012 Pt_bt100001_e01 Ptn 0Overview 43p

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PTN Overview

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Contents

n Background of PTN Developmentn Technical Features of PTNn Structure of ZTE PTN Productn

PTN Network Application







ALL IP Development Trend of ServiceNetwork

Drive for IP service:n To unify network protocols, simplify network layers and reduce TCOn Various types of new service available, to achieve integrated service

operations

CATVHFC

Telephonenetwork

Mobile radionetwork

Internet







Requirements for Bearer Network WhenServices Are Transformed to All IP

n Interface compatibility taking the Ethernet interface as a core andcompatible with the TDM/ATM services

n Service packetization based on packet switching and transmission,and functioning as statistics

n QoS mechanism monitoring services and providing end-to-enddifferentiated services

n Synchronization carrier-class clock/time synchronization schemen Network availability carrier-class OAM and protectionn Profit maximization reducing CAPEX/OPEX

Core layer

Packet accessPacket accessconvergenceconvergence

Bearer networkBearer network

Access convergencelayer

Serviceapplication

CoreCoreschedulingscheduling

channelchannel

Packet

Applicationplatform







Technology Selection of IP Bearer Network

CoreAccess convergence

Serviceapplication

Packet

Applicationplatform

MSTP

Ethernetswitch

Router

Newtechnology

IP service

bearer







IP core backbone networkSR SR

Core

Access

n Non-facing to connected networks and carrier-class network guarantee

unavailablen Delicacy management and differential services unavailablen Limited support for traditional services

Lack of aneffective maintenance method;difficult in network monitoring

Disconnected service route, anduncertain delay, jitter and packet loss Due to lack of an effective

detection mechanism of OAM,Protection cannot be completedfast and effectively.

Limited capacities ofTDM service accessand time synchronization

Service Adaptation Analysis on EthernetBearer Network







COREMetro

SR SR

Broadbandbusiness

BTSBTSNodeB NodeB

Routers

IP core backbone network

n The traditional router only supports limited traditional TDM/ATM services.n The traditional router lacks enough OAM methods, which is difficult to meet

the carrier-class requirements of the transport network.n The traditional router less supports time synchronization.

The traditional routeronly supports limitedtraditional TDM/ATMservices.

Time synchronizationof the traditional routeris realized by the NTPtechnology, andsynchronizationaccuracy keeps the mslevel.

The OAM functionsdefined in theIP/MPLS are simple,not supporting thelayered OAM.

IP Service Adaptation Analysis on IP/MPLSNetwork







The emergence of MSTP is to solve the problem of IP service bearing ontransmission network; however, this improvement is not thorough because of:

n Poor convergence capability and low statistical reusen Low extensible capacityn Fixed granularity and serious waste of bandwidthn Poor multicast processing capacity

Extendi-bility

Video server Video server

MSTPMax.bandwidth

SDH/MSTPbandwidth model

idle bandwidthunavailable

STM-N

STM-N

IP Service Adaptation Analysis on MSTPNetwork







Background of PTN Development

Solution?







IP-Based PTNPacket Transport Network (PTN)

PTNPTN

Packet technology(MPLS/

Enhanced Ethernet)

SDHtransmissionexperience

PTNPTN

! L2/L3 packet transfer technology

! Statistics, reuse and QoS

! Flexible deployment

! E2E service provision and management

! Accurate clock synchronization

! OAM and protection

n 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.

n The PTN technology, based on a packet architecture, carries on the principle of MSTP andcombines the Ethernet and MPLS advantages, which is developing into a technicalselection of the next-generation packet bearing .







3G

PTN OTN

VIP3G

SGSN/GGSNMSC/TMSC SRRNC

Bearing

User service

Serviceapplicationand control

Home applicatione-NB 3 Play

Future PTN Unified Bearing

n To achieve unifiedbearing of 2G, 3G, LTE,VIP, family users,WLAN, and Triple-Play

n IP services andflattening bearernetwork; PTN+OTNachieves unified bearingon access convergenceplane. PTN is a widepacket transport

network based onstandard protocols.

n Access-layer serviceisolation: classifyservices according todifferent demands onservice processingterminals, such as voiceVLAN, video VLAN, anddata VLAN, to isolate

services logically.n Network edge: withservice sense andcontrol capability

IP over OTN/WDM

Full IP services, Unified Bearer Network Establishment with PTN+OTN Structure, Flattening andIntelligent Network







Contents

n Background of PTN Developmentn Technical Features of PTNn Structure of ZTE PTN Productn PTN Network Application







TDM

E1

AbisPWE3

TDM

Abis

E1

TDM

Abis

IMA

E1

ATM

AAL2/5

Iub

PWE3

ATM

AAL2/5

Iub

STM1

ATM

AAL2/5

Iub

ETH

802.1Q

IPIub

ETH

PWE3

802.1Q

IP

Iub

ETH

802.1Q

IP

Iub

TDM E1 IMA E1 Ethernet ATMSTM-1TDM E1Ethernet

Tunnel Tunnel Tunnel

PHYPHYPHY

n 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 stablerate and transmits the TDM service transparently on the basis of byte. In the payload extractionmode, 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.n ATM to PWE3 supports single/multiple cell encapsulation. Multi-cell encapsulation may

increase network delay, which needs to be comprehensively considered in combination ofnetwork environment and service requirements.

n Ethernet to PWE3 supports non-control-word and control- word transport modes.

PTN

CEPE1 PE2

CE

TDM/ATM/

Ethernet

TDM/ATM/

Ethernet

Unified Multi-Service Bearing







EF

A F

B E

1Traffic : DSCP >55

2Traffic : VCI=20,30

3Traff ic : VLAN=20,30

1

2

3

DSCP>55

VCI=20,30, AF

VLAN=20,30

n Service sense helps to adoptappropriate scheduling modesaccording to different servicepriorities.

n For an ATM service, servicesense is mapped to different PWfor processing based on cellVPI/VCI labels. Priorities(including drop priority) can bemapped to the EXP field of PW.

n For an Ethernet service, servicesense can be based on outerVLAN ID or IP DSCP.

n For the TDM E1 real-timeservice with high delaysensitivity, forward it rapidly at afixed rate.

(Expedited Forward)

(Assured Forward)

(Best Effort)

6100/6200 6300

PTNBSC/RNCNodeB

BTS

SR/BRAS

MSC/MGW

Intelligent Sensing Service







PE PEPP

Providing End-to-End Distinguishing Service

n Network entrance: to identify user services, control access, and map service priorities totunnel priorities

n Forwarding node: To schedule according to tunnel priorities in modes of PQ, PQ+DRR, andPQ+WFQ

n Network exit: To display the tunnel-layer label, and restore the self-carried QoS information

EF

AF

BE

BSC

RNC







BSC/RNC

SGSN

MGW

MSC

FE

Active clock source

Standby clock source

aGW

MME

PTN accessloop

1PPS+TOD

PTN accessloop

PTNconvergenc

e loop

eNB

NodeB

Adopts the " IEEE 1588v2 + G.8261 # solution, which effectivelypromotes time synchronization accuracy.

Supports the SSM and BMC protocols and fulfills automatedprotection switchover of the time link, which guarantees reliabletransmission 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 requirementsof BSs in large-scale networking.

High-Accuracy Clock SynchronizationSolution







n

Supports the layered OAM, which realizes refined monitoring for faults and performances.n Supports the OAM engine, which realizes message insertion of the 3.3ms OAM protocol

and carrier-class protection switchover.n Supports end-to-end management of services and demand-based OAM configuration

according to service states.

MEP

MIP

OAM atomicfunction Client Service

Client Service OAM(UNI to UNI)

PW OAM

Tunnel OAM

Segment OAM

AccessLink OAM

AccessLink OAM

PTN

802.3ah

ITU-T Y.1731/802.1ag

ITU-T G.8114/G- Ach+Y.1731

PW OAM

Tunnel OAM

Segment OAM

PTN

ITU-T G.8114/G- Ach+Y.1731

ITU-T G.8114/G- Ach+Y.1731

Refined Service Monitoring







SR/BRAS

Protection functions on thedevice:n " 1+1 # hot backup of clock/switch/

control processing boardsn " 1+1 # hot backup of power and

fan processing boardsn E1 TPS protection

Protection functions on the network:n T-MPLS/MPLS-TP route protectionn T-MPLS/MPLS-TP SNCP protectionn T-MPLS/MPLS-TP loop-network protectionn Dual-loop dual-node protectionn Dual homing protectionn Ethernet protection

Protection functionson the network edge:n Link aggregation (LAG)n IMA protection

BTS/NodeB BSC/RNC

n The most comprehensive carrier-class protection mechanismn Comprehensive network protection, network-edge protection and device protectionn Various protection mechanisms available to corresponding services

eNBaGW

Carrier-Class Protection Mechanism







Unified Network Management

PTN

MSTP

MSTP

WDM

PTN

NetNumen T31 NetNumen T31

PTN MSTP

NetNumen T31

NetNumen T32

OSSStandard

northboundinterface

n Adopts the ZTE unified network management platform " NetNumen T3 # to fulfill unified management ofPTN, SDH/MSTP, WDM and OTN.

n Provides these functions such as route creation and management, QoS/OAM management as well asreal-time alarm and performance monitoring.

n Provides NE management and friendly interfaces that accord with requirements of the traditionaltransmission network, which makes PTN more manageable and easier to maintain.







Contents








ZXCTN 6100 ZXCTN 6200 ZXCTN 6300 ZXCTN 9008ZXCTN 9004

BSC

RNC

SR

BRAS

Access layer Convergence layer

10GE/new or legacynetwork

AbisSTM-1/GE

GE/10GE

IubSTM-1/GE

GE/10GE

Metropolitan area corelayer

S-GW

MME

MGW

Residential

Business

Mobile

Providing perfect PTN series productsProviding perfect PTN series productsIntegrated platform,high-efficiency transmission

Reliable, security, energy-savingand green network

Reliable, security, energy-savingand green network

Refined operation & maintenance,simplified management

Refined operation & maintenance,simplified management

ZTE PTN Product Family







Core layer Convergence layer Access layer

ZXCTN 6300ZXCTN 6200ZXCTN 6100 ZXCTN 9004 ZXCTN 9008

n ZXCTN 6100 is the most compact commercial PTN product on the access layer and applies to the BS access scenario only with1U high.

n ZXCTN 6200 is the most compact 10GE PTN product. W ith 3U high, it works as the convergence edge device in a small-scalenetwork, or as the high-end access-layer device in a large-scale network or full -service scenario. ZXCTN 6200 meetsrequirements of 10G access loop for developed areas.

n ZXCTN 9008 is the PTN product with the largest switching capacity up to bidirectional 2.24T, which fully meets requirements ofall services.

n These products have gained the PTN network access approval of Mini stry of Industry and Information Technology. ZTE is thevendor that provides the most commercial PTN products currently.

n ZXCTN 6100 is the most compact commercial PTN product on the access layer and applies to the BS access scenario only with1U high.

n ZXCTN 6200 is the most compact 10GE PTN product. W ith 3U high, it works as the convergence edge device in a small-scalenetwork, or as the high-end access-layer device in a large-scale network or full -service scenario. ZXCTN 6200 meetsrequirements of 10G access loop for developed areas.

n ZXCTN 9008 is the PTN product with the largest switching capacity up to bidirectional 2.24T, which fully meets requirements ofall services.

n These products have gained the PTN network access approval of Mini stry of Industry and Information Technology. ZTE is thevendor that provides the most commercial PTN products currently.

Type CTN6100 CTN6200 CTN6300 CTN9004 CTN9008

Bidirectionalswitching capacity

6G 88G 176G 800G 2.24T

Height 1U 3U 8U 9U 20U

Slot No. 2 4 10 16/8/4 32/16/8

Providing Perfect PTN Series Products







n Bidirectional switching capacity " 2.24T # n Dimension (mm) 482.6*572.6*888.2mm (W ! D! H)n Max. power consumption <2700W

n " 1+1 # redundant backup of the mastercontroller and clock; " 3+1 # redundantbackup of the switching network

n High integration of board ports; thedesign of flexible service subcard toenhance the use of each slot

n A large amount of bandwidth isreserved; ports can be smoothlyupgraded to 40G/100G to meetsmooth evolution of carriers $ servicenetworks.

Maximum access capacity

9008 is the PTN device with the largest switching capacity.

ZXCTN 9008 Product Overview







n Bidirectional switching capacity " 800G #

n Dimension (mm) 482.6*572.6*399.3mm (W ! D! H)n Max. power consumption <1400W

n " 1+1 # redundant backup of the

master controller;"

1+1#

redundantbackup of the switching network

n High integration of board ports; thedesign of flexible service subcardto enhance the use of each slot

n A large amount of bandwidth isreserved; ports can be smoothlyupgraded to 40G/100G to meetsmooth evolution of carriers $ servicenetworks.









n Bidirectional switching capacity" 176G #

n Dimension (mm)482.6*352.8*243 mm (W ! H! D)

n Max. power consumption <500Wn " 1+1 # redundant backup of the

master controller; " 1+1 # redundant

backup of the switching networkn Supporting TPS protection









n Bidirectional switching

capacity"

88G#

n Dimension (mm)482.6*130.5*240 mm(W ! H! D)

n Max. powerconsumption <250W

n " 1+1 # redundant backupof the master controller;" 1+1 # redundant backupof the switching network


ZXCTN 6200 is the compact PTN device that first supportsthe 10GE interface.

ZXCTN 6200 Production Overview








4xFE(o) service subcard 16xE1 service subcard1xGE service subcardMotherboard: 2xGE+8xFE

n Bidirectional switchingcapacity " 6G #

n Dimension (mm)480*43.6*225mm (W ! H! D)

n Max. power consumption<45W

n " 1+1 # redundant backup of themaster controller; " 1+1 # redundant backup of the

switching networkn Various installation modes:

desk-top mounting, wallmounting and cabinetmounting








Max.power

consumption(W)

30W

90W

200W

700W

Access-layerdevice

Convergence-layer device

Products at thesame level fromother vendorsPTN product

Powerconsumptionis 1/3 of that of

same-levelproducts in

industry.

n Lower-power-consumption and self-designed green chip, supporting dormant/standby moden Centralized exchange, new artwork, energy-saving design, reducing useless intra-device

power consumptionn Auto power control (APC), infinitely various speed fann Intelligent dynamic power adjustment system

Establishing Green Network Energy-Saving:Lowest Power Consumption in Industry







Values

Reducing cabinet footprint

Compact design Combined device toreduce deployment

Large-capacity,

highly-integrated chip

Reducing equipment roomoccupation

Height 1U

Power consumption < 30W

Advanced BS accessscheme in industry

3G

Establishing Green Network Fitness







Honor and Credit

" ZXCTN 9000 + ZXCTN 6000 # has been listed in InfoVision Award at BroadbandWorld Forum Europe 2009.







Contents








Backhaul End-to-End PTN Application Scenario

n Overall PTN end-to-end networking is used for transmission of high-value services, such as mobile BS services andVIP group services.

n A loop network is used as a primary mode in network topology.n Supports hierarchy-based OAM, service-based network protection and protection based on devices, boards and

cards.n High-accuracy time synchronization is instead of GPS.n Supports the end-to-end service management capacity of network management.n Accords with operation & maintenance customs of traditional transmission.

BSC/RNC

SGSN

MGW

AGW

MSCBTS

eNB

ZCTN 6100

ZXCTN 6100/6200

ZXCTN 6100/6200

ZXCTN6200

TDM E1

IMA E1/FE

IMA E1/FE

GE

NMS

ZXCTN6300

ZXCTN 6300

ZXCTN9000

ZXCTN9000

NodeB

NodeB







IP/MPLS Gateway Application Scenario

n Since the backhaul network adopts MPLS-TP bearing and the core network adopts IP/MPLS bearing,they need a MPLS gateway to implement the interconnection between them.

n

ZXCTN can provide both the functions of MPLS-TP and IP/MPLS, so it can be used as theinterconnecting node between the IP/MPLS networks of the convergence layer and the core layer.n With the VRRP protocol protection, it realizes dual-attribute mode so as to guarantee the reliable

bearing of services.

ZXCTN 9000

ZXCTN 9000CE

CE

IPRNC

MPLS-TP

Mobile BackhaulNetwork

IP RAN)

IP/MPLSMetro Core

Mobile Core(IP/MPLS)NodeB

NodeB

NodeB

eNB







Metro-E Gateway Application Scenario

n ZXCTN products can be used as a Metro Ethernet gateway to implement the bearing of non-IPinterface services on the Metro Ethernet, as well as the clock function and performancemonitoring.

E1

E1 IP CoreLayer

Metro-EFE

ZXCTN6100

ZXCTN 6300

BTS

ZXCTN6200

STM-1

FE

FE FE

FE

E1 E1

NodeB

NodeB

NodeBNodeB

eNBRNC







Metro-E FMC Application Scenario

U-PE

N-PE

E-PE

MPLS L2/L3 VPN

IP/MPLS Core Network

SwitchMSANBTS NodeB

BSC RNC AGW

)*+ AG

IPTV PlatformNGN Platform

DSL eNB

n ZXCTN can support unified bearing for 2G/3G, VIP client of VPN, IPTV, VoIP and broadbandservices.

n It can support various network protection technologies, including MPLS Tunnel 1+1/1:1, TE FRR,and MPLS-TP ring.

n It can support end-to-end H-QoS to satisfy the FMC scenario requirements of Metro Ethernet.

ZXCTN 9008

ZXCTN 9004

ZXCTN 6000







PTN Commercial Network of China Mobile

n The PTN network of Shen Zhen in China, as a result of ZTE together withChina Mobile spurring TD-based IP services, is a commercial extension ofmetropolitan area transmission network IP services of China Mobile.

n First achieve test and deployment of time synchronization.n In the first-phase item, there have been 100 access points, forming 14 GE

access loops. Two convergence loops are deployed on the convergencelayer. After wavelength % division scheduling through the core layer,services are established at the core equipment room.







ZTE PTN devices have first entered Asian famous MTO carrier Malaysia Telecom.

HSBB Item LOA of Malaysia Telecom







Problem of Viettel: All BSs are IPinterfaces and thereforenew IPTV serviceshave been fastdeveloped; however,bearing networks arestill MSTP networks.

ZTE solution:ZXCTN9000 devices, with large-capacity service access and transfer, are adopted inthis scenario to realize the carrier-level MPLS network and clock transfer by usingthe 1588 technology.

PTN Commercial Application of VIETTEL Vietnam







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

Promonte Project of Montenegro







The PTN devices have been successfully used in gateway scenarios existing inEurope, which combines two independent networks into a unified packet bearingnetwork, greatly decreasing the device number and types to be maintained inaddition to reducing clients ! CAPEX and OPEX.

The gateway application mode can fulfill interconnection between ZTE PTN devicesand Extreme Networks or L2 switch from other vendors, which smoothly evolves thenetwork.

Metro EthEth Eth

E1 E1/ ch.STM-1

Eth Eth

E1E1/ ch.STM-1 ZXCTN 6100

Metro Eth

SDH Network

Finnet Group of Finland EstablishingGateway Application Mode







Telecom Italia ProjectBNAS 1

multicast

SP 1

unicastBE + VoD +VoIP

N2X trafficgenerator

GbE

IE16200

BNAS 2

physical links and ports

multicast

N 2 X trafficgenerator

VoD Server

VoD

unicastBE + VoD +VoIP

SP 2

multicast SP 2

VoD SP 2

unicast SP 2

multicast SP 1

unicast SP 1

F2

M19008

M29008

F1

RF119004 RF21

9004

N2X trafficgenerator

multicast SP1 multicast SP2

multicast SP1Circuit emulation

multicast SP2

RF129004

IE26300

Internet

Internet

Multicast SP1VoD SP2

SDH analyzer

SDH analyzer

PDH analyzer

PDH analyzer

E1

E1

STM-1

9004

9004

6100

STM-1 loopInstead of E1

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 testpreceding other all competitors.







TIM Project of Brazil

ZTE solutionStandardPacket transmissionnetwork

Based on in-depth understanding of hybrid bearingrequirements of 2G and 3G mobile network, ZTE raisesthe full-packet-based PTN device solution.







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