中國(guó)電信cn2網(wǎng)絡(luò)介紹(完整版)
【正文】 ondon, New York, San Jose, Washington etc. with service offering MPLS/VPN and Inter Services. Cn2網(wǎng)絡(luò)覆蓋國(guó)內(nèi) 199個(gè)城市，和 香港、東京、新加坡、倫敦、法蘭克福、紐約、華盛頓、圣何塞、洛杉磯 9個(gè)海外節(jié)點(diǎn)，提供國(guó)際 VPN、 Inter接入和網(wǎng)間互連業(yè)務(wù) 653 routers in total， including 417 P routers， 202 PE/SR routers，12 Public RR， and 12 VPN RR 1267 relay links with a total link bandwidth of （網(wǎng)內(nèi)中繼電路） Over 800 external interlinkage bandwidth（網(wǎng)間互連電路） with （網(wǎng)絡(luò)間互連電路，主要是與城域網(wǎng)互連電路） A total customer access link bandwidth of (用戶業(yè)務(wù)接入電路 ) (不包括軟交換、 3G接入帶寬 ) Network Capacity and Coverage CN2 VPN capability Support MPLS layer 2/3VPN, RFC2547based L3 VPN Draftmartini based Ether point to point service Ether multi point service (Vkompella VPLS) ATM/FR over MPLS（請(qǐng)根據(jù)思科的技術(shù)，補(bǔ)充相關(guān)的標(biāo)準(zhǔn)） Support 3 classes of service. GOLD, SILVER and BRONZE. 支持金、銀、銅三個(gè)業(yè)務(wù)等級(jí) Support N*2M、 N*64K、 Ether/VLAN、 L2TPv3, pseudowired Support work wide multicats of 600 multicast groups, end to end multicast traffic VPN coverage（ by end 2022） 202 PE routers in 199 cities 2 X ISR in GuangZhou, Beijing and Shanghai. The ISR can be deployed as VPN InterAS ASBR. 18 PE routes in 9 POPs located in Hong Kong, Tokyp, Singapore, London, Frankfurt, New York, Washington, San Jose and Los Angeles. By Mid 2022, the number of PE is expected to increase from 202 to 418 to facilitate intraPOP layer redundancy. CN2 VPN capablity VPN work capacity CN2 uses Cisco 12416 as PE routers with a total traffic handling capacity of 140G (unilateral direction) 業(yè)務(wù)接入端口 /PE（ 2個(gè)檔次）： D檔次。 由于金的資源冗余比較大，正常情況下由于業(yè)務(wù)流量突發(fā)造成的丟包率小于銀和銅。 QOS技術(shù)是網(wǎng)絡(luò)故障或者擁塞情況下，實(shí)現(xiàn)業(yè)務(wù)等級(jí)區(qū)分的手段，保證高等級(jí)業(yè)務(wù)提供。中國(guó)電信下一代承載網(wǎng)絡(luò) China tele Next Carrier Network(CN2） China Tele Corporation 韋樂(lè)平 Wei Leping Challenges Total voice traffic and revenue decreases by the end of 2022. The mobile phone and IP phone calls have cannibalized part of the voice traffic businesses Traditional munication work is unable to support China Tele’s strategy to bee a Integrated Information Service Provider. This is due to its lack of capability in offering valueadded service. High OPEX (Operating Expenses) is required for traditional hetergeneous/multiple works Existing ChinaNet is not a profit generating business Opportunities Acceleration of the Information and Communications Technology (ICT) adoption in government and enterprises would drives the demand for tele services Adoption of the SIPbased softswitch technology The impending releases of 3G license Rapid development of the broadband service Background Migration of voice service from PSTN
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