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Solutionsservice capabilities. New servicesare provided quickly in opticaltransport networks, dynamic circuitrequirements of IP networks canbe met, and the structure of thetransport network can be optimizedand evolved.optimized OAM. Data are collectedthrough deep packet inspectionand traffic probing at the front endand are analyzed by the traffic andbehavior analysis system at the backend. Inspecting services, defininguser behaviors, and automaticallydiscovering user behaviors arenecessary in building an intelligentmultidimensional communicationpipe that can control services.Statistics on user status, onlineuser type, user distribution, andnetwork resource allocation makenetworks visible. Differentiatedservices, access, and chargingmodes makes users manageable.Visible, controllable, and optimizedmanagement of bearer networkscan be realized. Network resourceallocation can also be optimizedand the value per bit maximized inbearer networks.Converged BearerC o n v e r g e n c e i s t h e c o r e o fintelligent full-service bearingnetworks. A converged bearer notonly reduces network constructioncosts but also allows for networkexpansion and evolution. The key to aconverged bearer network is equipmentconvergence. This unifies multiservicebearing, adapts to development trendsof telecom technologies, and protectsoperator investments. The convergedbearer network proposed by ZTEcovers converged access and convergedIP and optical network.In mobile backhaul, IP/MPLSand MPLS-TP are gradually beingconverged. IP/MPLS enhances OAMand network protection, and MPLS-TPenhances L3 VPN. Based on a unifiedsoftware and hardware platform, ZTE’sconverged transport network equipment,ZXCTN, enables both IP/MPLS andMPLS-TP, protects network investments,and supports smooth evolution.In the backbone network, IPnetworks are heavily burdened.Expanding traditional IP networksgreatly increases costs and cannotsolve the problem of traffic congestion.How to use relatively low-cost opticalnetworks has become the focus ofoperators. The appropriate solution isto fully converge the service planes,control planes, and managementplanes of IP and optical networks. Thisis an important development trendof bearer networks. ZTE proposes aconverged IP and optical network. Byusing PCE and network planning toolsat the optical and IP layers, the twolayers can share network resources,plan collaboratively, optimize trafficpaths, improve backbone networkresource use, and improve transportefficiency. The problem of risksharing can also be solved to improvebackbone network stability. For fastservice deployment and quick faultlocating, unified end-to-end networkmanagement is performed for theIP and optical layers. This improvesoperating efficiency and reduces TCO.Broadband BearerHigh bandwidth is the basis ofan intelligent bearer network andis important for improving userexperience. Developing highbandwidthbearer networks hasbecome a main concern of operators.Cluster systems and 100G are hottechnologies that have attracted muchattention in the industry. ZTE hasparticipated in drafting IEEE 100GE,ITU-T 100G ODU4 and 100G WDMstandards. ZTE’s data and opticalnetwork products all support 100Gplatforms. The ZXR10 T8000 100Gcluster router has the largest capacityin the industry. By using an innovativevirtual cluster control technique, a12ZTE TECHNOLOGIES August 2011
cloud computing-based control plane,and high-performance 100G chips, thecluster router can support at most a16+64 multichassis system and 200Tbpsswitching. This provides high-speedbearer channels for intelligent bearernetworks. ZTE’s end-to-end 100Gbearer network solution provides ultrahighspeed across the network—fromconvergence layer to backbone layerand from transport layer to IP layer.The solution greatly increases networkcapacity, enriches operator services,optimizes network architecture, andenhances an operator’s competitive edge.High-Reliability BearerHigh reliability is the key to thestable running of bearer networks. ZTEproposes a plane-independent networkarchitecture for service bearing. Thepublic service plane carries high-speedInternet access and dedicated Internetaccess services, and the telecom serviceplane bears differentiated servicessuch as mobile service, governmentand enterprise VPN, and self-operatedservice. Plane-independent protectiontechnologies are also deployed toensure reliable service bearing. On thepublic service plane, ZTE’s ethernetsmart ring, ethernet smart switch(ZESR/ZESS), and link aggregationgroup (LAG) are deployed to protectnetworks at the convergence layer.Virtual router redundancy protocol(VRRP) is deployed to protectgateways, dual-node cluster hot backupis deployed to protect the servicecontrol layer, and IP fast re-route (IPFRR) is deployed to protect routes at theIP layer. On the telecom service plane,1+1/1:1 path protection, ring protection,traffic engineering (TE) protection andLAG are deployed to protect backhaulservices. VRRP, dual-node cluster hotbackup, TE FRR/VPN and FRR/IPFRR are deployed to protect the MANservice control layer and backbonelayer. At the transmission layer, opticalpath shared protection, optical multiplexsection shared protection, 1+1 opticalpath protection, 1+1 optical multiplexsection protection, and 1:N opticalpath protection are deployed for highnetwork reliability.IPv6 EvolutionBecause the IANA IPv4 addresspool was exhausted in February2011, and the addresses of the AsiaPacific Network Information Center(APNIC), which allocates addresses inAsia Pacific, will soon be exhausted,operators in Asia Pacific will be unableto obtain IPv4 addresses for businessdevelopment. IPv6 has therefore beenintroduced to solve this problem. Withthe advantages of mass address space,end-to-end QoS, mobile IP address,network security, and plug and play,IPv6 meets the requirements for servicedevelopment and has become the coreof next-generation Internet.ZTE has been involved in developingIPv6. It has worked closely with FranceTelecom, China Telecom, and ChinaMobile to develop quality products andsolutions for smooth evolution to IPv6.ZTE’s end-to-end network solution forevolution to IPv6 supports DS-Lite,6RD, NAT64 and NAT444 withoutaffecting existing services.Its intelligent next-generation bearernetwork solution provides residentialusers with access control, automaticbandwidth adjustment, and enhancedvideo experience. It provides governmentand enterprise users with differentiatedservices and intelligent resourcemanagement. And it provides mobileusers with smart pipes for end-to-endQoS, protection, and OAM. The solutionalso supports smooth evolution to IPv6.ZTE has been researching thelatest technical standards. Cuttingedgetechnologies are driving thedevelopment of bearer networks andare helping operators build future-proofbearer networks. ZTE is ready to joinhands with operators to build intelligent,converged, reliable next-generationbroadband bearer networks that bringadded value.August 2011ZTE TECHNOLOGIES13
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Page 9 and 10: and the scale of the closely couple
Page 11 and 12: the network in years to come. DualS
Page 13: SolutionsIntelligent Next-Generatio
Page 17 and 18: user service experience.In the conv
Page 19 and 20: healing by enhancing measurementcap
Page 21 and 22: An upsurge in voice and data traffi
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Page 25 and 26: Third EyeZTE ZXR10 T8000 Cluster Ro
Page 27 and 28: The T8000 draws approximately5100 w
Page 29 and 30: News BriefZTE Awarded Optical Vendo
Page 31 and 32: ZTE Unveils World’sFirst Commerci

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