Cisco XR 12816 Manuale di installazione - Pagina 20

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Route Processor

Line Cards

Caution

Note

Route Processor

Cisco XR 12416 and Cisco XR 12816 Router Chassis Installation Guide

1-20

Up to 15 Cisco XR 12416 and Cisco XR 12816 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.

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

and Cisco XR 12816 Routers:

Refer to the current s software release notes for the most up-to-date list of

supported line cards (see

Request" section on page

The route processor for the Cisco XR 12416 and Cisco XR 12816 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

•

"Obtaining Documentation and Submitting a Service

-xiv).

Chapter 1

Product Overview

OL-17440-01