中國電信cn2網絡介紹-wenkub
2023-05-18 18:42:07 本頁面
【正文】 elimited on the edge of the work to ensure a consistent QOS policy enforcement within the CN2 work Service resource allocation is base on class of service. GOLD class of service would be allocated with 2 times more redundant resources then BRONZE class of service Convergence of prefix varies on the traffic class. Prefixes of a GOLD class of traffic would convergence faster then prefixes of BRONZE class of traffic Different class service capability 表： CN2金、銀、銅三個等級業(yè)務 CN2網絡傳送質量指標。 由于金的資源冗余比較大，正常情況下由于業(yè)務流量突發(fā)造成的丟包率小于銀和銅。比如軟交換業(yè)務最大優(yōu)先占用 50％的資源，如果實際的軟交換業(yè)務流量只有 20％，剩下的 30％可以被 V等其他業(yè)務占用。 QOS技術是網絡故障或者擁塞情況下，實現(xiàn)業(yè)務等級區(qū)分的手段，保證高等級業(yè)務提供。減少業(yè)務互通障礙，保證業(yè)務提供，邊緣業(yè)務管理。中國電信下一代承載網絡 China tele Next Carrier Network(CN2） China Tele Corporation 韋樂平 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 to softswitchbased VoIP technology Preparation for 3Gbased mobile services Accelerate the development and application of the broadband services base on xDSL access technology Drive managed service and system integration service Built an Integated IP/MPLSbased multiservice platform — CN2 solutions Philosophy of Building CN2 CN2 strength work topology Scalable routing architecture Highest level of redundancy Highest level of security Different class service All services have edge functionality End to end control and managment Homogeneous Global Architecture Single Global ASN(AS4809) IP Layer Redundancy Drives Accountability ISIS level2only with subsecond convergence Diffservbased QOS enabled work MPLS and multicast enabled work MPLS FRR with sub50ms reroute Robust Architecture Allows for Unsurpassed Stability Offer Layer2/3 over IP or MPLS Leading S
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