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Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
OL-17309-02
Chapter 1 Cisco uBR7225VXR Overview
Hardware Component Descriptions
• Sending and receiving routing protocol updates
• Managing tables, caches, and buffers
• Monitoring interface and environmental status
• Providing Simple Network Management Protocol (SNMP) management and console/Telnet
interface
• Accounting and switching of data traffic
• Booting and reloading images
Refer to Network Processing Engine and Network Services Engine Installation and Configuration, for
specifications, and removal and replacement instructions for these components. View the document
online at the following URL:
http://www.cisco.com/en/US/docs/routers/7200/install_and_upgrade/network_process_engine_install_
config/npense.html
A CPU reset button is located on the NPEs’ faceplate. The CPU reset button resets the entire system.
Caution To prevent system errors and problems, use the CPU reset button only at the direction of your service
representative.
NPE Comparisons
The network processing engines used in the Cisco uBR7225VXR router are the Cisco uBR7200-NPE-G1
and Cisco uBR7200-NPE-G2.
Note The Cisco uBR7200-NPE-G1 should use the boothelper image ubr7200-kboot-mz.122-33.SCA.bin
available from Cisco IOS Release 12.3(33)SCA and later. The Cisco uBR7200-NPE-G2 should use the
boothelper image ubr7200p-boot-mz.122-33.SCA1.bin available from Cisco IOS Release 12.3(33)SCB
and later.
NPE components:
• Reduced instruction set computing (RISC) microprocessor:
–
Cisco uBR7200-NPE-G1 with a 700-MHz Broadcom BCM1250 processor
–
Cisco uBR7200-NPE-G2 with a 1.67-GHz Motorola Freescale MPC7448 processor
• System controller:
–
Cisco uBR7200-NPE-G1 and Cisco uBR7200-NPE-G2 do not require an I/O controller.
• Upgradable memory modules:
–
Cisco uBR7200-NPE-G1—SDRAM: 256 MB (default), 512 MB, and 1 GB. There are two
DRAM memory slots, so 256 MB of memory consists of two 128-MB memory SODIMMs, 512
MB consists of two 256-MB memory SODIMMs, and 1 GB consists of two 512-MB memory
SODIMMs. It is necessary to have the same size SODIMM in each memory bank on an
NPE-G1. The type of DRAM memory being used on the NPE-G1 is double data-rate (DDR)
memory. DDR memory provides high-performance memory access rates.