Cisco Systems CRS-1 Manual De Usuario
C H A P T E R
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Cisco CRS-1 Carrier Routing System 8-Slot Line Card Chassis Site Planning Guide
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Cisco CRS-1 Carrier Routing System
This site planning guide describes how to plan and prepare your site facilities for the installation of a
Cisco CRS-1 Carrier Routing System 8-Slot Line Card Chassis (also referred to in this document as the
“Cisco CRS-1 8-slot line card chassis”). The guide provides a brief description of the chassis and its
components, and basic site facilities requirements.
Cisco CRS-1 Carrier Routing System 8-Slot Line Card Chassis (also referred to in this document as the
“Cisco CRS-1 8-slot line card chassis”). The guide provides a brief description of the chassis and its
components, and basic site facilities requirements.
This guide describes all power, cooling, and environmental specifications to consider before ordering
and installing the Cisco CRS-1 8-slot line card chassis. This guide also describes site facilities
requirements, such as floor space, weight requirements, receiving and staging, and installation
information to help you plan the site where the routing system will be installed.
and installing the Cisco CRS-1 8-slot line card chassis. This guide also describes site facilities
requirements, such as floor space, weight requirements, receiving and staging, and installation
information to help you plan the site where the routing system will be installed.
Tip
The installation of a CRS-1 8-slot line card chassis may require space, floor loading, power, and cooling
modifications to a facility; therefore, you should plan the site well in advance of the scheduled delivery
of the system.
modifications to a facility; therefore, you should plan the site well in advance of the scheduled delivery
of the system.
The Cisco CRS-1 Carrier Routing System replaces much of the equipment in service provider points of
presence (POPs) today. The routing systems are built around a scalable, distributed three-stage switch
fabric and a variety of line card (packet) interfaces. These packet interfaces are located on modular
services cards (MSCs) and their associated physical layer interface modules (PLIMs), which are
effectively cross-connected to each other through the switch fabric.
presence (POPs) today. The routing systems are built around a scalable, distributed three-stage switch
fabric and a variety of line card (packet) interfaces. These packet interfaces are located on modular
services cards (MSCs) and their associated physical layer interface modules (PLIMs), which are
effectively cross-connected to each other through the switch fabric.
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The Cisco CRS-1 8-slot line card chassis is a half-height, rack-mounted version of the 16-slot
chassis. It is a highly scalable routing system that provides 640 gigabits per second (Gbps) of routing
capacity and supports up to 8 MSCs. The chassis installs in a 19-inch equipment rack.
chassis. It is a highly scalable routing system that provides 640 gigabits per second (Gbps) of routing
capacity and supports up to 8 MSCs. The chassis installs in a 19-inch equipment rack.
The Cisco CRS-1 8-slot line card chassis can be installed in colocation facilities, data centers, and many
Tier II and Tier III locations. The routing system consists of a single rack-mounted chassis that contains
the system components:
Tier II and Tier III locations. The routing system consists of a single rack-mounted chassis that contains
the system components:
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Modular services cards (MSCs), also called line cards (up to eight)
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Physical layer interface modules, or PLIMs (up to eight, one for each MSC)
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Route processor (RP) cards (up to two)
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Switch fabric cards (four required)
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A chassis midplane that connects MSCs to their PLIMs and to switch fabric cards
The Cisco CRS-1 8-slot line card chassis has its own power and cooling subsystems.