://www.cisco.com/univercd/cc/td/doc/product/cable/ubr7100/ub7100rn/index.htm
Cisco uBR7100 Series Configuration Tools
Cisco Network Registrar (CNR)
Cisco provides the Cisco Network Registrar (CNR) with each Cisco uBR7100 series router. CNR
dramatically improves the reliability of naming and addressing services for enterprise and service
provider networks. CNR provides scalable DNS and DHCP services and forms the basis of a DOCSIS
cable modem provisioning system.
CNR is a configuration tool that automates dynamic IP address allocation to cable interfaces, PCs, and
other devices on the broadband network. CNR allows you to track serial numbers and MAC addresses
for each cable interface on your network, and reduces customer service involvement when tracking
subscriber CPE equipment.
For additional information about using CNR, refer to the latest CNR documentation at Cisco.com.
Table 1-2 Memory Recommendations for the Cisco uBR7100 Series Routers, Cisco IOS Release 12.1(20)EC2 Feature Sets
Feature Set Software Image
Recommended
Flash Memory
Recommended
DRAM
Memory
Runs From
Two-Way Data/VoIP Images
DOCSIS Two-Way with BPI ubr7100-k1p-mz 16 MB Flash 128 MB DRAM RAM
DOCSIS Two-Way IP Plus with BPI ubr7100-ik1s-mz 16 MB Flash 128 MB DRAM RAM
DOCSIS Telco-Return IP Plus with BPI ubr7100-ik1st-mz 16 MB Flash 128 MB DRAM RAM
Boot Image
UBR7100 Boot Image ubr7100-boot-mz None None —