城域核心網(wǎng)發(fā)展趨勢

城域核心網(wǎng)發(fā)展趨勢

-從以太網(wǎng)城域網(wǎng)到電信級以太網(wǎng)

侯自強(qiáng)題要一、以太網(wǎng)演化和城域以太網(wǎng)論壇二、電信級以太網(wǎng)三、以太網(wǎng)傳輸四、產(chǎn)品、案例五、小結(jié)一、以太網(wǎng)演化和

城域以太網(wǎng)論壇城域以太網(wǎng)快速發(fā)展2004年城域以太網(wǎng)設(shè)備全球銷售額為26億美元，2005年翻一番達(dá)49億美元。預(yù)期2009年可以達(dá)到150億美元。城域以太網(wǎng)快速發(fā)展的原因是簡單、可以快速布設(shè)，帶寬可擴(kuò)展和粒度可變。內(nèi)部開銷低時延比采用3層的系統(tǒng)低低成本：城域以太網(wǎng)以傳統(tǒng)技術(shù)兩倍的代價，提供7－8倍帶寬。廣域以太網(wǎng)比傳統(tǒng)技術(shù)低20－30％。此外路由器接口要便宜很多以太網(wǎng)業(yè)務(wù)預(yù)測區(qū)域市場地區(qū)2008CAGRProbeGroup歐洲$5billion40%Frost&Sullivan亞太$15.4billion31.5%YankeeGroup北美$4.0billion57.0%20042009CAGRInfonetics$2.5Billion$22.2billion54.7%以太網(wǎng)業(yè)務(wù)預(yù)測“以太網(wǎng)業(yè)務(wù)市場的14%是新開拓的而86%將來自傳統(tǒng)業(yè)務(wù)的替代”

VerticalSystemsGroup1973Meltcalfe&Boggs1980DEC,Intel,Xerox"bluebook"1985IEEE802.3Ethernet10MbpsStandard2.94Mbps10Mbps19811995100MbpsIEEEFastEthernetStandardFirstProducts19971GigabitEthernetoverFiberStandard19991GigabitEthernetoverCopperStandard19941997100Mbps10Gbps1Gbps20012001

10GigabitEthernetLAN2001

10GigabitEthernetWANManagement,Higherbandwidth,wireless采用其它技術(shù)發(fā)展以太網(wǎng)業(yè)務(wù)1970s1980s1990s

2000s從LAN擴(kuò)展到MAN以太網(wǎng)發(fā)展過程城域以太網(wǎng)論壇MEF成立于2001年6月目的是加速發(fā)展運(yùn)營商級以太網(wǎng)和業(yè)務(wù)開始工作于城域以太網(wǎng),為企業(yè)用戶提供光城域網(wǎng)接入連接企業(yè)局域網(wǎng)。進(jìn)一步擴(kuò)展到發(fā)展電信級以太網(wǎng)。概念進(jìn)一步推廣到跨國家全球網(wǎng)絡(luò)提供全世界業(yè)務(wù)接入網(wǎng)可以基于光纖、銅線、EPON、無線和有線電視電纜融合商業(yè)樓宇，居民區(qū)、無線接入共享同一基礎(chǔ)設(shè)施，業(yè)務(wù)經(jīng)過統(tǒng)一認(rèn)證，獲取規(guī)模經(jīng)濟(jì)效益。城域以太網(wǎng)網(wǎng)論壇MEF城域以太網(wǎng)業(yè)務(wù)定義城域以太網(wǎng)論壇(MEF)定義兩種以太網(wǎng)業(yè)務(wù)和三種業(yè)務(wù)類別業(yè)務(wù)類型ServiceType業(yè)務(wù)類別ServiceClass關(guān)鍵應(yīng)用E-Line以太網(wǎng)專線業(yè)務(wù)EthernetPrivateLineService存儲,數(shù)據(jù)鏡像,業(yè)務(wù)連續(xù)性以太網(wǎng)虛擬專線業(yè)務(wù)EthernetVirtualPrivateLineService服務(wù)器加固大文件傳送以太網(wǎng)DIAELAN以太網(wǎng)局域網(wǎng)業(yè)務(wù)EthernetLANServiceLAN-LAN,VOIP,遠(yuǎn)程學(xué)習(xí),內(nèi)容分發(fā)城域以太網(wǎng)的應(yīng)用以太網(wǎng)做為業(yè)務(wù)

提供和出售連接商業(yè)市場業(yè)務(wù)EthernetVPNsEthernetPrivateLineEthernetVirtualPrivateLineEthernetVirtualPrivateLAN以太網(wǎng)做為基礎(chǔ)設(shè)施

支持居民區(qū)和商業(yè)Svcs話音、視頻、數(shù)據(jù)三重業(yè)務(wù)互聯(lián)網(wǎng)接入存儲城域集中器DSL集中器無線干線互聯(lián)網(wǎng)接入和IPVPNsProvider

MENVoiceASPDataVideoCECEPoint-to-PointEVCUNIUNIE-LineServicetype二、電信級以太網(wǎng)什么是電信信級以太網(wǎng)網(wǎng)?可擴(kuò)展業(yè)務(wù)和帶寬寬100,000個EVC’’s從Mbpst到x10Gbps保護(hù)50ms保護(hù)護(hù)端到端路路徑保護(hù)護(hù)集中線路路和結(jié)點(diǎn)點(diǎn)保護(hù)服務(wù)質(zhì)量量保證端到到端的SLA端到端的的CIR和和EIR商業(yè)。移移動，居居民區(qū)TDM支支持無縫集成成TDM電路模擬擬業(yè)務(wù)支持現(xiàn)有有話音業(yè)業(yè)務(wù)業(yè)務(wù)管理理快速提供供服務(wù)運(yùn)營商級級OAM能力客戶網(wǎng)絡(luò)絡(luò)管理(CNM)CarrierEthernet電信級以以太網(wǎng):IEEE802.3以以太網(wǎng)網(wǎng)＋5項運(yùn)營營商級特特性電信級以以太網(wǎng)提提供融合合的業(yè)務(wù)務(wù)VideoSource互聯(lián)網(wǎng)話音網(wǎng)關(guān)關(guān)CarrierEthernet話音/視視頻電話HDTVTVoD,VoDVideoSource游戲商業(yè)備份,ERPMobile3G居民區(qū)Triple-Play商業(yè)寬帶帶E-Line,E-LAN,和和TDM業(yè)業(yè)務(wù)FTTx和DSLAM干干線寬帶移動動數(shù)據(jù)/視視頻ATM的的QoS和流量量工程SONET/SDH的的彈性和和管理以太網(wǎng)的的簡單和和經(jīng)濟(jì)性性電信級以以太網(wǎng)可可以支持持兩種核核心網(wǎng)IP/MPLSInternetIMSC/SP2PSIPINON應(yīng)用：話話音VoIP、視頻IPTV應(yīng)用：話話音互互聯(lián)網(wǎng)電電話、視頻互互聯(lián)網(wǎng)電電視、新新媒體企業(yè)、大大客戶、、VIP寬帶消費(fèi)費(fèi)者寬帶業(yè)務(wù)務(wù)應(yīng)用居民區(qū)TriplePlaywithIPTV100’’sofTVchannelsVideoondemandVideorecording/playbackInteractivevideoappsMulti-megabitInternetaccessRemotelearningGaming商業(yè)強(qiáng)化業(yè)務(wù)務(wù)GigabitconnectivitybetweenbusinessesDataCenterConsolidationStorageanddisasterrecoveryGuaranteedratemulti-megabitInternetaccessVideoconferencing&broadcastBusinesstelephony移動無線干線線Wi-FiAccessdeliveryWiMAXinfrastructure3GandbeyondwirelessNextgendataservicesHighresolutionphotoWirelessvideoGamingDigitalTV企業(yè)業(yè)務(wù)務(wù)Inter-LAN,Inter-PABXandSANCustomersiteCustomersiteCustomersiteCarrierEthernetCustomersiteCustomersiteCustomersiteIPVPNNetworkCarrierEthernetCustomersiteCustomersiteCarrierEthernetCustomersiteCustomersiteCustomersiteIPVPNASP,orExtranetCustomersiteCarrierEthernetCustomersiteCustomersiteCustomersiteCarrierEthernetVPLSGroupHighSpeedAccesstoIP-VPNHighSpeedInternetAccessVPLSorVPLS-TEServiceMulti-ServiceAccess加速全球球采用電電信級以以太網(wǎng)和和業(yè)務(wù)以太網(wǎng)業(yè)業(yè)務(wù)的演演化Vorizon1998-20042004-PresentServiceCharacteristicsBestEffortDataCoSCapabilitiesinclude:BestEffort,PriorityDataandRealTimeCommunicationsApplicationsBurstyhighbandwidthdataPrioritydata,VOIP,Conferencing,CallCenter,DistanceLearningSpeedsPrimarily10megabitatBranchOffices100megatHQandDataCenter100megUNIatBranchesGigabitatHQandDataCenterSLA’sOperational(Throughput,MTTR,Uptime)OperationalandPerformanceincludingmetricsfor(latency,jitter)ServiceClassELANonlyCompletePortfolioincluding:ELAN,EVPLandELINEservicesandemergingEthernetAccesstoIPFootprintMetroOnlyMetro,NationalandemergingglobalVerizon以太太網(wǎng)業(yè)務(wù)務(wù)GlobalNationalMetroCOVERAGEGlobalDataLink(USand9EuropeanCountries)EthernetPrivateLineEthernetPrivateLineandDedicatedSONETRingsinover80marketsEthernetPrivateLine––Layer1PrivateIP(metro,national,international)InternetDedicated(metro,national,international)EthernetAccessGlobalVPLScomingin2007NationwideVPLScominginQ42006VZE-LANIn-regionE-LANGlobalDataLink(USand9EuropeanCountries)EthernetVirtualPrivateLineEthernetVirtualPrivateLineinover80marketsEthernetVirtualPrivateLine––Layer2E-LineVerizon’sEthernetProductPortfolioServiceClassServiceType三、以太太網(wǎng)傳輸輸多種傳輸輸技術(shù)EthernetConnectivityServicesIP-basedServicesVOIPInternetIP-VPNIPTVEthernetATMPDHE-LINEE-LANVLANMPLSWDMIP和和Ethernet運(yùn)行行在任何何基礎(chǔ)設(shè)設(shè)施上20%30%50%SONETL3EthernetWDMMPLSRPRTechnologyforEthernetServicesSource:HeavyReading50+%的的以太網(wǎng)網(wǎng)業(yè)務(wù)利利用SONET~30%的以以太網(wǎng)業(yè)業(yè)務(wù)利用用DWDMMPLS,RPR也也被使使用DSLPONRPRSONET/SDH傳輸MACinMACConnectivityServicesSeparation以太網(wǎng)傳輸輸功能和工工具集中復(fù)用保護(hù)距離故障部分化化端到端QoS以太網(wǎng)SONET/SDHC/DWDM彈性分組環(huán)環(huán)RPRxSTPMPLS快快速選路路PWE3ProviderBridgingMAC包包封ECombinations實(shí)現(xiàn)工具包包物理層包封附件保護(hù)附件功能ScalabilityReliabilityHardQoSTDM

SupportServiceManagementCarrierEthernetAdd/DropcircuitsNosupportfor

packetservicesDistributedDXCMappingofPacketservicestocircuitsLimitedStatisticalmultiplexingOptimizedforpacketmultiplexingMappingofcircuitsoverpacketsTraditionalsynchronization以太網(wǎng)傳輸輸技術(shù)演化化SONETPHYTDMFabricADMSTS-1VT1.5SONETPHYTDMFabricMSPPSTS-1VT1.5PacketServicesSONETPHYNextGeneration

FabricPacketTransportVT1.5STS-1PacketServicesTDMTDM+PacketPacket+TDMSDHAccessRing第一步:升級現(xiàn)有網(wǎng)網(wǎng)絡(luò)重新使用SDH的電信級特特征全-IP網(wǎng)的演化路路徑SDHMetroRingSDHRegional/BackboneRingFTTXDSLMSPPmicroMSPPDWDMNetworkMSTPIP/MPLSIP/MPLSGFPMapper/FramerVCAT/LCASTraditionalSDH/SONETSwitchMatrixEthernet/MPLSSwitch在現(xiàn)有SONET/SDH設(shè)備中引入以太太網(wǎng)線路卡卡Ethernet/RPRRing多地區(qū),多技術(shù)盡量利用現(xiàn)現(xiàn)有網(wǎng)絡(luò)SDHAccessRingSDHMetroRingSDHRegional/BackboneRingFTTXDSLMSPPmicroMSPPDWDMNetworkMSTPIP/MPLSIP/MPLSCarrierEthernetSwitchFTTXDSL地區(qū)1(租借接入)地區(qū)2(自有網(wǎng)絡(luò))E-LAN提供三重業(yè)務(wù)E-LINE提供商業(yè)連連接以太網(wǎng)傳輸輸?shù)慕?jīng)濟(jì)動動力充分利用對對SONET/SDH網(wǎng)絡(luò)的大量量投資大約$2000億在現(xiàn)有的SDH網(wǎng)上上快速引入入能夠創(chuàng)收收的以太網(wǎng)網(wǎng)業(yè)務(wù)在現(xiàn)有的設(shè)設(shè)備上提供供引入以太太網(wǎng)接口卡卡，逐步地地加入以太太網(wǎng)功能新一代SONET/SDH提供向全I(xiàn)P網(wǎng)演化的路路徑平滑演化網(wǎng)網(wǎng)絡(luò)支持?jǐn)?shù)數(shù)據(jù)流連接接固有的局局域網(wǎng)接口口低初始投資資可擴(kuò)展四、產(chǎn)品和和案例CISCO的IPTV方方案DSL(WT-101)RedbackSmartedge方案邊緣路由器器以太網(wǎng)集中中器客戶管理哈爾濱IPTVJuniperM系列邊邊緣路由器器全面的VPN業(yè)務(wù)同時運(yùn)行第第2層虛擬擬電路、第第2層VPN、第第2.5層層互通VPN、第3層2547VPN、VPLS、IPSec、IPoverIP和和GRE等等;擴(kuò)展性高，，可支持成成千上萬的的VPN低時延、低低抖動性能能的細(xì)粒度度QoS，，可支持話話音、視頻頻及其他實(shí)實(shí)時應(yīng)用逐DLCI、VP、、VC、VLAN、、信道(DS0)和和逐端口口QoS分類、速率率限制、整整形、加權(quán)權(quán)循環(huán)調(diào)度度、嚴(yán)格優(yōu)優(yōu)先級調(diào)度度、加權(quán)隨隨機(jī)早期檢檢測、隨機(jī)機(jī)早期檢測測和數(shù)據(jù)包包標(biāo)記將第2層QoS(802.1p、CLP、DE)映射到到第3層QoS(IPDSCP、、MPLSEXP)基于硬件的的IPv6性能、IPv6overMPLS、IPv6overIPv4GRE隧道以以及IPv6/IPv4雙堆堆棧功能。。強(qiáng)勁的組播播支持，包包括：IGMPv1/v2/v