Cisco Many Services. One Network. Limitless Possibilities. Cisco CRS-1 Carrier Routing System Foundation for Network and Service Convergence

The Cisco® CRS-1 Carrier Routing System is the industry’s only fully modular and distributed routing system that enables service Service providers recognize that service-specific networks, complex network architectures, and connectivity-only services do providers to deliver a suite of data, voice, and video services over a highly available and highly scalable IP Next-Generation Network not adequately meet their business needs and customer demands. To increase efficiency and profitability, service providers must (NGN) infrastructure. The Cisco CRS-1 is designed to help service providers increase business profitability, service flexibility, and redesign their networks to cut costs, offer new services, and expand their customer reach. operational efficiency. The primary attributes of the Cisco CRS-1 include: To meet this challenge, service providers are embarking on a migration toward a converged IP NGN that is based on network convergence enabled by an IP/Multiprotocol Label Switching (MPLS) core that supports the integration of IP and DWDM, and service Unparalleled System Longevity convergence driven by IP-centric services (Figure 2). The expected traffic growth from converged networks and new IP services will The Cisco CRS-1 is the industry’s only carrier routing system that can scale up to 92 terabits per second (Tbps), powering the first require service providers to rearchitect their network point of presence (POP) even more rapidly than the current interval of 3 to 5 OC-768c/STM-256c IP and dense wavelength-division multiplexing (DWDM) interfaces and supporting up to 1152 40-Gbps line years. The level of network complexity increases exponentially as more and more routers are inserted into traditional POP architec- cards of Packet-over-SONET (PoS), WDM, and Ethernet interfaces. The Cisco CRS-1 helps simplify today’s networks while protecting tures to handle respective POP functions such as core, peering, aggregation, and edge. Simplifying POP architecture while delivering investments for decades to come. network and service convergence becomes a technical, operational, and business challenge to service providers (Figure 3).

Continuous System Operation The Cisco CRS-1 is the only massively scalable system that can truly integrate multiple POP functions into a single system and The Cisco CRS-1 is built on Cisco IOS® XR Software, the industry’s only self-healing for multishelf, multiterabit provide the critical reliability and flexibility required for successful network and service convergence. The Cisco CRS-1 simplifies carrier infrastructure. This -based operating system provides granular process independence, fault containment, and POP architecture and management, freeing service isolation. With these unique capabilities, the Cisco CRS-1 can be maintained, upgraded, enhanced, and scaled without requiring providers from current network design limitations Figure 2. Migration Toward an IP NGN Infrastructure service interruptions. to capture the benefits of a single, reliable, scalable routing system not only today, but for decades to Unprecedented Service Flexibility with Cisco Intelligent ServiceFlex Design come. The Cisco CRS-1 offers integrated DWDM IP Next- Generation The Cisco CRS-1 combines the Cisco Silicon Packet Processor (SPP)—the world’s most sophisticated 40-Gbps application-specific transponder functions at both 40 Gbps and 10 Gbps. Network SMB integrated circuit (ASIC), and Cisco IOS XR Software, with unique Cisco Service Separation Architecture (SSA) and Cisco Service- The 40-Gbps WDMPOS module connects directly Enterprise ATM Frame Intelligent Switch Fabric to provide maximum service flexibility and capability. With comprehensive service separation and complete into any DWDM network and provides up to 40 Gbps line-rate feature flexibility, the Cisco CRS-1 can deliver the capabilities that enable the most advanced converged network services of data throughput across existing 10-Gbps DWDM Internet Video today and tomorrow. systems, while the 10 Gigabit Ethernet WDMPHY Voice CISCO IP VPN module provides compatibility with existing SONET/ CRS-1 System Overview SDH operations support systems. The result is sig- The Cisco CRS-1 includes two major elements—line card shelves and fabric card shelves. Based on these two system building nificant savings in both capital expenditures (CapEx) blocks, the Cisco CRS-1 can be deployed in two configurations: a single-shelf system and a multishelf system (Figure 1). and operating expenses (OpEx), an overall increase Home in reliability and improved speed to service. Carrier- A single-shelf system is built from a single line card chassis, available in 4, 8, or 16 slots. The single-shelf system delivers 320 Gbps, to-Carrier Mobile 640 Gbps, or 1.2 Tbps of switching capacity and 4, 8, or 16 available 40-Gbps line card slots. The multishelf system is built by interconnecting multiple line card shelves using one or more fabric shelves. Multishelf systems can scale up to 92 Tbps, and grow to as many as 72 line card shelves interconnected by eight fabric shelves. Both single-shelf and multishelf systems deliver a true unified Cisco CRS-1 Simplifies POP Architecture character to its operator and peers. Figure 3. POP Consolidation Traditional POP Design Cisco CRS-1 and IPoDWDM Figure 1. Cisco CRS-1 System Configurations

Optical Transponders Transponders Optical WAN

Single-Shelf Configuration Multishelf Configuration Core (320 Gbps, 640 Gbps, or 1.2 Tbps) (1.2 Tbps to 92 Tbps)

• 4, 8, or 16 line card slots • 2 to 72 line card shelves Peer Peer • No fabric card shelf • 1 to 8 fabric card shelves Peering Peer Peer required

Distribution

Access/ Aggregation Business Residential

Business Residential Business Residential Residential Cisco CRS-1 System Elements Cisco CRS-1 System Elements

Cisco CRS-1 Main Components Cisco CRS-1 Fabric Card Shelf • Cisco CRS-1 4-Slot Single-Shelf System Cisco CRS-1 Fabric Card Chassis • Cisco CRS-1 8-Slot Single-Shelf System • Backplane design • Cisco CRS-1 16-Slot Single-Shelf System • 24 slots for up to 24 stage 2 fabric cards • Cisco CRS-1 24-Slot Fabric Card Chassis • 2 dedicated slots for shelf controller • Redundant power supplies and fan trays

Cisco CRS-1 4-Slot Cisco CRS-1 16-Slot Single-Shelf System Single-Shelf System Cisco CRS-1 4-Slot Line Card Chassis Cisco CRS-1 16-Slot Line Card Chassis • Four 40-Gbps line card slots—Using a • Sixteen 40-Gbps line card slots—Using a midplane design midplane design, the 16-slot LCC is loaded • 2 dedicated route-processor slots with 16 MSCs on the back of the chassis, • 4 dedicated switch fabric card slots in each of which is connected, through the the rear (which accommodate 4 switch midplane, to an interface module on the front Cisco CRS-1 System Configurations fabric cards with two switch planes of the chassis. Single-Shelf System Configuration on each) • 2 dedicated route-processor slots • Single 4-, 8-, or 16-slot line card shelf • Redundant power supplies and fans • 8 dedicated switch fabric card slots • Integrated switch-fabric card—no fabric card shelf required • 2 dedicated shelf-controller slots • Switching capacity: 320 Gbps, 640 Gbps, or 1.2 Tbps • Redundant power supplies and fan trays • Supports 4, 8, or 16 40-Gbps line cards – 4, 8, or 16 OC-768c/STM-256 PoS ports – 16, 32, or 64 OC-192c/STM-64c PoS/Dynamic Packet Transport (DPT) ports – 32, 64, or 128 10 Gigabit Ethernet ports – 64, 128, or 256 OC-48c/STM-16c PoS/DPT ports – 4, 8, or 16 OC-768c/STM-256 tunable WDMPOS ports Cisco CRS-1 8-Slot – 16, 32, or 64 10 Gigabit Ethernet tunable WDMPHY ports Single-Shelf Cisco CRS-1 8-Slot Line Card Chassis Multishelf System Configuration • Eight 40-Gbps line card slots—Using (CRS-1 16 slot only) a midplane design, the 8-slot LCC is • 2 to 72 line card shelves loaded with 8 MSCs on the back of the • 1 to 8 fabric card shelves chassis, each of which is connected, • Switching capacity: Up to 92 Tbps through the midplane, to an interface • Support for up to 1152 40-Gbps line cards module on the front of the chassis. – 1152 OC-768c/STM-256 PoS ports • 2 dedicated route-processor slots – 4608 OC-192c/STM-64c PoS/DPT ports • 4 dedicated switch fabric card slots – 9216 10 Gigabit Ethernet ports (which accommodate 4 switch fabric – 18,432 OC-48c/STM-16c PoS/DPT ports cards with two switch planes on each) – 1152 OC-768c/STM-256 tunable WDMPOS ports • Redundant power supplies and fan trays – 4608 10 Gigabit Ethernet tunable WDMPHY ports

Cisco CRS-1 4-Port Cisco CRS-1 16-Port Cisco CRS 16-Slot Cisco CRS-1 Modular Cisco CRS-4/8-Slot Cisco CRS-1 1-Port Cisco CRS-1 4-Port Cisco CRS-1 1-Port Services Card Line-Card Chassis OC-768c/STM-256c Tunable 10 Gigabit Ethernet Tunable OC-192c/STM-64c POS OC-48c/STM-16c POS Line-Card Chassis OC-768c/STM-256c Interface Module Interface Module Performance Route Processor Performance Route WDMPOS Interface Module WDMPHY Interface Module POS Interface Module Processor

shelf in a multishelf configuration. multishelf a in shelf

support any processes and line cards on any line card card line any on cards line and processes any support

both single and multiprocessor systems. multiprocessor and single both

Both the Cisco CRS-1 Route Processors and DRPs can can DRPs and Processors Route CRS-1 Cisco the Both

operate identically—and with identical efficiency—in efficiency—in identical with identically—and operate

or a designated Cisco CRS-1 DRP in case of failure. failure. of case in DRP CRS-1 Cisco designated a or

mechanisms ensure that interprocess communications communications interprocess that ensure mechanisms

performed by a Hot-Standby Router Protocol (HSRP) (HSRP) Protocol Router Hot-Standby a by performed

programming interfaces (APIs) and message-passing message-passing and (APIs) interfaces programming

Cisco CRS-1 Route Processor or CRS-1 DRP can be be can DRP CRS-1 or Processor Route CRS-1 Cisco

performance. A highly structured set of application application of set structured highly A performance.

dancy scheme whereby the function of each active active each of function the whereby scheme dancy

efficient resource usage and maximum control-plane control-plane maximum and usage resource efficient

- redun N:M an support DRPs CRS-1 and Processors

forwarding-, and management-plane processes for for processes management-plane and forwarding-,

multiprocessing configuration. The Cisco CRS-1 Route Route CRS-1 Cisco The configuration. multiprocessing

r Processo r Processo Processor architecture allows for the distribution of control-, control-, of distribution the for allows architecture

central processing unit (CPU) clusters in a symmetrical symmetrical a in clusters (CPU) unit processing central

ing a system-level restart. This microkernel-based microkernel-based This restart. system-level a ing e Rout Route Route

using two dual PowerPC symmetrical multiprocessing multiprocessing symmetrical PowerPC dual two using

- requir without processes these of upgrad¬ing or

the processing power of traditional route processors, processors, route traditional of power processing the

drivers and file systems, and it facilitates restarting restarting facilitates it and systems, file and drivers

as needed. The Cisco CRS-1 DRP provides double double provides DRP CRS-1 Cisco The needed. as

software failures in ancillary processes such as device device as such processes ancillary in failures software

by scaling the control plane or adding new services services new adding or plane control the scaling by

level. This architecture minimizes the effect of any any of effect the minimizes architecture This level.

and help avoid memory or processing bottlenecks bottlenecks processing or memory avoid help and

ing, and thread distribution are done at the kernel kernel the at done are distribution thread and ing,

(DRP) can be placed in any available line card slot, slot, card line available any in placed be can (DRP)

- schedul process management, memory passing,

A unique Cisco CRS-1 Distributed Route Processor Processor Route Distributed CRS-1 Cisco unique A

only essential processing elements such as message message as such elements processing essential only

protected, microkernel-based software architecture, architecture, software microkernel-based protected,

solid state drive on PRP for storing software images. software storing for PRP on drive state solid

Because Cisco CRS-1 Software is built on a memory- a on built is Software CRS-1 Cisco Because

on PRP plus a 40-GB hard drive on RP-B or 2x32-GB 2x32-GB or RP-B on drive hard 40-GB a plus PRP on

random-access memory (DRAM) on RP-B and 6/12GB 6/12GB and RP-B on (DRAM) memory random-access

Cisco IOS XR Software XR IOS Cisco

troller functions and supports up to 4 GB of dynamic dynamic of GB 4 to up supports and functions troller

- shelf-con manages Processor Route CRS Cisco Each

(BGP), MPLS, system management, and accounting. accounting. and management, system MPLS, (BGP),

Line Card Line

Intermediate System (IS-IS), Border Gateway Protocol Protocol Gateway Border (IS-IS), System Intermediate

system capacity. capacity. system trol-plane features such as Intermediate System-to- Intermediate as such features trol-plane

CRS-1 can be scaled from 320 Gbps to 92 Tbps of of Tbps 92 to Gbps 320 from scaled be can CRS-1 - con execute to available is Processor Route Chassis

Because of this modular fabric architecture, the Cisco Cisco the architecture, fabric modular this of Because

Each active Cisco CRS-1 4-, 8-, or 16-Slot Line Card Card Line 16-Slot or 8-, 4-, CRS-1 Cisco active Each

S2 S1 S3

CRS-1 to scale from 1 to 72 line card shelves. shelves. card line 72 to 1 from scale to CRS-1 Route Processors Route

the S2 stage of the Benes topology, allowing the Cisco Cisco the allowing topology, Benes the of stage S2 the

from one to eight fabric shelves are required to provide provide to required are shelves fabric eight to one from

S3 S2 S1 three stages, S1, S2, and S3. In multishelf configurations, configurations, multishelf In S3. and S2, S1, stages, three

In a single-shelf configuration, the fabric cards contain all all contain cards fabric the configuration, single-shelf a In

total of 16,000 queues. queues. 16,000 of total

with three-level hierarchical queuing with a a with queuing hierarchical three-level with

subinterface(s). subinterface(s).

Line Card Line cation, policing, and shaping, and it is equipped equipped is it and shaping, and policing, cation,

for delivery to the appropriate interface(s) and and interface(s) appropriate the to delivery for

- classifi (QoS), service of quality including ing,

Stage 3 (S3) 3 Stage is connected to the egress line card card line egress the to connected is •

- process packet all for responsible is card The

cards associated with the egress line card shelf. shelf. card line egress the with associated cards ingress and one for egress packet processing. processing. packet egress for one and ingress

high-performance, flexible Cisco SPPs, one for for one SPPs, Cisco flexible high-performance, delivers the cells to the appropriate stage 3 fabric fabric 3 stage appropriate the to cells the delivers

Each Cisco CRS-1 MSC is equipped with two two with equipped is MSC CRS-1 Cisco Each Stage 2 (S2) 2 Stage supports multicast replication, and and replication, multicast supports •

high-performance Layer 3 forwarding engine. engine. forwarding 3 Layer high-performance

and delivers the cells across all stage 2 fabric cards. cards. fabric 2 stage all across cells the delivers and

The Cisco CRS-1 Modular Services Card is a a is Card Services Modular CRS-1 Cisco The

Switch Fabric Switch

Stage 1 (S1) 1 Stage is connected to the ingress line card, card, line ingress the to connected is • Modular Services Card Services Modular

Multi-Stage

The three stages of switching follow: switching of stages three The

SPP

tunable WDMPHY. WDMPHY. tunable Cisco

multicast traffic and control-plane messages. messages. control-plane and traffic multicast WDMPOS, and 4-port 10 Gigabit Ethernet Ethernet Gigabit 10 4-port and WDMPOS,

fabric, and has separate priority queues for unicast and and unicast for queues priority separate has and fabric,

Ethernet, 1-port OC-768c/STM- 256c tunable tunable 256c OC-768c/STM- 1-port Ethernet,

Mid Plane

percent speedup and multicast replication in the switch switch the in replication multicast and speedup percent OC-48c/STM-16c PoS, 8-port 10 Gigabit Gigabit 10 8-port PoS, OC-48c/STM-16c

sequenced packets. The Cisco CRS-1 performs 250- performs CRS-1 Cisco The packets. sequenced PoS, 4-port OC- 192c/STM-64c PoS, 16-port 16-port PoS, 192c/STM-64c OC- 4-port PoS,

reassemble cells in the proper order to form properly properly form to order proper the in cells reassemble CRS-1 include: 1-port OC-768c/STM- 256c 256c OC-768c/STM- 1-port include: CRS-1

of new features, services, and applications. and services, features, new of

their destination slots where the Cisco CRS-1 MSCs MSCs CRS-1 Cisco the where slots destination their

and 2 functions. Interface modules for the Cisco Cisco the for modules Interface functions. 2 and

SPP

ease of introducing new code significantly accelerates time-to-market delivery delivery time-to-market accelerates significantly code new introducing of ease

stages—S1, S2, and S3—dynamically route cells to to cells route S3—dynamically and S2, stages—S1,

connections to the network, including Layer 1 1 Layer including network, the to connections

Cisco

eliminating the need to have specific engines for core versus edge routing. The The routing. edge versus core for engines specific have to need the eliminating

dis¬tributed. Within the planes, the three fabric fabric three the planes, the Within dis¬tributed. The interface module provides the physical physical the provides module interface The

core, edge, and peer routing, based on software code, onto the same hardware, hardware, same the onto code, software on based routing, peer and edge, core,

which the packets—broken into cells—are evenly evenly cells—are into packets—broken the which Interface Module Interface

e Modul

The flexibility of the Cisco SPP facilitates the loading of different features for for features different of loading the facilitates SPP Cisco the of flexibility The

Cisco CRS-1 fabric is divided into eight planes over over planes eight into divided is fabric CRS-1 Cisco

Modular Services Card Card Services Modular

Interface

discrete task) per chip, helping enable fully flexible, 40-Gbps processing power. power. processing 40-Gbps flexible, fully enable helping chip, per task) discrete

redundancy between fabric planes. Physically, the the Physically, planes. fabric between redundancy scalability and performance. performance. and scalability

32-bit RISC processors (each of which can work independently to perform a a perform to independently work can which of (each processors RISC 32-bit

1296 buffering, nonblocking switching, and 1:N fabric fabric 1:N and switching, nonblocking buffering, 1296 ing information databases, enabling maximum maximum enabling databases, information ing

The Cisco SPP—the most sophisticated ASIC available today, consists of 188 188 of consists today, available ASIC sophisticated most SPP—the Cisco The

Benes architecture (a first for IP routers) with 1296 x x 1296 with routers) IP for first (a architecture Benes - forward and table adjacency the of copy distinct

Line Card Line

path between line cards is a three-stage, self-routed self-routed three-stage, a is cards line between path

the MSC. Each Cisco CRS-1 line card maintains a a maintains card line CRS-1 Cisco Each MSC. the

Cisco Silicon Packet Processor Packet Silicon Cisco

The switch fabric that provides the communications communications the provides that fabric switch The two main components: the interface module and and module interface the components: main two

Each line card is separated by a midplane into into midplane a by separated is card line Each

availability, and service flexibility. service and availability,

Switch Fabric Switch

The Cisco CRS-1 architecture is the basis of its unparalleled scalability, scalability, unparalleled its of basis the is architecture CRS-1 Cisco The

Line Cards Line bps G 40

Service-Intelligent

System Architecture Overview Architecture System Cisco CRS-1 System Architecture Architecture System CRS-1 Cisco Cisco IOS XR Software Architecture Cisco CRS-1 System Attributes

Operating System for Multishelf Carrier Infrastructure Figure 6. Creation of SDRs on Cisco CRS-1 Unparalleled System Longevity Cisco IOS XR Software, the operating system of the Cisco CRS-1, is the only fully modular, fully distributed internetwork operating The Cisco CRS-1 scales from a single-shelf to a multishelf Line Card system that uses a memory-protected, microkernel-based architecture and control-plane distribution that allows the system to scale Interface Modular Services Card system without requiring service disruption, enabling service Module from 320 Gbps to 92 Tbps. The microkernel includes only the most essential services of the operating system such as message Cisco providers to plan, design, trial, and deploy services over SPP passing, memory management, process scheduling, and thread distribution. All other elements that are part of the kernel in traditional a single system for decades to come. The Cisco CRS-1 Mid Plane operating systems, such as device drivers, file systems, network drivers, and system management are implemented outside the kernel Cisco SPP completely separates control, data, and management planes, (Figure 4). allowing the system to uniquely scale with the following

S1 S2 S3 capabilities: Figure 4. Cisco IOS XR Software Architecture Line Card

Interface Modular Services Card • Control Plane Module S1 S2 S3 Cisco BGP SPP Individual system processes can be placed on specific Speaker route processors or be given an “affinity” between a range Mid Plane

Cisco Route Selection Control Data Management SPP of route processing resources in the system. DRPs can Process Manager Plane Plane Plane be added to any available line card slot in the system—

Router Router providing nearly infinite control-plane scalability. Both the Processor Processor BGP IS-IS RIP QoS FIB LPTS CLI XML Alarm route processors and DRPs can support any processes and line cards on any line card shelf in a multishelf Logical Logical Router Router configuration. Distributed OS Infrastructure • Data Plane L2 Net- With support for up to 1152 OC-768c/STM-256c, 4608 OC- OSPF PIM IGMP ACL PRI SNMP SSH Drivers Flow 192c/STM-64c, and 18,432 OC-48c/STM-16c interfaces, and 9216 10 Gigabit Ethernet, 1152 OC-768c/STM-256c tunable WDMPOS, and 4608 10 Gigabit Ethernet WDMPHY This modern operating system architecture design is the basis upon which Cisco IOS XR Software can offer unprecedented availability ports, only the Cisco CRS-1 can scale up to 92 Tbps in nondisruptive upgrades. and scalability as well as complete separation of the data, control, and management planes. Every operating system function runs in its • Management Plane own protected memory space and is divided into processes that can be distributed to any available processing resource on any shelf The Cisco CRS-1 management database provides native management of the system through either command-line interface (CLI) or in the system to eliminate processing bottlenecks and to ensure that no potential hardware failure adversely affects system operation. Extensible Markup Language (XML)-based interfaces. The XML-based Craft Works Interface (CWI) is a visual management tool that Cisco IOS XR processes can be stopped, started, or restarted dynamically, either automatically in response to a failure or by the system can transparently manage single-shelf or multishelf systems. operator. This granular modularity ensures that only the required processes are restarted upon process failure or during software upgrades, enabling in-service software upgrades (ISSUs). Continuous System Operation Incorporating 20 years of ® networking experience in hardware and software innovations, the Cisco CRS-1 delivers Figure 5. Cisco IOS XR Software Packaging Architecture continuous system operation. Building upon this reliable foundation, providers can offer services over a self-healing network that is designed for continuous availability. System components, including service cards, route processors, controller cards, power units, MPLS Multicast and fans, are fully redundant. Built with Cisco IOS XR Software, the Cisco CRS-1 can be maintained, upgraded, enhanced, and scaled The ISSUs are further simplified through the use of a modular software-dis- without requiring service interruption. tribution mechanism that bundles similar or dependent components together • Self-healing software RPI BGP so they can be upgraded as a set. If necessary, individual processes can be Cisco IOS XR Software acts in a self-healing manner to first contain any fault or system error and then uses automated process upgraded or patched to apply critical fixes or new features (Figure 5). This OSPF LPTS recovery features to safely restart and restore full process operation. capability allows service providers to add new features or fix software defects without having to requalify a completely new operating system version. • ISSUs and enhancements Routing Composite Cisco IOS XR Software has been architected to be highly modular in order to take maximum advantage of distributed hardware Manageability To allow even further flexibility, Cisco IOS XR Software can segment the Cisco platforms such as the Cisco CRS-1. This modularity allows not only for the distribution of individual software processes within a CRS-1 into completely distinct secure domain routers (SDRs), each with its own Security system, but also for the modular application of software updates. Operators can upgrade distinct software subsystems such as the interfaces, processors, management interfaces, and control-plane processes routing or MPLS subsystems, upgrade distinct processes such as BGP or Protocol Independent Multicast (PIM), or apply patches to Forwarding (Figure 6), allowing service providers to provide complete separation of system individual processes to fix software defects. This capability for granular upgrades not only minimizes or eliminates any disruption and routing resources to support the total isolation of customers, administrative Base to services, but also allows operators to test and qualify only new software elements instead of entire software releases, greatly domains, or services. reducing the operational burden and expense associated with system maintenance.

Host Composite Admin • Self-defending system OS The self-defending nature of the Cisco CRS-1 system allows it to automatically recognize distributed-denial-of-service (DDoS) attacks and prevent system overload even while under attack. With an embedded event manager and secure audit trails, the Cisco Line card CRS-1 can proactively monitor and defend against attacks, while providing tools to trace network security violations. Cisco CRS-1 System Attributes System Specifications

Chassis Fabric Card Chassis • In-service scaling 16-Slot Single-Shelf System Design, Slots and Capacity • Midplane design Design, Slots, and Capacity The Cisco CRS-1 system can be scaled, while in service, from 640 Gbps to 92 Tbps of switching capacity with the addition of line • Switch Fabric Card: 24 slots • Midplane design • Shelf Controller: 2 dedicated slots card shelves that are interconnected with switch-fabric shelves—all without requiring service interruptions. • Line Card: 16 x 40 Gbps slots • Switch Fabric Card: 8 dedicated slots Dimensions • System operation and management • Route Processor: 2 dedicated slots • Without cable management and front cover—(H x W x D) • Fan Controller: 2 dedicated slots The Cisco CRS-1 provides an enhanced CLI and Routing Policy Language (RPL); offline configuration development and error 84 x 23.6 x 35 in (213.36 x 59.94 x 88.9 cm) • With cable management and front cover—(HxWxD) checking as well as customizable configuration rollback; automated, proactive system monitoring; and role-based management. Dimensions 84 x 23.6 x 41 in (213.36 x 59.94 x 104.2 cm) • (H x W x D) 84 x 23.6 x 36 in (213.36 x 59.94 x 91.44 cm) • With cable management and front cover—(H x W x D) Weight 84 x 23.6 x 39.71 in (213.36 x 59.94 x 100.84 cm) • 644 lbs (292 kg) as shipped, chassis only with fan trays installed Cisco Intelligent ServiceFlex Design • 712.8 lbs (323 kg) chassis only as shipped, including power shelves, Weight without power modules Using the Cisco Intelligent ServiceFlex design, the Cisco CRS-1 is the leading routing system that allows service providers to reap • 939 lbs (425 kg) as shipped, chassis only with build in rack and fan • 1559 lbs (707 kg) chassis fully configured the benefits of service-specific networks while taking full advantage of the comprehensive service flexibility and scale of IP/MPLS trays installed • 1008 lbs (457 kg) chassis only as shipped, including power shelves, Power networks. With the Cisco CRS-1, carriers can be true to their business strategies without increasing CapEx or OpEx. without power modules, and with build in rack • Maximum DC = 8.8kW @ 31,050 BTU/hr • 1595 lbs (723 kg) chassis fully configured, using all card slots, power • Maximum AC = 10.4kW @ 32,668 BTU/hr The Cisco Intelligent ServiceFlex design includes: shelves, cosmetics, and with build in rack

• Cisco Service Separation Architecture Power Memory • Maximum DC power needed when chassis is fully configured with Modular Services Card The Cisco Service Separation Architecture (SSA) uses hardware and Cisco IOS XR designs of the Cisco CRS-1 to provide total line cards with traffic running: 9.63kW • 2 GB of default route memory separation of traffic and network operations on a per-service or per-customer basis. This unique implementation allows carriers • Chassis power supply maximum DC output : 13.2kW • 1 GB of packet buffer memory per side (2 GB total per line card [ingress and egress]) to isolate the control, data, and management planes along with associated line cards and route processors to create SDRs that 8-Slot Single-Shelf System operate independently from the rest of the system. The Cisco SSA gives carriers the flexibility to test, deploy, and implement a Design, Slots, and Capacity Performance Route Processor • Midplane design • 6 or 12 GB of ECC DDR3 route memory comprehensive offering of converged services with the confidence that they can meet customer service-level agreements (SLAs). • Line card: Eight 40-Gbps slots • Two 32-GB Solid State Drive (SSD) • Switch-fabric card: 4 dedicated slots • Speed-to-service elements • Route processor: 2 dedicated slots Route Processor Rev. B The pairing of the 40-Gbps Cisco SPP, the world’s most sophisticated ASIC, with Cisco IOS XR Software provides unprecedented • Fan tray: 2 fan trays • 4 GB of route memory • One 2/4GB PCMCIA Flash & One 40-GB Hard Drive service capabilities that speed service delivery to customers. Each Cisco SPP combines 188 32-bit RISC processors onto a single, Dimensions fully programmable chip. Cisco SPP implements massively parallel processing on the chip for flexible service delivery with virtually • (H x W x D) 38.5 x 17.5 x 36.6 in (97.79 x 44.45 x 92.964 cm) with base cosmetics Features and Functions no compromise in performance. The highly modular software of the Cisco CRS-1 accelerates service delivery with individual • With cable management and front cover—(H x W x D) IP Features packaging of feature sets to reduce qualification and test time. 38.5 x 17.5 x 40.5 in (97.79 x 44.45 x 102.87 cm) • Control-plane packet handling • IPv4 • Service-intelligent switch fabric Weight • IPv6 • 330.8 lb (148.86 kg) chassis with fan, PDU and blanks (as shipped) • (X)ACLs The Cisco CRS-1 boasts a three-stage switch fabric, based on a Benes architecture, enhanced for packet-based networking. This • 650lb (292.5 kg) chassis as shipped, including power shelves, and all • QoS/class of service (CoS) using Modular QoS CLI (MQC) service-intelligent switch fabric is unique because it enhances a traditional three-stage Benes architecture with native multicast line cards and route processors • IP packet classification and marking • Queuing (both ingress and egress) replication and integrated priority queues. With native multicast replication, service providers can efficiently scale to deliver one Power • Policing (both ingress and egress) service to a large number of customers (such as video broadcast) without affecting system or network performance. Additionally, • Maximum DC power needed when chassis is fully configured with • Diagnostic and network management support line cards with traffic running: 4834W the switch fabric incorporates traffic speedup, which increases the flow of traffic 250 percent to prevent system congestion in the • Chassis power supply maximum DC output : 7.7kW Routing Features Cisco CRS-1. • Multiprotocol BGP Version 4 (MP-BGPv4) 4-Slot Single-Shelf System • Open Shortest Path First Version 2 (OSPFv2) Design, Slots and Capacity • OSPFv3 • Midplane design • IS-IS • Line card: Four 40-Gbps slots • Static routes Operationally Efficient Management • Switch fabric card: 4 dedicated slots • RPL The Cisco CRS-1 has been engineered from its inception with management efficiency as a primary design goal Emphasis was • Route processor: 2 dedicated slots • Multicast • Fans: 4 fans, 1 fan tray • MPLS placed on providing a single-router view, even in large, multishelf installations. The CWI takes full advantage of the XML interface • High availability on the Cisco CRS-1 to provide a standalone, multishelf router management tool. The CWI provides intuitive GUI-based configuration Dimensions • Security • (H x W x D) 30 x 17.643 x 30.28 in (76.2 x 44.813 x 76.91 cm) without • Manageability and alarm management tools, along with a full-screen configuration text editor. In addition, Cisco IOS XR Software uses an element doors and cosmetics management system (EMS). IP-over-DWDM Features Weight • GFEC: standard G.975 Reed-Salomon algorithm The EMS is a set of management elements that help enable a self-monitoring, self-healing • 260 lb (117.93 kg) chassis with fan, power modules and blanks (as shipped) · EFEC: standard G.975.1 two orthogonally concatenated BCH super • 380 lb (172.37 kg) chassis as shipped, including power shelf, fabric FEC code network and provide a consistent interface and consistent functions regardless of the cards, and all line cards and route processors • Full C-band tunable laser with 50-GHz spacing access method—a CLI, XML, or Simple Network Management Protocol (SNMP). Based on • Router-to-router SONET/SDH-like operations, administration, Power ­maintenance, and provisioning (OAM&P) Cisco Transport Manager, the EMS uses the same management system as Cisco optical • AC input = 4700VA @ 16000 BTU/HR systems, enabling network managers to deploy the same EMS for both optical transport • DC input = 4750W @16200 BTU/HR Note: For a full listing of features and functions, refer to Cisco CRS-1 data sheets at http://www.cisco.com/go/crs. and IP/MPLS routing. Cisco Network Lifecycle and Support Services Cisco offers services that address the entire network lifecycle to assist in planning, design, implementation, operation, and optimization of the Cisco CRS-1 Carrier Routing System deployments. These service offerings include: • Advanced services teams, using methodology and templates based on previous Cisco CRS-1 deployments, deliver and deploy the system in service ­provider environments. • Technology support services are available for Cisco CRS-1 replacement, warranty, and spares for next-business-day or onsite hardware replacement support. • Specially trained Cisco Technical Assistance Center (TAC) engineers provide global 24-hour support on the Cisco CRS-1 with practical experience on the ­support and features of the product. Americas Headquarters Asia Pacific Headquarters Europe Headquarters Cisco Systems, Inc. Cisco Systems (USA) Pte. Ltd. Cisco Systems International BV Amsterdam, San Jose, CA Singapore The Netherlands

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