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PTN Overview

PTN Overview. Contents. Background of PTN Development Technical Features of PTN Structure of ZTE PTN Product PTN Network Application. ALL IP — Development Trend of Service Network. Internet. Telephone network. Mobile radio network. CATV HFC. Drive for IP service:

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PTN Overview

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  1. PTN Overview

  2. Contents • Background of PTN Development • Technical Features of PTN • Structure of ZTE PTN Product • PTN Network Application

  3. ALL IP — Development Trend of Service Network Internet Telephone network Mobile radio network CATV HFC Drive for IP service: • To unify network protocols, simplify network layers and reduce TCO • Various types of new service available, to achieve integrated service operations

  4. TG SG Requirements for Bearer Network When Services Are Transformed to All IP • Interface compatibility——taking the Ethernet interface as a core and compatible with the TDM/ATM services • Service packetization——based on packet switching and transmission, and functioning as statistics • QoSmechanism——monitoring services and providing end-to-end differentiated services • Synchronization——carrier-class clock/time synchronization scheme • Network availability——carrier-class OAM and protection • Profit maximization——reducing CAPEX/OPEX Packet Packet access convergence Bearer network Core scheduling channel Access convergence layer Core layer Application platform Service application

  5. TG SG Ethernet switch Technology Selection of IP Bearer Network Packet ？ Access convergence Core Router Application platform IPservice bearer New technology Service application MSTP

  6. Service Adaptation Analysis on Ethernet Bearer Network IP core backbone network Disconnected service route, and uncertain delay, jitter and packet loss SR SR Core Due tolack of an effective detection mechanism of OAM, Protection cannot be completed fast and effectively. Access Lack of an effective maintenance method; difficult in network monitoring Limited capacities of TDM service access and time synchronization • Non-facing to connected networks and carrier-class network guarantee unavailable • Delicacy management and differential services unavailable • Limited support for traditional services

  7. IP Service Adaptation Analysis on IP/MPLS Network BTS NodeB NodeB IP core backbone network SR SR CORE Time synchronization of the traditional router is realized by the NTP technology, and synchronization accuracy keeps the ms level. Metro The OAM functions defined in the IP/MPLS are simple, not supporting the layered OAM. Routers The traditional router only supports limited traditional TDM/ATM services. Broadband business • The traditional router only supports limited traditional TDM/ATM services. • The traditional router lacks enough OAM methods, which is difficult to meet the carrier-class requirements of the transport network. • The traditional router less supports time synchronization.

  8. IP Service Adaptation Analysis on MSTP Network STM-N STM-N Extendi -bility Video server Video server MSTP Max. bandwidth SDH/MSTP bandwidth model idle bandwidth unavailable • The emergence of MSTP is to solve the problem of IP service bearing on transmission network; however, this improvement is not thorough because of: • Poor convergence capability and low statistical reuse • Low extensible capacity • Fixed granularity and serious waste of bandwidth • Poor multicast processing capacity

  9. Background of PTN Development Solution? PTN

  10. IP-Based PTN Packet Transport Network (PTN) • L2/L3 packet transfer technology Packet technology (MPLS/ Enhanced Ethernet) • Statistics, reuse and QoS • Flexible deployment PTN PTN PTN • E2E service provision and management SDH transmission experience • Accurate clock synchronization • OAM and protection • PTN takes packets as a transmission unit and bears carrier-level Ethernet services; meanwhile, it is an integrated transmission technology compatible with TDM, ATM and FC. • The PTN technology, based on a packet architecture, carries on the principle of MSTP and combines the Ethernet and MPLS advantages, which is developing into a technical selection of the next-generation packet bearing.

  11. RNC 3G 3G e-NB 3 Play VIP Future PTN—Unified Bearing Full IP services, Unified Bearer Network Establishment with PTN+OTN Structure, Flattening and Intelligent Network • To achieve unified bearing of 2G, 3G, LTE, VIP, family users, WLAN, and Triple-Play • IP services and flattening bearer network; PTN+OTN achieves unified bearing on access convergence plane. PTN is a wide packet transport network based on standard protocols. • Access-layer service isolation: classify services according to different demands on service processing terminals, such as voice VLAN, video VLAN, and data VLAN, to isolate services logically. • Network edge: with service sense and control capability SGSN/GGSN MSC/TMSC SR Service application and control IP over OTN/WDM PTN ＋OTN Bearing User service Home application

  12. Contents • Background of PTN Development • Technical Features of PTN • Structure of ZTE PTN Product • PTN Network Application

  13. PE2 PE1 Abis TDM Abis Iub E1 TDM Iub IP E1 IP 802.1Q 802.1Q ETH ETH Iub AAL2/5 Iub ATM AAL2/5 IMA ATM E1 STM1 Unified Multi-Service Bearing TDM/ATM/Ethernet TDM/ATM/Ethernet PTN CE CE ATM STM-1 Iub IMA E1 TDM E1 Ethernet Ethernet Iub TDM E1 IP Abis AAL2/5 802.1Q TDM ATM ETH PWE3 PWE3 PWE3 Tunnel Tunnel Tunnel PHY PHY PHY • TDM to PWE3:supports transparent and payload extraction modes. In the transparent mode, it is not sensitive of TDM service structure, yet regards TDM services as bit stream at a stable rate and transmits the TDM service transparently on the basis of byte. In the payload extraction mode, it is sensitive of frame structure/framing mode/timeslot information of TDM service, extracts the TDM payload and puts it into packet payload in order for transmission. • ATM to PWE3：supports single/multiple cell encapsulation. Multi-cell encapsulation may increase network delay, which needs to be comprehensively considered in combination of network environment and service requirements. • Ethernet to PWE3：supports non-control-word and control- word transport modes.

  14. NodeB BSC/RNC PTN MSC/MGW BTS 6100/6200 6300 SR/BRAS EF DSCP>55 Traffic : DSCP >55 1 1 Traffic : VCI=20,30 2 AF VCI=20,30, AF 2 Traffic : VLAN=20,30 3 VLAN=20,30 3 BE Intelligent Sensing Service • Service sense helps to adopt appropriate scheduling modes according to different service priorities. • For an ATM service, service sense is mapped to different PW for processing based on cell VPI/VCI labels. Priorities (including drop priority) can be mapped to the EXP field of PW. • For an Ethernet service, service sense can be based on outer VLAN ID or IP DSCP. • For the TDM E1 real-time service with high delay sensitivity, forward it rapidly at a fixed rate. (Expedited Forward) (Assured Forward) (Best Effort)

  15. EF AF BE Providing End-to-End Distinguishing Service P P RNC PE PE BSC • Network entrance: to identify user services, control access, and map service priorities to tunnel priorities • Forwarding node: To schedule according to tunnel priorities in modes of PQ, PQ+DRR, and PQ+WFQ • Network exit: To display the tunnel-layer label, and restore the self-carried QoS information

  16. High-Accuracy Clock Synchronization Solution Active clock source 1PPS+TOD PTN access loop MSC aGW SGSN NodeB PTNconvergence loop MGW MME BSC/RNC FE PTNaccess loop eNB Standby clock source Adopts the “IEEE 1588v2 + G.8261” solution, which effectively promotes time synchronization accuracy. Supports the SSM and BMC protocols and fulfills automated protection switchover of the time link, which guarantees reliable transmission of time. Meanwhile, supports in-band (Ethernet) and out-of-band (1PPS + TOD) synchronization interfaces, with flexible deployment. Under 100% load flow, meets the synchronization requirements of BSs in large-scale networking.

  17. Refined Service Monitoring MEP MIP OAMatomic function PTN PTN Client Service Access Link OAM Access Link OAM 802.3ah Client Service OAM(UNI to UNI) ITU-T Y.1731/802.1ag ITU-T G.8114/G-Ach+Y.1731 PW OAM PW OAM Tunnel OAM Tunnel OAM ITU-T G.8114/G-Ach+Y.1731 Segment OAM Segment OAM ITU-T G.8114/G-Ach+Y.1731 • Supports the layered OAM, which realizes refined monitoring for faults and performances. • Supports the OAM engine, which realizes message insertion of the 3.3ms OAM protocol and carrier-class protection switchover. • Supports end-to-end management of services and demand-based OAM configuration according to service states.

  18. eNB Carrier-Class Protection Mechanism BTS/NodeB BSC/RNC aGW SR/BRAS Protection functions on the network: • T-MPLS/MPLS-TP route protection • T-MPLS/MPLS-TP SNCPprotection • T-MPLS/MPLS-TP loop-network protection • Dual-loop dual-node protection • Dual homing protection • Ethernet protection • Protection functions on the • device: • “1+1” hot backup of clock/switch/ • control processing boards • “1+1” hot backup of power and • fan processing boards • E1 TPSprotection • Protection functions on the network edge: • Link aggregation (LAG) • IMAprotection • The most comprehensive carrier-class protection mechanism • Comprehensive network protection, network-edge protection and device protection • Various protection mechanisms available to corresponding services

  19. Adopts the ZTE unified network management platform “NetNumen T3” to fulfill unified management of PTN, SDH/MSTP, WDM and OTN. Provides these functions such as route creation and management, QoS/OAM management as well as real-time alarm and performance monitoring. Provides NE management and friendly interfaces that accord with requirements of the traditional transmission network, which makes PTN more manageable and easier to maintain. Unified Network Management OSS Standard northbound interface NetNumen T32 NetNumen T31 NetNumen T31 NetNumen T31 WDM MSTP PTN MSTP PTN MSTP PTN

  20. Contents • Background of PTN Development • Technical Features of PTN • Structure of ZTE PTN Product • PTN Network Application

  21. MME MGW S-GW Residential Business BSC Mobile RNC SR BRAS ZTE PTN Product Family ZXCTN 9008 ZXCTN 6100 ZXCTN 6200 ZXCTN 6300 ZXCTN 9004 Metropolitan area core layer Access layer Convergence layer GE Abis STM-1/GE Iub STM-1/GE 10GE/new or legacy network GE GE/10GE GE/10GE Integrated platform, high-efficiency transmission Providing perfect PTN series products Reliable, security, energy-saving and green network Refined operation & maintenance, simplified management

  22. Access layer Core layer Convergence layer ZXCTN 6100 ZXCTN 6200 ZXCTN 6300 ZXCTN 9004 ZXCTN 9008 Providing Perfect PTN Series Products • ZXCTN 6100 is the most compact commercial PTN product on the access layer and applies to the BS access scenario only with 1U high. • ZXCTN 6200 is the most compact 10GE PTN product. With 3U high, it works as the convergence edge device in a small-scale network, or as the high-end access-layer device in a large-scale network or full-service scenario. ZXCTN 6200 meets requirements of 10G access loop for developed areas. • ZXCTN 9008 is the PTN product with the largest switching capacity up to bidirectional 2.24T, which fully meets requirements of all services. • These products have gained the PTN network access approval of Ministry of Industry and Information Technology. ZTE is the vendor that provides the most commercial PTN products currently.

  23. ZXCTN 9008Product Overview • “1+1” redundant backup of the master controller and clock; “3+1” redundant backup of the switching network • High integration of board ports; the design of flexible service subcard to enhance the use of each slot • A large amount of bandwidth is reserved; ports can be smoothly upgraded to 40G/100G to meet smooth evolution of carriers’ service networks. Maximum access capacity • Bidirectional switching capacity “2.24T” • Dimension (mm)： 482.6*572.6*888.2mm (W×D×H) • Max. power consumption：<2700W 9008 is the PTN device with the largest switching capacity.

  24. ZXCTN 9004 Product Overview Maximum access capacity • “1+1” redundant backup of the master controller; “1+1” redundant backup of the switching network • High integration of board ports; the design of flexible service subcard to enhance the use of each slot • A large amount of bandwidth is reserved; ports can be smoothly upgraded to 40G/100G to meet smooth evolution of carriers’ service networks. • Bidirectional switching capacity “800G” • Dimension(mm)：482.6*572.6*399.3mm(W×D×H) • Max. power consumption：<1400W

  25. ZXCTN 6300 Product Overview • Bidirectional switching capacity “176G” • Dimension(mm)： 482.6*352.8*243 mm(W×H×D) • Max. power consumption：<500W • “1+1” redundant backup of the master controller; “1+1” redundant backup of the switching network • Supporting TPS protection Maximum access capacity

  26. ZXCTN 6200Production Overview Maximum access capacity • Bidirectional switching capacity “88G” • Dimension(mm)： 482.6*130.5*240 mm (W×H×D) • Max. power consumption：<250W • “1+1” redundant backup of the master controller; “1+1” redundant backup of the switching network ZXCTN 6200 is the compact PTN device that first supports the 10GE interface.

  27. ZXCTN 6100 Product Overview • Bidirectional switching capacity “6G” • Dimension(mm)： 480*43.6*225mm (W×H×D) • Max. power consumption：<45W • “1+1” redundant backup of the master controller; “1+1” redundant backup of the switching network • Various installation modes: desk-top mounting, wall mounting and cabinet mounting Maximum access capacity 1xGEservice subcard 16xE1service subcard 4xFE(o)service subcard Motherboard:2xGE+8xFE

  28. Establishing Green Network—Energy-Saving: Lowest Power Consumption in Industry 700W Max. power consumption(W) Products at the same level from other vendors PTNproduct 200W Power consumption is 1/3 of that of same-level products in industry. 90W 30W Access-layer device Convergence-layer device • Lower-power-consumption and self-designed green chip, supporting dormant/standby mode • Centralized exchange, new artwork, energy-saving design, reducing useless intra-device power consumption • Auto power control (APC), infinitely various speed fan • Intelligent dynamic power adjustment system

  29. Establishing Green Network — Fitness 3G Large-capacity, highly-integrated chip Compact design Combined device to reduce deployment Advanced BS access scheme in industry Values Height：1U Power consumption：< 30W Reducing cabinet footprint Reducing equipment room occupation

  30. “ZXCTN 9000 + ZXCTN 6000” has been listed in InfoVision Award at Broadband World Forum Europe 2009. Honor and Credit

  31. Contents • Background of PTN Development • Technical Features of PTN • Structure of ZTE PTN Product • PTN Network Application

  32. Typical Application Scenario—Backhaul End-to-End PTN Overall PTN end-to-end networking is used for transmission of high-value services, such as mobile BS services and VIP group services. A loop network is used as a primary mode in network topology. Supports hierarchy-based OAM, service-based network protection and protection based on devices, boards and cards. High-accuracy time synchronization is instead of GPS. Supports the end-to-end service management capacity of network management. Accords with operation & maintenance customs of traditional transmission.

  33. Core layer BSC RNC 6300 6300 Convergence layer 10GE 6300 6300 6100 Access layer 6100 GE GE 6100 6100 6100 6100 Typical Application of Backhaul Network • Typical service application types: • TDM E1 • IMA E1 • Ethernet service

  34. Used under the IP/MPLS backbone network; divided into three layers NPE, EPE and UPE; provides a large number of MPLS L2 VPN and MPLS L3 VPN as well as multicast to achieve integrated bearing of multi-services. Needs powerful network OAM and protection capacity. Supports powerful multicast copy capacity; EPE and NPE needs large capacity and table entries. Typical Application Scenario--Metro-E

  35. Networking mode: IAN=IP/ETH/TDM/PWE3 service bearing + enhanced OAM + unified graphic network management +clock Emphasized on dynamic support of IP services and used for mobile BS services and integrated bearing of fixed network services Network topology primarily adopts a loop and tree-shaped network. Has high requirements for bearing capacity of IP services as well as OAM and unified network management. High-accuracy time synchronization is instead of GPS. Combined with operation & maintenance customs of data communication and transmission Typical Application Scenario--FMC

  36. Typical Application Scenario—Backhaul Mobile Gateway Networking Moves through the third-party network and supports the mobile backhaul network of Any-media. Supports dynamic MPLS or Ethernet. Supports the 1588V2 ACR frequency restore algorithm. Due to optimized and compact Abis, promotes transmission efficiency and reduces leased bandwidth. Supports diversified interfaces such as ML-PPP E1, DSL, MW, PONand Ethernet.

  37. PTN Commercial Network of China Mobile The PTN network of Shen Zhen in China, as a result of ZTE together with China Mobile spurring TD-based IP services, is a commercial extension of metropolitan area transmission network IP services of China Mobile. First achieve test and deployment of time synchronization. In the first-phase item, there have been 100 access points, forming 14 GE access loops. Two convergence loops are deployed on the convergence layer. After wavelength –division scheduling through the core layer, services are established at the core equipment room.

  38. HSBB Item LOA of Malaysia Telecom ZTE PTN devices have first entered Asian famous MTO carrier— Malaysia Telecom.

  39. PTN Commercial Application of VIETTEL Vietnam Problem of Viettel: All BSs are IP interfaces and therefore new IPTV services have been fast developed; however, bearing networks are still MSTP networks. ZTE solution: ZXCTN9000 devices, with large-capacity service access and transfer, are adopted in this scenario to realize the carrier-level MPLS network and clock transfer by using the 1588 technology.

  40. PromonteProject of Montenegro Combined with microwave devices in networking, 6000 and 9000 full-series devices are adopted to establish the 3G bearing network.

  41. Finnet Group of Finland—Establishing Gateway Application Mode Eth Eth Eth Eth Metro Eth E1 E1/ ch.STM-1 E1 ZXCTN 6100 E1/ ch.STM-1 The gateway application mode can fulfill interconnection between ZTE PTN devices and Extreme Networks or L2 switch from other vendors, which smoothly evolves the network. SDH Network Metro Eth The PTN devices have been successfully used in gateway scenarios existing in Europe, which combines two independent networks into a unified packet bearing network, greatly decreasing the device number and types to be maintained in addition to reducing clients’ CAPEX and OPEX.

  42. Telecom Italia Project ZTE PTN devices have achieved the first full-function test in Europe , and ZTE is currently a unique vendor that has finished the TI PTN test preceding other all competitors.

  43. ZTE solution TIMProject of Brazil Packet transmission network Standard Based on in-depth understanding of hybrid bearing requirements of 2G and 3G mobile network, ZTE raises the full-packet-based PTN device solution.

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