Cisco 7200 VXR - Manual (Page 2)

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Cisco 7200 VXR Installation and Configuration Guide
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Chapter 1 Cisco 7200 VXR Product Overview
Physical Description
The Cisco 7200 VXR routers support the high-speed network processing engine, NPE-G2, and all other
available network processing engines. The NPE-G2 provides high-speed performance with the Motorola
Freescale 7448 1.67-GHz processor and supports three Gigabit Ethernet interfaces with no additional
bandwidth requirements. The NPE-G2 also provides a dedicated Fast Ethernet Management port and two
USB ports for data storage and security tokens.
The Cisco 7200 VXR routers also support high-speed network processing engines (NPEs) to provide
increased routing and process switching performance.
The Cisco 7200 VXR routers with the NPE-G2, NPE-G1, NPE-400, and NSE-1 installed support both
25-MHz and 50-MHz port adapter operation.
Note For port adapter configuration information, refer to the Cisco 7200 Series Port Adapter Hardware
Configuration Guidelines publication.
The Cisco 7200 VXR routers accommodate a variety of network interface port adapters and I/O
controllers. Because both the NPE-G1 and NPE-G2 contain I/O controller functionality, they can be used
without an I/O controller installed. The NPE-G2 and NPE-G1 provide a third PCI bus, which enables the
Port Adapter Jacket Card to be installed in the I/O controller slot to allow usage of an additional
high-bandwidth-usage port adapter.
A Cisco 7200 VXR router equipped with an NSE-1 or NPE-400 can support up to six high-speed port
adapters and can also support higher-speed port adapter interfaces including Gigabit Ethernet and OC-12
ATM. The Cisco 7200 VXR routers also contain bays for up to two AC-input or DC-input power
supplies.
The port adapters, I/O controller, and power supplies are the same for all Cisco 7200 VXR routers and
are described in the
“Field-Replaceable Units” section on page 1-10 . The network processing engines
and network services engine are router model specific.
The Cisco 7200 VXR routers support the following features:
• Online insertion and removal (OIR)—Allows you to add, replace, or remove port adapters without
interrupting the system.
Note The Port Adapter Jacket Card does not support OIR. However, the port adapter installed in
the Port Adapter Jacket Card does support OIR.
• Dual hot-swappable, load-sharing power supplies—Provide system power redundancy; if one power
supply or power source fails, the other power supply maintains system power without interruption.
Also, when one power supply is powered off and removed from the router, the second power supply
immediately takes over the router’s power requirements without interrupting normal operation of the
router.
• Environmental monitoring and reporting functions—Allow you to maintain normal system
operation by resolving adverse environmental conditions prior to loss of operation.
• Downloadable software—Allows you to load new images into flash memory remotely, without
having to physically access the router, for fast, reliable upgrades.