诺基亚IP多媒体子系统解决方案

CompanyConfidential诺基亚IP多媒体子系统解决方案产品(IPMultimediaSubsystem)袁昊2006年8月CompanyConfidentialNokiaIMS产品•NokiaIPMultimediaRegister(IMR)：存储IMS用户有关信息•NokiaConnectionProcessingServer(CPS)：处理IMS有关的呼叫连接、用户注册、鉴权与计费•NokiaMSCServer(MSS)包含两个功能：通过NokiaVoIPServer(NVS)支持IMS域的GSM补充业务，通过GatewayControlServer(GCS)支持MGCF实现IMS与其他网络的互通CPSIMRSIP/ISCP-CSCFI-CSCFS-CSCFUMSSLFMGWNVSGCSMGCFGSMSSCompanyConfidentialNokiaIMS结构mrfc?HSS控制平面用户平面PSTNMSCGGSNInternet3GMSC2GSGSN3GSGSNGSM/WCDMASDH/PDH/DWDMQoS-awareIPbackboneHLR业务平面应用服务器MRFPSGWMGWSIP/ISCCPSIMRP-CSCFI-CSCFS-CSCFBGCFPDFUMSSLFGCS/MSSMRFCMGCFNVSShCompanyConfidentialFlexiServer-电信级刀片服务器介绍•开放式体系•底层平台由标准的第三方组件构成,例如Linus操作系统,基于Intel处理器架构的服务器平台•冗余、运营商级可靠性(机柜高5英尺9英寸)•占地面积小•在标准19“机架中容纳大量CPU单元•电信级产品周期方案•保护投资.当新软/硬件技术成熟时，可方便地实现升级CompanyConfidential诺基亚FlexiServer结构FlexiServerPlatformHighAvailabilityServicesDirectoryServiceSoftwareManagementHardwareManagementCarrier-GradeLinuxNetworkElementApplications(PoC,CPS,IMR,SMLC,ISN,NSM)AlarmMgmtPerformanceMgmtLicenseMgmtSecurityLogsMgmtInterfaces(NWI3,SNMPtraps)O&MPlatformMessagingServicesLoggingServicesNamingServiceDatabases(Disk,Memory,Fast)AccessControl(Authentication,Authorization)UtilitiesPlatformServicesDIAMETER&LBCOPS&LBSIGTRAN&LBSIPLBIPServicesIPSecSCTP(LB=LoadBalancer)NetworkProtocolsBasePlatformClusterofBladeServersStateMachineFwrkJ2EEPlatformJ2SEPlatformEJBCluster*(RMI)WebCluster**(HTTP)ApplicationFrameworksAPIsHardwareCompanyConfidentialUnix98/Posix业界普遍采用的HAAPI(SA论坛)硬件(=松耦合计算机网络)CPUCPUCPUCPUCPUEthernetLinux支持HA功能:•冗余支持(激活/后备/负荷分担)•故障管理(系统恢复)•软/硬件升级•etc..诺基亚平台拓展部分电信平台功能:•信令协议栈处理•HA功能控制层框架和操作维护功能•告警管理•性能管理•配置管理•数据库/目录管理•Java/Corba支持高可靠性功能模块(HA)诺基亚基于领先硬件供应商提供业界标准组件设计的服务器群组(ServerCluster)IMR特殊软件功能分布式开放源代码实现最大限度的开放性和硬件独立性IMR应用程序(UMS,SLF)FlexiServerSW(e.g.IMR)CompanyConfidential诺基亚FlexiServer硬件介绍•可安装在标准机架中(600x600x2000mm)•一个标准机架可放置4个子框•每个子框可以支持14块插板，包括•标准总线•内置的LAN交换机•统一的处理板•存储单元•处理板•双IntelPentium4Xeon处理器•最高支持4G内存•专用的IP处理板•进行负载均担与IPSec终结CompanyConfidential硬件插板•CPU板•包含两个1.6GHzIA-32low-voltageXeonarchitecturePentiumIV处理器，支持4G内存•硬盘板•最大支持147G硬盘•交换与接口板•提供2个FC-AL接口（fibrechannelarbitratedloop用于连接存储设备）•提供两个千兆以太网接口用于数据连接•提供一个100M接口用于本地接入CPU板硬盘板交换与接口板CompanyConfidential内部连接•中央两个插槽用于交换与接口板，其他12个插槽用于CPU或者硬盘板•交换与接口板和硬盘板之间通过冗余备份的FC-AL接口（1.0625Gbps）传输数据•CPU板之间通过备份的100MIP总线交换数据•通过IMPI（智能平台管理接口）进行设备管理CompanyConfidentialNokiaCPS产品介绍CompanyConfidential连接控制服务器CPS•基于诺基亚FlexiServer平台，集成P/I/S-CSCF和BGCF的功能。•基于标准的SIP协议的IP多媒体任务控制。•集中化的登录，鉴权以及业务控制功能。•通用的计费系统。•具体实现符合3GPPIMS规范的SIP服务器功能实体;•充当SIP客户端(移动和PC客户端)的服务器端寄存器;•支持终端到终端的安全SIP连接;•提供SIP业务的计费0102030405060708091011121314Chassis1(TSC)IPD-0-ACLMHD-0SWSE0SWSE1DNS-0CPI1+GIPMCHDF1-BSWSE-ASWSE-ACPI1O&MIPD-1-ACPI1+GIPMCCLMCPI1CLA-0CPI10102030405060708091011121314Chassis2(TSC)SWSE0SWSE1SWSE-ASWSE-ASDN-0CPI1CPI1+GIPMCCPI1+GIPMCCLA-1CPI1IPD-0-BO&MIPD-1-BCLMHD-1HDF1-B-SDB8CNF-0CPI1-SDB8-SDB8-SDB8-SDB8Switch0Switch1Switch2Switch3WAS-0CPI1WAS-1CPI1SDNHD-0HDF1-BDNS-1CPI1SDN-0CPI1CNF-1CPI1SDNHD-1HDF1-B(DESG-0)(DESG-1)0102030405060708091011121314Chassis3(TSC)SSNHDSWSE0SWSE1SSNHDF1-BSWSE-ASWSE-ACPI1SSNCPI1SSNCPI1Switch4Switch5SSNHDHDF1-BSSNCPI1SSNCPI1SSNCPI1SSNCPI1SSNCPI1SSNCPI1SSNCPI10102030405060708091011121314Chassis4(TSC)SSNHDSWSE0SWSE1SSNHDF1-BSWSE-ASWSE-ACPI1SSNCPI1SSNCPI1Switch6Switch7SSNHDHDF1-BSSNCPI1SSNCPI1SSNCPI1SSNCPI1SSNCPI1SSNCPI1SSNCPI1(CPS20_cab1_conf)最大配置包括：33块CPU板8块交换板8块硬盘板2块可选的CPU板用于独立的O&M连接CompanyConfidential诺基亚CPS功能介绍NEO&MStatisticscollectionMeasurementsSubs.TraceChargingOffLineOnLineMw(SIP)interfaceCx&Dx(Diameter)interfacesISC(SIP)interfaceGo(COPS)InterfaceRf(GTP’/Diameter)interfaceRo(Diameter)interfaceNMS/OSS(NWI3)interfaceSPD=ServingProfileDatabasePDF=PolicyDecisionFunctionLI=LawfulInterceptionPerformanceMgmtFaultMgmtConf.MgmtGm(SIP)interfaceMm(SIP)interfaceMi,Mj&Mg(SIP)interfacesDNSENUMConnectionProcessingEngine(CPE)LI(LIP)interfaceP-CSCFI-CSCFS-CSCFISCPDFSPDSPDBGCFCompanyConfidentialConnectionProcessingServer(CPS)3GPP&3GPP2接口NWI3:NetworkManagementSysteminterface(XML)CompanyConfidentialCPS软件结构IPSecIPSecurityPfkeyProtocolFamilykeyDIADiameterGTP’GPRSTunnellingProtocolSPDSubscriberProfileDatabaseCxCx-Interfacein3GPPChargingChargingapplicationISCIMSServiceControl(interface)SDNSPDDistributorNodeSSNSignallingandServiceNodeCLMClusterManagerNodeCLAClusterAssistantNodeIPDIPDirectorNodeWASWebApplicationServerCFNCentralizedFunctionsNodeDNSDNSNodeStatStatistics(PStat=Protocolstatistics)SCSessionControlSIPSIPProtocol(interface)CPEConnectionProcessingEngineSDNDNSIPSecIPDSPDDistributorDomainNameServerCxChargingSPDCPSarchitectureStatCPEISCPStatLoadBalancingNWI3GTP’DIASIPSCPfkeyDNSPfkeyDiaGTP’SIP•CSSNCOPSPDFCOPSCFNLawfulInterceptionCLACLMWASClusterAssistantClusterManagerWebApplicationServerDiaInternalUseOnlyCompanyConfidentialCPSHW硬件结构CPS基于FlexiServer硬件平台。一个子框共提供14块插板，可以大致分为三类：•IPDirectornodes：负责数据转发•ServerNodes：负责业务处理•InternalLAN/SANnetwork：负责内部连接（SAN=StorageAreaNetwork）IPDirectorNodesServerNodesInternalLANCPS20NetworkDNS2SSN10SSN10SDN2Registeredsubscribersupto500kCLM1CLA2O&MNetworkInternalSANIPD2CFN2WAS2IPD2LegendsFunxFunxLoadsharingActi