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Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
OL-2239-05
Chapter1 Overview of Cisco uBR7200 Series Software
Cisco IOS Releases and Images for the Cisco uBR7200 Series
The image subset legend for Table1-2 is as follows:
• i = IP routing, MPLS-VPN support, and non-cable interface bridging, including Network Address
Translation (NAT)
• k8 = DOCSIS Baseline Privacy
• p = IP routing with Intermediate System-to-Intermediate System (IS-IS) and Border Gateway
Protocol (BGP); MPLS-VPN support; no bridging and no NAT
• s = “Plus” features: NAT and Inter-Switch Link (ISL)
• k9 = 3DES level of encryption
Note All images support all of the hardware listed in the “Supported Hardware on the CiscouBR7200
Series” section on page1-11, unless otherwise indicated.
Note A Cisco uBR7200 series router requires 256 MB of DRAM memory on the NPE processor card when
HCCP redundancy is configured and the router is supporting more than 3,000 cable modems. Using
less memory in these conditions results in temporary out-of-memory situations and incomplete
synchronization between the Working and Protect interfaces.
12.2 CX Images and Requirements
The 12.2 CX releases are based on Cisco IOS Release 12.2(15)BC1, which is a child of Cisco IOS
Release12.2(15)T. The 12.2 BC train is an interim release train that provides DOCSIS 1.1 two-way
support, along with fixes for software caveats and support for selected new features.
The latest image in the 12.2 CX release train, Cisco IOS Release 12.2(15)CX1, provides two different boot
images for the Cisco uBR7200 series routers:
• ubr7200-kboot-mz.122-15.CX.bin
The "kboot" version of the boot image is a new version of the boot image software that can run only
on the Cisco uBR7200-NPE-G1 processor and the UBR7200-I/O-2FE/E I/O controller, because it
is too large to load on the other I/O controllers. This image contains support for almost all supported
port adapters, allowing the Cisco uBR7246VXR router to boot over almost any type of WAN
interface.
• ubr7200-boot-mz.122-15.CX.bin
The "boot" version of the boot image is small enough to be loaded on I/O controllers with 4MB of
Flash memory, but it supports only Ethernet, FastEthernet, Gigabit Ethernet, OC POS, and a limited
number of ATM port adapters. If you are using a serial port adapter or most ATM port adapters, you
will not be able to boot over the WAN interface.
This difference in boot images affects only the ability of the Cisco uBR7246VXR router to boot over the
WAN interface. When the router has successfully loaded the Cisco IOS software, it has connectivity
over all of the port adapters that this particular version of Cisco IOS software supports.
Table1-3 displays the memory recommendations of the Cisco IOS feature sets for the Cisco uBR7200
series universal broadband routers for Cisco IOS Release 12.2(15)CX1. Cisco uBR7200 series routers
are only available with a 48 MB or 128 MB of Flash disk memory on the I/O Controller cards. The
UBR7200-NPE-G1 uses only compact Flash disk.