© 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 1

CRS-1 MultichassisOverview

Enrique Silva

© 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 2

IP PoP Evolution

1990s 1992s 1995s 1998-99 2000-02 2003-future1990s 1992s 1995s 1990s 1992s 1995s 19981998--99 200099 2000--0202 20032003--futurefuture

SharedFDDI Ring

FDDISwitchXX XX

POS

EthernetATM

POSPOS

POS

GSRGSRGSRGSR

Cisco 75XX

Cisco 75XX

Cisco 75XX

Cisco 75XX

Cisco 75XX

Cisco 75XX

Cisco 75XX

Cisco 75XX

Cisco 75XX

Cisco 75XXDPT

C7200 C12000 CRS-16 G/s1 G/s 10G/s 320G/s 1 T/s 4 T/s 92 T/s

Historically, scaling a POP is always a challenge

POP consolidation leads to converged core, peering, and edge functions

High Availability is one of the keys to PoP consolidation

CRS-1 Multi-chassis provides a long lasting system that scales without forklift upgrades

© 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 3

CRS-1 Product Family

Common Hardware and Software across CRS-1 product family

Modular mid-plane design – improved sparing efficiencyShared Port Adaptors for cross product family investment protection

CRS-1 Forwarding Engine Card

CRS-1 Interface Module

CRS-1 SPA Interface

Port Adaptor

320 Gbps 640 Gbps 1.2 Tbps 1.2 Tbps to 92 Tbps

© 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 4

Cisco CRS-1 Line Card OverviewPacket Flow Summary

MODULAR SERVICES CARD PLIM

MID

PLA

NE

MID

PLA

NE

CPUSquidGW

OC192Framer and Optics

OC192Framer and Optics

OC192Framer and Optics

OC192Framer and Optics

OC192Framer and Optics

OC192Framer and Optics

OC192Framer and Optics

OC192Framer and Optics

Egress Packet FlowFrom Fabric

Interface Module ASIC

RX SPPL3 EngineRX SPP

L3 EngineIngressQueuingIngressQueuing

TX SPP L3 EngineTX SPP

L3 EngineFrom Fabric ASIC

From Fabric ASIC

EgressQueuingEgress

Queuing

4

1

8

765

23

© 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 5

IP NGN Network Convergence

Device consolidationLess interconnecting interfacesSimple control plane management (Routing)Secure Domain Router (SDR) to partition logically the system in functional areas

High Availability In Service SW UpgradeNo pkt loss (NSF)No Routing Disruption (NSR)Process RestartRP SwitchoverHitless SW and HW upgrades and migration

Service B

Service A

Peering

Core

Peer Peer

BusinessResidential

TransponderTransponder

Peer Peer

ResidentialBusiness

Optical WANIP/MPLSCore

Services Edge

Distri-bution

Peering

Optical

Today’s Architecture Architecture with SDRs

Access

© 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 6

Ottawa R&D Centre - CRBU HW / SW Development and Testing

CRS-1 HW CRS-1 SW

1xOC768 (40 Gps) ASIC drivers

Forwarding SW FIB (CEF)

ASIC Forwarding Engine Micro Code

VPN & MPLS technologies test

IP and Forwarding test

Scalability and Performance test

1xOC768 (40 Gps) DWDM

4xOC192 (10 Gps)

4x10GE DWDM

8x10GE VPLS

Route Processor for 8 slot chassis

GMPLS

IOS-XR common Software (PI)

MPLS LDP

MPLS TE (and FRR)

MPLS L3VPN

6PE / 6VPE

© 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 7

Cisco CRS-1 ScaleBuilt to Last

100m

Up to 72 Line Card Chassis can be

interconnected for 92T capacity

Fabric priority is maintained across multi-shelf system

Up to 8 Fabric Chassis can be interconnected

without requiring forklift upgrades

Fabric can be upgraded without service disruption

Note: CRS-1/8 multichassis support on roadmap

© 2006 Cisco Systems, Inc. All rights reserved. Cisco ConfidentialPresentation_ID 8