Cisco CRS-1 Multishelf System

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The Cisco Carrier Routing System multishelf system (CRS) offers industry-leading performance, advanced services intelligence, environmentally aware design, and system longevity. The CRS also uses Cisco IOS XR Software, a unique self-healing, and distributed operating system.

  • Consists of 2 to 72, 40-Gbps-per-slot line-card shelves and 1 to 8 fabric shelves for a total switching capacity of up to 92 Tbps
  • Supports in-service upgrade from single-shelf to multishelf configuration with the addition of 1 to 8 fabric shelves
  • Protects investments by using modular services cards (MSCs) and physical layer interface modules (PLIMs) that are fully interchangeable across the entire CRS-1 product family

The Cisco CRS-1 Carrier Routing System marks a new era in carrier IP communications by powering the foundation for network and service convergence today while protecting investments for decades to come.