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Cisco Carrier Routing System

Model Descriptions of the Carrier Routing Systems

Learn about the models within the Carrier Router Systems.

CRS-1 4-Slot Singleshelf System

Cisco CRS-1 4-Slot Single-Shelf System

This system consists of a single, 4-slot line-card shelf with total switching capacity of 320 Gbps.


CRS-1 8-Slot Singleshelf System

Cisco CRS-1 8-Slot Single-Shelf System

This system consists of a single, 8-slot line-card shelf with total switching capacity of 640 Gbps. The line-card shelf is built from an 8-slot line-card chassis featuring a midplane design.


CRS-1 16-Slot Singleshelf System

Cisco CRS-1 16-Slot Single-Shelf System

This system consists of a single, 16-slot line-card shelf with total switching capacity of 1.2 Tbps. The line-card shelf is built from a 16-slot line-card chassis featuring a midplane design.


CRS-1 Multishelf System

Cisco CRS-1 Multishelf System

This system consists of 2 to 72 line-card shelves and 1 to 8 fabric shelves with a total switching capacity of up to 92 Tbps. The line-card shelves are connected only to the fabric-card shelves where Stage 2 of the three-stage switching is performed. Read more about the switching stages in the CRS-1 brochure.