FACTSHEETNETWORKING ASSP SOLUTIONS

Networking ASSP solutions: convergence of TDMand packet switched networks in the Metro area

The reference board featuring Fujitsu’s MB8AA3021 10GE switch

DescriptionOne of the main challenges in today'stelecom network designs is the smoothmigration from a TDM-based network toa Packet-Switched Network (PSN). Akey driver for this migration is to createa homogeneous network that usespacket technology in the corebackbone, metro and access networks.This single network will provide majorcommercial benefits due to reducedcapital and operational expenditures.

With the evolution of technology andthe convergence of networks, it willbecome standard practice to transmitand switch data in packets in a next-generation network (NGN). Migration toNGNs, however, will be a gradualprocess. The existing PDH and SDHnetworks supporting basic voice servicefor PSTNs will continue to exist.

To effect a smooth change, the old andnew technologies need to operate sideby side. Fujitsu Semiconductor Europe,together with strategic partnerAimValley, provide first-class silicon,software and support to enable systemdevelopers and operators to implementthese changes in today’s evolvingMetro networks.

CES Circuit Emulation Services� TDM over Packet solution forE1/DS1

� SAToP: unstructured agnosticpayload transport

� CESoPSN: transport of fractionalE1/DS1

� SAToP or CESoPSN transport modeselectable per channel

� Programmable TDM payload size perpacket

� Clock recovery mode selection perchannel: adaptive or differential mode

� Clock reference selection from TDMports, local reference clock or PHYclock

� Jitter and wander compliant to G.823,G.824 and G.8261 for traffic interfaces

� Network synchronisation compliant toG.813 and Stratum 3, when combinedwith HTG

� Programmable maximum latency perport

� Packet re-sequencing and missingpacket detection with TDM framereplication

MB87M2181 Ethernet overSDH/SONET� System-on-chip for SDH/SONET anddata applications

� Interfaces:- 4 x Multi-rate STM-1/OC-3,STM- 4/OC-12- 4 x E1/DS1 and TC-bus- 4 x 10/100/1G Ethernet

� Synchronisation E1/DS1� VC-4/STS1 and VC-12/VC-3/VT-1.5cross-connects

� 4 virtual concatenation groups withLCAS and differential delaycompensation

� GFP, LAPS and PPP mapping ofEthernet frames

� SDH/SONET/Ethernet performancemonitoring and alarming

� Flow control, rate control� Integrated timing functions, HDLCcontroller

MB87M3550 WiMAX 802.16-2004� WiMAX IEEE 802.16-2004 compliantbaseband

� High performance OFDM (256FFT,64QAM) based transmission

� Metropolitan orientation, laterimproved mobility (16e)

� One device to support SS and BS� Data encryption in hardware� LMAC provided as firmware

MB8AA3021 10G Ethernet switch� 400+ Gbps of non-blocking, lowlatency switching capacity

� 20-port of 10 Gigabit Ethernet withintegrated- XAUI/CX4 PHY for backplaneapplications- SFP+/XFI compatible PHY foroptical modules- Adaptive on-chip equalisation

� 2-port of Gigabit Ethernet formanagement

� On chip management-engine� Class of Service classificationcapability

� Committed and Peak InformationMetering for traffic shaping

� Full featured software support

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FACTSHEETNETWORKING ASSP SOLUTIONS

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ApplicationsVideo is one emerging application areadriving Metro Ethernet servicedeployment, with providers’ businesscustomers starting to plan desktopvideo-conferencing and collaborativemultimedia applications, for example.Service providers are also looking tothe rapidly growing web-based videoand interactive TV consumer market,including applications such as onlinegaming. Online gaming is thereforebecoming an increasingly importantservice, second only to IPTV, forresidential customers.

The application diagram above showstwo Metro networks, representing twodifferent cities with different examplesof user traffic on the access side: a newpacket-based service such as onlinegaming from residential customers anda traditional TDM-based service like theone used by an enterprise to connecttwo different locations using privateleased lines. Both kinds of traffic needto access Metro networks, travel acrossthem and reach their final destination atthe customer premises.

Data traffic generated by the residentialonline player on the left is connected tothe Edge Router of the Ethernet MAN;this router collects lower-rate datacoming from users and serviceproviders.

The Enterprise customer on the leftuses private leased lines based on E1interfaces. These TDM streams aremapped into Ethernet frames using aCES Circuit Emulation Service devicelocated in the Central Office and thenare transmitted across the MetroEthernet Network.

The different data streams are taggedand classified according to trafficprofiles matching the service levelagreements.Subsequently, they areaggregated into a 10G Ethernet stream

Ethernet and TDM technologies operate side-by-side inaccess, metro and core networks to provide triple playservices to both residential and business customers

AimValleywww.aimvalley.nl

WiMAX is a trdemark of the WiMAX Forum

Metro Ethernet Network Metro SONET/SDH Ring

Core Switch

Edge Router Edge Router

ADMOTN OTN

MSPP MSPP

Central Office Base Station

Subscriber

Residential Customer Enterprise Customer

Enterprise Customer

Ethernet Ethernet EthernetE1

E1

MB8AA3021 MB87Q2091 MB87Q2091

MB87M2181 MB87M2181

MB87M3550

MB87M3550

CES

Residential Customer

10G Ethernet Switch 10GE Mapping 10GE Demapping Add Drop

Aggregation Aggregation E1 Mapping Packet over TDM

WiMAX

WiMAX

TDM over Packet

and transmitted to the core switch,where the Fujitsu MB8AA3021 10Gb/sEthernet switch provides high capacityconnections in a fully meshed topology.

From here, a long-haul opticalconnection transmits the data from oneMetro network to the other. This link ismade using the Fujitsu MB87Q2091, adevice which maps 10G client signals,either Ethernet or SONET/SDH, into acommon OTN (Optical TransportNetwork) format.

On the right-hand side, to connect thedata stream coming from the secondresidential online player to the Metrooptical ring, the Fujitsu MB87M3550WiMAX chipset is used for both base-station and customer premisesequipment to provide the subscriber

with a broadband wireless connection.Packets are then mapped into theSONET/SDH transport protocol usingFujitsu’s MB87M2181 Ethernet overSONET/SDH device inside aMultiservice Provisioning Platform(MSPP).

The right-hand side enterprisecustomer’s E1 traffic is transmitted tothe MSPP where it is then mapped intoSONET/SDH format using anotherMB87M2181 device to access theMetro ring.

The data streams travel along theoptical ring divided into different timeslots and reach the OTN equipment,where another MB87Q2091 devicemaps it into the OTN protocol toconnect the two cities.

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