思科浙江移动IP城域网交流.ppt

1、浙江移动IP城域网交流,汇报提纲,中国电信IP城域网的演进 浙江移动IP城域网规划建议（草案） 思科7600的演进,IP城域网,中国互联网，大而不强 中国电信是领先者 经过几个阶段的发展 又有新的动向，精品网,IP城域网的变化,流量模型发生变化 浏览网页 - P2P下载 - Online Stream - 高清视频双传 终端类型 从PC机 - 手持终端 媒介类型发生变化 有线 - 无线 互联网 Web 1.0 - Web 2.0，从文字，话音，视频，高清,城域网设计的考虑,用户管理方法的改变 PPPoE？ 有线网络和无线网络的统一协调 流量的深度分析 视频业务的支持和增强能力 内容的建设 可演

2、进的软硬件产品适应这些需求 自身RAN的建设 业务多，考虑QoS能力，注意硬件队列 组播能力，适应视频的能力,Video Apps Approach the Zettabyte EraIncreasingly Bandwidth Intensive and Complex,Video Reaches 87% of Consumer IP in 2012,Consumer Traffic Trend, 2008 Cisco Systems, Inc. All rights reserved.,Cisco Confidential,Presentation_ID,6,Residential HD

3、Video,Bi-Directional Mobile Video,Massive Online Video Storage Libraries,Business HD and 3-D Video,Personalized Event Driven Content,44 Exabytes per month Total Traffic by 2012 2012 annual bandwidth demand reaches 522 Exabytes, or more than half of a Zettabyte,Zetta = 1000 * Exa = 1000,000 * Peta =

4、1000,000,000 * Tera = 1000,000,000,000 * Giga = 1000,000,000,000,000 Mega,Cisco IP NGN Architecture with IPoDWDM: IP over Dense Wave Division Multiplexing,How can network operators achieve the scalability to support the enormous bandwidth demands of the coming years? How can they extend intelligence

5、 throughout the network to deliver innovative services with superior quality? How can they move beyond the static optical networking model of the past to an environment that supports dynamic, end-to-end provisioning of any service, anywhere, any time?,中国电信IP城域网发展和演进,中国电信全业务分析,个人客户,4200万CDMA用户 目标在2-3

6、年内达到1亿用户，市场份额超过15%,品牌,客户,政企客户,家庭客户,客户基础超过1500万 可接触个人客户超过4000万户。,政企客户约700万户 辐射个人客户超过3000万 中高端客户特征明显,发挥其固定、宽带、移动、数据、信息捆绑的优势，提供融合与捆绑业务,移动语音 将以移动数据和多媒体为突破口,业务,目前以宽带上网为主 Triple play为目标 C+W捆绑,IP专线接入 L3/L2 VPN 部分增值服务,网络基础,骨干网： 163 本地网： IP城域网 Best effort流量爆炸增长导致相对收益率下降; 同时对精品业务承载造成困难,以CN2作为IP承载网络（VPN） 建成电路域

7、和分组域core 建成RP network（RAN core） 缺少IP RAN edge（BTS到RNC）,全国范围务承载网：CN2-PE 地市范围承载网：IP城域网 IP城域网作为CN2的延伸作用不尽完善 增值业务单一,中国移动 城域网分析,建设本地精品平面-业务驱动力,政企业务,移动业务,IP RAN，重点满足移动数据业务的发展（EV-DO， LTE）； CDMA+WLAN；,CN2业务延伸 本地L2/L3 VPN DDN、帧中继、ATM业务替代,本地精品平面与现有网络的关系,宽带用户,163,CN2,Mobile,BSC/RNC,BRAS,软交换/TG,AG,传输/ATM/MSTP,本

8、地精品平面 MPLS/IP承载网,IP城域网,PE,CN2 企业客户,现有IP城域网的发展趋势-宽带互联网业务承载,3-play宽带用户,163,IP城域网,BRAS,地域属性：本地网 业务属性：开放业务（internet） 用户属性：residential default services are applied ISG redirects user to portal; user enters his username/password and user credentials are sent to ISG. ISG authenticates user at AAA and retri

9、eves user profile. On authentication success, ISG enables users auto-logon services. User has full access to network. Some time later, user goes to portal and modifies his services. Some time later, user terminates his session from portal,DSL论坛标准 WT-146,IP Session Definition and Requirements IP Sess

10、ion Detection and creation Application of IP Session Policies IP Session Termination The Session Policy decisions follow recognized events and are aimed at accomplishing one or more of the following: Session Authentication, Authorization and Accounting. Session grouping Session Monitoring Change of

11、policies including push, eg Change of Authorization, and pull, eg Radius AAA, methods. IP Flow definition IP Session Lifecycle / Keepalive,IPoE vs. PPPoE(1),固网运营商对宽带用户终结网络的演进考虑,家庭用户,商业用户,PC,现状,BRAS,SR,core router,core router,演进目标：IPoE替代PPPoE,家庭用户,商业用户,STB,PC,第二阶段,BRAS,SR,core router,core router,MSE,

12、MSE：multiservice Edge,为什么是IPoE,3 Play业务的出现 PPPoE对组播支持的天生限制、新增业 务类型对用户认证方式的灵活要求 新的终端出现 新的终端不要求PPPoE客户端软件，比 如：手机、Apple Touch DHCP技术的成熟 地址分配、认证、用户位置标识、终端 设备类型表示 更灵活的用户控制策略需要 父母帐号、个人自服务、差异化服务提供 、流量计费. 标准组织对IPoE的积极推动 DSL论坛WT-146标准,PPPoE到IPoE的平滑迁移,IP城域网的能力需求4：用户业务感知能力 SCE DPI,WiSM/7600 Or Wism/6500,Off-ne

13、t Apps,ISG,GSR,Internet,AP,AP,SCE,Home Gateway,DSLAM,LAN Switch,BB Console,Collection Management,SCE DPI三大应用 应用层业务控制，如：P2P限速 广告定向投放 用户行为分析,基于位置信息的服务提供,当地内容搜索,当地信息菜单提示,当地的广告推送,当地内容服务,用户行为分析及广告定投,运营商可以采用浮动，挂边，或Redirect技术推送广告,一致的收敛能力,1s,1s,1s,1s,L3,1M,100K,10K,50K,Impact,2-3s,VHO Node,L2,2-3s,Source at

14、 SHE,VSO Node,Link in metro,2-3s,50ms,基于RSVP的VoD CAC和组播CAC机制,RSVP,1,3,2,4,IP城域网的能力需求5：Video传送质量保证,支持内容分发系统,Bandwidth Efficiency Video Quality,Bandwidth Efficiency,Video Quality,Video Quality,Multicast Replication Limits,IP城域网的能力需求6实现RAN的IP化传输,IP/MPLS,MGW,Pre Agg,Aggregation,Core Site,Voice,Data,GGSN

15、,SGSN,Microwave,BSC,RNC,N*E1,Access,支持2G TDM接口基站的IP化回传解决方案（CEoP） 支持3G FE IP接口基站的IP化回传解决方案 满足未来LTE演进的IP-RAN回传需求，支持多点到多点的IP连接 支持时钟同步方案：ACR、SyncE和1588v2,IP/MPLS,N*E1/CH-STM1,GE/10GE,FE,Cell-site,IP/MPLS,Cell-site,Cell-site,IP/MPLS,IP/MPLS,End-to-End IP,IP/MPLS,Option1：,Option2：,QinQ+REP,IP/MPLS,Circuit

16、 Emulation over Packet,为什么选择IP技术实现RAN的回传,本质是分组包交换，带宽统计复用，高带宽颗粒度 基站与基站控制器的协议栈IP化 IP地址是位置和寻址的双重标识，动态的控制平面实现寻址自动化，即插即用 基站与基站控制器之间的通信模式IP化 要求自动寻址 要求灵活的通信方式：点到点，多点到多点，点到多点,IP对RAN业务的支持模式,模式1: PWE3 Transport (TDM/ATM Transport over IP),模式2: Layer 2 Transparent Transport (Ethernet Virtual Circuit),模式3: Laye

17、r 3 Relay Transport,IP设备,3G,2G,3G RNC,2G BSC,ATM,ATM,IP,TDM,TDM,IP,点对点PWE3隧道通信 (承载TDM/ATM的UNI),UNI: PWE3,NNI: IP,Iub,Abis,3G,2G,3G RNC,2G BSC,Ethernet,Ethernet,IP,Ethernet,Ethernet,IP,点对点或/与多点对多点以太网隧道通信 (承载Ethernet的UNI),UNI: Ethernet,NNI: IP,Iub,Abis,3G,2G,3G RNC,2G BSC,Ethernet,Ethernet,IP,Ethernet

18、,Ethernet,IP,UNI: IP,NNI: IP,IP路由/交换通信,Iub,Abis,L3RT (三层路由传输),3G,3G RNC-1,3G,3G,IP: 1.1.1.2/24,IP: 8.8.8.1/24,IP: 1.1.1.3/24,IP: 1.1.1.3/24,IP Relay/Routing,3G RNC-2,100Mbps,100Mbps,IP: 8.8.8.2/24,GW: 1.1.1.1/24,IP-NB的载频增加，新的IP-NB或IP-RNC的增加都是相互独立的，和网络之间也是相对独立的 业务系统的调整不需要网络作过多调整，L3RT依靠IP的信令自动搭建起连通性 I

19、P-NB和IP-RNC的IP功能可以简化到最小，将网关功能和路由中继功能都交给网络完成，IP-NB也不需要进行GW修改（对应的IP-RNC地址需要修改） IP地址的规划非常简单，且IP-NB和IP-RNC的地址规划是相互独立的，L2(VLAN)的规划也不需要修改,Vodafone Portugal IEEE1588v2 时钟方案的部署,IEEE1588v2 时钟测试结果,面向全业务承载的IP NGN城域网需求汇总,Aggregation Network MPLS/IP,精品平面 Aggregation,Aggregation Node,Distribution Node,Distributio

20、n Node,Aggregation Node,Core Network IP / MPLS,IP Edge,Multiservice Core,MPLS/IPoDWDM Optical Network,BNG,BNG,Core + E-MSE,Core + E-MSE,RBS,Aggregation Node,Aggregation Node,BSC/RNC,BSC/RNC,以业务发展优先级指导网络建设,Cisco 7600 Overview,Cisco7600在浙江移动IP城域网,2000年，Cisco7600 Vs. NE16/08 2002年， Cisco7600 Vs. NE80/4

21、0 2006年, Cisco 7600 Vs. NE80e/40e 以后，Cisco 7600 Vs. ? 良好的架构设计（软硬件），对互联网趋势的准确判断，IETF多个协议的制定者，大量的用户基础 Cisco7600有GGSN的板卡,Flexible Cisco 7600,Engines Supervisor 32 Supervisor 720 Route Switch Processor 720,Enhanced FlexWAN 7500 Parity and PA Investment Protection,High-Density Ethernet Modules High-Densi

22、ty GE and 10GE with Distributed, Line-rate Performance,High-Density Ethernet Service Modules High-Density GE and 10GE with Rich QoS, Distributed, Line-rate Performance,Services Modules Distributed Security; IPSEC, Firewall, IDS, DoS Protection,SPA Interface Processors Modular Carriers Cards for WAN

23、and Metro Shared Port Adapters,Cisco 7600 SeriesChassis Form Factors,# of Slots Height Bandwidth Performance,4-slot 4 (horizontal) 8.75” (5RU) 320 Gbps Upto 144 Mpps,6-slot 6 (horizontal) 12.25” (7RU) 480 Gbps Upto 240 Mpps,9-slot 9 (vertical) 33.5” (21RU) 720 Gbps Upto 400 Mpps,13-slot 13 (horizont

24、al) 30.15” (19RU) 720 Gbps Upto 400 Mpps,Cisco 7600 Supervisor 720,The Policy Feature Card (PFC) Is a Daughter Card Which Is an ASIC Complex for Hardware-Based Forwarding and Features,Cross Bar / Switch Fabric,The Supervisor, Itself, contains the Baseboard, Backplane Connections, and Sup DRAM/Flash,

25、MSFC3,The Multi-Layer Switch Feature Card (MSFC) Is an Daughter Card Which Is an IOS-Based Routing Engine,GE Ports,RSP720 Component Facts,2x GE Ports 1x SFP only 1x SFP and RJ45,2x Compact Flash Slots,1x Console,Forwarding Plane Daughter-card PFC-3C or PFC-3CXL,Control Plane Daughter-card (MSFC4),72

26、0Gbits Non-blocking Crossbar Switch Fabric,7600 RSP720-10GE,Control Plane Daughter-card (MSFC4),Forwarding Plane Daughter-card PFC-3C or PFC-3CXL,720Gbits Non-blocking Crossbar Switch Fabric,1x Compact Flash Slots,3x GE Ports 1x SFP only 1x SFP and RJ45,2x10 GE Ports,1 x Type and I x type B USB port

27、s (not enabled at FCS),Console,Supervisor 720 Baseboard,DBUS,RBUS,PFC3 DaughterCard,L3/4Engine,NetFlow,ACLTCAM,QoSTCAM,FIBTCAM,ADJ,L2CAM,Counter FPGA(3BXL Only),ProtocolRedirectionLogic,L2 Engine,SUP720 Multicast Architecture Overview,16 GbpsBus,Integrated720 Gbps Switch Fabric,20 Gbps,17 x 20 GbpsF

28、abricChannels,Fabric Interface/ReplicationEngine,CPU Daughter Card,DRAM,RP (NMP)CPU,DRAM,SP (MSFC3)CPU,Port ASIC,1 Gbps,1 Gbps,GbE Uplinks,MET Contains OILs for Replication,MET,高密度 万兆接口,WS-X6704-10GE,WS-X6708-10G-3C,MAC Learning in Hardware Hardware based Multicast Replication Low System Latency Cis

29、co IOS Software and Cisco IOS Software Modularity Support,Built on the Ciscos Industry Leading Architecture,WS-X6716-10G-3C,Comprehensive Optics Portfolio,Service-Rich Ethernet Linecards Two 20 Gbps (full-duplex) linecard options: 2-port 10 Gigabit Ethernet, XFP LAN PHY optics 20-port Gigabit Ethernet, SFP optics Up to 48 Mpps distributed performance per linecard Line rate for 64-byte packets, L2 or L3 Choice of hardware-based scale for L2 & L