Cisco 7604-RSP720C-R Bedienungsanleitung PDF herunterladen (Seite 31)

Chapter 1: Routing 1-31

Routing

For More Information

http://www.cisco.com/go/crs

The Cisco XR 12000 and 12000 Series Routers compose a portfolio of

intelligent routing solutions that scale from 2.5 to n x 10Gpbs capacity per

slot, facilitating carrier-class IP/Multiprotocol Label Switching (MPLS)

networks and accelerating the evolution to IP next-generation networks.

Key Features and Benefits

• The Cisco XR 12000 and 12000 Series Routers deliver up to 1.28-

Tbps switching capacity with wire-speed feature performance,

scalability, and graceful hardware and software upgrade paths.

• These routers offer full forward compatibility for all line cards and the

portfolio of shared port adapters (SPAs) and SPA interface processors

(SIPs).

• The routers scale to the edge, supporting backbone- or edge-optimized line cards in the same chassis.

• The routers maximize the value of line-rate edge applications with 10-G uplinks.

• IP quality of service (QoS) and congestion-control implementation facilitates real-time services such as

voice over IP (VoIP) and video. The distributed architecture and class-of-service features of the routers, such

as priority-based congestion control (Weighted Random Early Detection [WRED]) and dedicated Low

Latency Queuing (Modified Deficit Round Robin [MDRR]), along with virtual output queuing (Virtual Output

Queuing [VOQ]), eliminate head-of-line blocking (HOL) and maintain packet sequence integrity under all

conditions.

• Non-service-affecting online insertion and removal (OIR) of components (including switch fabric cards) and

front accessibility reduce downtime and simplify maintenance.

• Cisco Nonstop Forwarding (NSF) and Cisco Stateful Switchover (SSO) eliminate single points of failure, help

maintain system performance, and prevent service interruption; packet forwarding remains uninterrupted

before, during, and after a route-processor switchover.

• Performance Route Processor-3 (PRP-3)—PRP-3 is the premium route processor for the Cisco XR 12000

Series Router. This latest generation of Performance Route Processors (PRPs) vastly expands the

processing power for control plane and management plane applications, providing up to 300% improvement

over PRP-2 performance for such applications. The premium PRP-3 route processor greatly extends the

lifetime of the Cisco XR 12000 Series platform.

• Service Module Daughter Card (SMDC)—The new services card can be plugged on to the PRP-3 route

processor to support a comprehensive suite of CGv6 features, as well as a number of service applications

that help bridge the IPv6 divide and build a bridge to the future of the Internet.

Specifications

CRS-MC-FC2 Cisco CRS-1 Multichassis System with 24-Slot Fabric Chassis

CRS-FC24= Cisco CRS-1 Fabric Chassis 24-Slot System (complete FCC)

CRS-FCC= Cisco CRS-1 FCC, spare (Chassis Only)

CRS3-16/S Cisco CRS-3 16-Slot Carrier Routing System/Single

CRS3-8/S Cisco CRS-3 8-Slot Single-Shelf System

CRS3-4/S Cisco CRS-3 4-Slot Single-Shelf System

CRS3-MC-FC24 Cisco CRS-3 Multichassis System with 24-Slot Fabric Chassis

CRS3-FC24= Cisco CRS-3 Fabric Chassis 24-Slot System (complete FCC)

CRS3-FCC= Cisco CRS-3 FCC, spare (chassis only)

Cisco XR 12000 and 12000 Series Routers

Feature

Cisco XR 12000/

12000 16-slot

Chassis

Cisco XR 12000/

12000 Series 10-

Slot Chassis

Cisco XR 12000/

12000 Series 6-Slot

Chassis

Cisco XR 12000/

12000 Series 4-Slot

Chassis

Slot Capacity

16 slots 10 slots 6 slots 4 slots

Aggregate Switching

Capacity

12016: 80 Gbps;

12416: 320 Gbps;

12816: 1280 Gbps

12010: 50 Gbps;

12410: 200 Gbps;

12810: 800 Gbps

12006: 30 Gbps;

12406: 120 Gbps

12404: 80 Gbps

Full-Duplex Throughput Per

12016: 2.5 Gbps/slot

12416: 10 Gbps/slot

12816: 40 Gbps/slot

12010: 2.5 Gbps/slot

12410: 10 Gbps/slot

12810: 40 Gbps/slot

12006: 2.5 Gbps/slot

12406: 10 Gbps/slot

12404: 10 Gbps/slot

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