電信行業(yè)網(wǎng)絡(luò)技術(shù)的發(fā)展趨勢(shì)研究(參考版)
2025-03-05 06:49本頁(yè)面
【正文】 4).電信網(wǎng)的大趨勢(shì)是逐步實(shí)現(xiàn)分組化，無(wú)連接 化和全球?qū)ぶ?，最終形成一無(wú)縫的 IP網(wǎng)絡(luò)結(jié)構(gòu)！ 新形勢(shì)對(duì)電信網(wǎng)的要求 (2) 3/1/2023 18 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 5) 必須暫時(shí)放棄端到端 ATM連接的理想，用戶處將 以以太網(wǎng) /快速以太網(wǎng)和 IP接入為主 6) 銅纜接入網(wǎng)必須改造，出路光纖 +無(wú)線 7) 為應(yīng)付 IP及其他業(yè)務(wù)引起的巨大壓力 ,以 WDM技 術(shù)為代表的下一代大容量光網(wǎng)絡(luò)建設(shè)勢(shì)在必行， 長(zhǎng)途主干線上應(yīng)開始應(yīng)用新一代光纖，各種 IP 業(yè)務(wù)的旁路技術(shù)也大有市場(chǎng) 8) 對(duì)電信公司，實(shí)現(xiàn)電話和數(shù)據(jù)的融合是首要任 務(wù)，下一步才是多媒體，三網(wǎng)融合是長(zhǎng)遠(yuǎn)目標(biāo) 新形勢(shì)對(duì)電信網(wǎng)的要求 (3) 3/1/2023 19 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 下一代網(wǎng)絡(luò) New public work (NPN)新的公用網(wǎng) Unified work 一體化網(wǎng) Continuously upgrable work 可持續(xù)發(fā)展的網(wǎng)絡(luò) R/S 3/1/2023 20 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Core Network Migration for IP Premium Service = MoneyMaking = Controlled QoS Regular Best Effort = Not MoneyMaking = Suppress Investment Access Network Access Network IP/ATM “Premium” Services w/ Controlled QoS IP/SONET or WDM Regular BestEffort Services IP Core Network 3/1/2023 21 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 可持續(xù)發(fā)展網(wǎng)絡(luò) 的基本要求 ? 可支持現(xiàn)有和將有的所有業(yè)務(wù) ? 具有巨大的可持續(xù)擴(kuò)容的鏈路容量和節(jié)點(diǎn)容量 , 因而物理層一定是以 WDM為基礎(chǔ)，以O(shè)ADM與 OXC為節(jié)點(diǎn)的光傳送網(wǎng) ? TCPIP將成為主導(dǎo)的上層通信語(yǔ)言， 但不完全排除其他通信協(xié)議，因而 可同時(shí)支持現(xiàn)有電路交換網(wǎng)， ATM網(wǎng)，以太網(wǎng)和寬帶 IP網(wǎng) ? 具有很高的網(wǎng)絡(luò)和業(yè)務(wù)生存性 ? 最終將是以 IP為基礎(chǔ)的無(wú)縫融合的網(wǎng) 3/1/2023 22 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 電話網(wǎng) 網(wǎng)關(guān) 數(shù)據(jù)核心網(wǎng) IP/ATM/SDH/Optical 接入服務(wù)器 以數(shù)據(jù)為主的未來(lái)網(wǎng)絡(luò)結(jié)構(gòu) Inter 大企事業(yè) 居民 接入服務(wù)器 R R ATM SW 3/1/2023 23 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 IP over Optical IP over SDH IP over ATM 未來(lái)的 IP分層傳送網(wǎng) 3/1/2023 24 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 MultiServices DataCentric Network Vision POTS ISDN PSTN Signaling Gateway POTS IP Access Server xDSL Residential Gateway Other Business MUX Edge Switch ? RADIUS Servers ? Billing Servers ? Name Servers ? Data VPN Session Managers Network Management Service and Business Management Network Databases PSTN Features Servers Resource Servers Network and Service Management RAS POTS ISDN POTS ISDN OC3 xDSL Remote Access Server Voice ATM LANs NIU NIU Fixed Wireless Business Wireless Packet Circuit Gateway Firewall ... Inter PSTN SDH/Optical Core Network IP/ATM/SDH/Optical 3/1/2023 25 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 7R/E Architecture Any Vendor’ s Tandem or Long Distance Office Voice/Data/Video MultiService Packet Network SS7 Network STP ATM/IP Core Network AT IXC EO Feature Servers MultiMedia Resource Server OneLink OAMP Manager SCP Packet Gateways Any Vendor’ s End Office Packet Gateways Full Range of Narrow BroadBand Circuit Packet Access Full Range of Narrow BroadBand Circuit Packet Access 3/1/2023 26 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 ? How packet works can provide voice services that are petitive with circuit switched works 7R/E is... 7R/E MultiService Solution AT IXC EO Packet Gateways Any Vendor’ s End Office Packet Gateways Full Range of Narrow Broadband Circuit Packet Access Packet Network Feature Server OneLink OAMP Manager MultiMedia Resource Server Full Range of Narrow Broadband Circuit Packet Access 3/1/2023 27 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 7R/E is... 7R/E Packet Local Solution ? How other vendor’ s endoffice switches can use lower cost packet transport and provide new IP/ATM based features services Packet Network Circuit Network Trunk Access Gateway Line Access Gateway Feature Server OneLink OAMP Manager MultiMedia Resource Server 3/1/2023 28 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Circuit Network 7R/E is... ? How tomorrow’ s tandems are built to virtually eliminate tandem congestion and exhaust 7R/E Packet Tandem Solution Packet Gateways Packet Gateways Feature Server(s) OneLink OAMP Manager) 3/1/2023 29 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 7R/E is... ? How the 5ESS is transformed into a 7R/E to achieve rapid feature creation and almost unlimited scaleability 7R/E Packet Driver (5ESS to 7R/E transformation) AM Line Units SM2023 SMP Trunk Units Packet Gateways OneLink OAMP Manager Hub/Bridge or Switch/Router Packet Gateways Packet Gateways Line Units SM2023 SMP Trunk Units Line Units 2023 SMP Trunk Units CM2 Feature Server(s MultiMedia Resource Server 3/1/2023 30 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 7R/E is... ? How circuit and packet works will offload dialup data traffic and offer remote access services 7R/E Dialup Data Solution (MultiServicesModule) Packet Networks (IP/FR/ATM) Public Inter ISP InterOffice Circuit Networks MSM MSM MSM MSM 3/1/2023 31 電信網(wǎng)絡(luò)技術(shù)的發(fā)展 RITT 趙慧玲 Core Data Network Today ? IP and nonIP traffic is carried over ATM/SDH core ? Connections between rout
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