展望下一代IP网络的发展——CISCO IP NGN.ppt
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1、,1,2005 Cisco Systems,Inc.All rights reserved.,IP NGN,CISCO PUBLIC,展望下一代IP网络的发展Cisco IP NGN,2,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,内容简介IP网络技术发展IP NGN 网络架构Cisco IP NGN产品与技术简介IP NGN 网络应用实例CISCO IP NGN展望,Internet,3,CISCO PUBLIC,IP NGN_2_APR2005,VPNs,Transport,Conten
2、t,Voice&Video 2005 Cisco Systems,Inc.All rights reserved.,Mobility,I2NEnterprise,I2NConsumer,Small Business下一代网络,IP网络的发展进入到下一个时期以服务连接客户,用网络提供服务,将所有客户和服务纳入网络I2N,4,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,IP通信技术进入宽带时期 光通信技术的发展DWDM:一对光纤上的容量从2.5G扩大到超过1T新一代智能光传输平台:融合SDH A
3、DM,Cross-Connect,GMPLS,Ethernet.宽带接入技术的进步ADSL/VDSL/ADSL2光纤到户,以太网到户,EPON宽带无线网络 Ethernet GE,10GE 以太网的广泛应用,带宽的价格迅速下降 Metro-Ethernet 40GE,immediately 100GE,5,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,IP技术的迅猛发展 硬件技术2.5G to 10G in passed two years10G to 40 G in later this y
4、ear40G Network Processor(100Mpps40byte)Support IPv4/IPv6/MPLS at same timeSwitch capacity scale to multiple Tbits 软件技术 分布式微内核的操作系统将整个系统的可靠性从 99.9%提高到99.999%路由算法的进一步优化将网络恢复时间降低到300msfast convergence BGPfast ISIS/OSPF and I-OSPF NSF/SSO:none single packet lost!,6,2005 Cisco Systems,Inc.All rights rese
5、rved.,CISCO PUBLIC,IP NGN_2_APR2005,技术进步带来得困扰:,Resolving These ConflictsRequires a Clean-Slate SystemDesignEverything Must Be Rethought,TechnologyRefresh toIncrease NetworkCapacity2-5 years,TechnologyRefresh toIncrease NetworkCapacity,TechnologyRefresh toIncrease NetworkCapacity2-5 years,Cisco Confi
6、dential,7,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,IP NGN 网络架构,8,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,下一代网络发展需求,SERVICESDIFFERENTIATIONLOYALTYREVENUE,EFFICIENCIESOPEXCAPEXPROFITSIPINTELLIGENCEFLEXIBILITYADAPTABILITY,CONTROLSERVICE
7、NETWORKBUSINESS,NETWORK,CONVERGENCE,IP NGN 网络发展趋势Requires Multiple Layers of Convergence,APPLICATIONCONVERGENCESERVICECONVERGENCE,MOBILEFR/ATMPSTNOPTICALBROADBANDSERVICESHIGH-SPEEDINTERNETIP NGN_2_APR2005,Integration of NewInnovative IP D/V/VServices overBroadband forIncreased RevenueService Continu
8、ityacross Access forCustomer LoyaltyAnd Stickiness,Eliminate Layersin the Network forIncreasedOPEX/CAPEXEfficienciesCISCO PUBLIC 9,IPNext GenerationNetwork 2005 Cisco Systems,Inc.All rights reserved.,IP NGN_2_APR2005,CONSUMER,SMALL/MEDIUMBUSINESS,SPWHOLESALE,ENTERPRISE,VPNs,INTERNET,IPv6,VOICE&VIDEO
9、 2005 Cisco Systems,Inc.All rights reserved.,MOBILITY,TRANSPORTCISCO PUBLIC 10,IP NEXT-GENERATION NETWORK,Cisco 下一代网络平台CONNECTING CUSTOMERS WITH SERVICES,SERVICES WITH NETWORKS,AND NETWORKS WITH EACH OTHER,12,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,Cisco IP NGN 网络技术
10、产品,13,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,Core/EdgeEvolution Blurring Boundaries,VirtualizationService flexibilityScalabilityContinuous operation,ManagementInvestment protectionSecurity,IP/MPLSCore,MetroEthernetVoIP,FirewallVideo,IntelligentEdgeBroadband,FR/ATM/
11、LLOne Network,Many Services,IPv6L2/L3VPN,14,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,Next Generation Core Requirements“Must Have”,Massive Scale,2004,NGN_0401,Single-SystemSimplicity,WITH,WITH,ContinuousAvailability,Service Flexibility,UNPRECEDENTED SERVICE FLEXIBILIT
12、Y WITHOUT DISRUPTION,MASSIVE CAPACITY THAT ACTS AS A SINGLE SYSTEM,WITH,ServicePerformance,Service Intelligence,CAPACITY AND INVESTMENT PROTECTION FOR NEW FEATURES ANDSERVICES WITHOUT PERFORMANCE COMPROMISESMUST RESOLVE THESE INHERENTLYCONFLICTING REQUIREMENTS,Cisco Confidential,15,2005 Cisco System
13、s,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,Investment Protection forDecades to Come,UnparalleledSystemLongevity,3 Stage Benes Fabric Topology Non-blocking,self-routed for multi-shelf system,Stand-alone Shelf,With Switch Fabric72 Line Card Shelves&8 Fabric Shelves,IN-SERVICE EXPANSION O
14、F HARDWARE AND SOFTWAREUp to92Tbps,Cisco Confidential,16,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,System Processes(E.G.BGP,IS-IS,MPLS)canbe distributed to an arbitrary number of RouteProcessors(RP)for maximum efficiency and scale,Innovative Scalable Control Plane:Eli
15、minates Architectural Limitations,2004,NGN_0401,BGPIS-ISRP1,MPLSRP2,MulticastRP3,Resilient SystemProcess Distribution,UnparalleledSystemLongevity,Cisco Confidential,IPv6RPn,S,ysSe,emrvt,ci,se,k,17,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,k,Control Plane,Data Plane,Ma
16、nagement Plane,BGPkk,IS-IS,RIP,OSPF,PIM,IGMP,ACL,PRI,L2Drivers,CLI,XML,Alarm,Netflow,SNMP,SSH,QoS FIB LPTSDistributed Middleware,“Always On”In-Service Software Upgrades,Control,Data and Management plane separation Transparent,fully distributed processing to optimizeresources Granular(process level)i
17、n-service upgrades Processes can be started,stopped and upgraded on active RP,2004,NGN_0401,ContinuousSystemOperation,Cisco Confidential,18,2005 Cisco Systems,Inc.All rights reserved.,IP NGN_2_APR2005,Cisco IP/MPLS Innovation for the CoreGlobal Interprovider NGN Infrastructure(GINI)Advancements Inte
18、r-AS Multicast VPNNew service opportunity for SPs to extend multicastapplications across SP boundaries Inter-AS Traffic EngineeringImproved resiliency(better SLAs)Increased bandwidthBetter core optimization Inter-provider MPLS VPN over IPEnables IP networks to support MPLSL3 VPN services,Increases L
19、3 VPN service footprintUtilizes proven BGP control plane and IP/L2TPv3 dataplane to support VPN operation MPLS VPN Inter-AS/CsC Load BalancingMultiple physical paths between ASBR routersenhances scalability and improves robustness andresiliency at service provider peering points,Industrys First,Most
20、 WidelyDeployed,andMost Feature-RichMPLS Portfolio,CISCO PUBLIC,19,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,IP NGN 中的应用,GigE,Cntrl,20,2005 Cisco Systems,Inc.All rights reserved.,CISCO PUBLIC,IP NGN_2_APR2005,Optimize investments withindustry first asymmetric nxGEvide
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