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5-2
Network Processing Engine and Network Services Engine Installation and Configuration
OL-4448-12
Chapter 5 NPE-G1 Overview
NPE-G1 Description and Overview
NPE-G1 Description and Overview
This section contains information about the NPE-G1 components and the system management functions.
The NPE-G1 is the first net
processing engine for the Cisco 7200 VXR routers and Cisco uBR7200 series routers to provide the
functionality of both a network processing engine and I/O controller. If used without an I/O controller,
an I/O controller blank panel must be in place.
While its design provides I/O controller functionality, it can also work with any I/O controller supported
in the Cisco 7200 VXR routers and Cisco
uBR7200 series routers. The NPE-G1, when installed with an
I/O controller, provides the bootflash and NVRAM that the Cisco
IOS software uses to boot.
Note An I/O controller can be used with the NPE-G1, but an I/O controller is not necessary for system
functionality. Installing an I/O controller in a chassis with the NPE-G1 activates the console and
auxiliary ports on the I/O controller and automatically disables the console and auxiliary ports on the
NPE-G1. However, you can still use the CompactFlash Disk slots and Ethernet ports on both the NPE-G1
and I/O controller when both cards are installed.
The NPE-G1 maintains and executes the system management functions for the Cisco 7200 VXR routers
and Cisco
uBR7200 series routers and also holds the system memory and environmental monitoring
functions.
The NPE-G1 consists of one board with multiple interfaces. It can be used only in the Cisco 7200 VXR
routers and Cisco
uBR7200 series routers.
Note The Cisco 7200 VXR routers and Cisco uBR7200 series routers use different models of the NPE-G1
processor. For the Cisco
7200 VXR routers , order the NPE-G1 or NPE-G1= product. For the
Cisco
uBR7200 series router, order the UBR7200-NPE-G1 or UBR7200-NPE-G1= product. The two
models of NPE-G1 have different labels and use different boot helper images, and they cannot be
interchanged between the Cisco 7200 VXR routers and Cisco uBR7200 series routers.
Bandwidth
The NPE-G1 uses no bandwidth points, and when used with any I/O controller, the I/O controller also
uses no bandwidth points. None of the Gigabit Ethernet interfaces on the NPE-G1 use bandwidth points.