Cisco Systems Cisco XR 12416 manual Route Processor, Line Cards

Chapter 1 Product Overview

Route Processor

Line Cards

Up to 15 Cisco XR 12416 router line cards can be installed in the routers upper and lower card cages to support a variety of physical network media. Ports and connectors on the line card front panels provide interfaces for external connections. Line cards communicate with the RP and exchange packet data with each other through the switch fabric cards.

Caution Any unoccupied card slot in the upper and lower card cages must have a blank filler panel installed to meet electromagnetic compatibility (EMC) requirements and to ensure proper air flow through the chassis. Also, if the front panel of a line card does not completely fill the card slot opening, a narrow card filler panel must be installed to meet the EMC requirements.

A cable management bracket on the front panel of each line card helps to organize the interface cables connected to that line card.

The following line cards, SIPs, and SPAs are supported on the Cisco XR 12416 router:

Note Refer to the current s software release notes for the most up-to-date list of supported line cards (see “Obtaining Documentation, Obtaining Support, and Security Guidelines” section on page -xiv).

Route Processor

The route processor for the Cisco XR 12416 router is the Performance Route Processor (PRP-2). For detailed information about the PRP-2, refer to the Cisco document, Performance Route Processor Installation and Configuration Guide.

The PRP-2 performs the following primary functions:

•Executes routing protocol stacks

•Performs all protocol communications with other routers

•Builds and distributes forwarding information to all line cards

	Cisco XR 12416 Router Installation Guide
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