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  • Carrier Ethernet Services -The Future

    Public Multi-VendorInteroperability Test

    Berlin, September 2008

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    Carrier Ethernet World Congress 2008 Multi-Vendor Interoperability Test

    EDITORS NOTEThis year the interoperabilityhot staging test for theCarrier Ethernet WorldCongress took place inparallel to the BeijingOlympics.80 engineers from 28 parti-cipating vendors with over100 systems attended ourtest. According to data fromHeavy Reading, more than

    90% of the Carrier Ethernet switch and router marketshare were represented in this test.The participating vendors verified 34 test areas inany-to-any combinations in ten days, trulychallenging the Olympic motto Faster, Higher,Stronger. Carrier Ethernet implementations supportmore functions and cover more markets today ranging from core to microwave to access, E-Lines toE-Trees, triple play to mobile backhaul.It was an outstanding experience to witness themassive testing feast, a unique get-together ofvirtually all leading playerswith one single goal:To improve multi-vendorinteroperability of advancedCarrier Ethernet implementa-tions.An EANTC panel of serviceproviders worldwide includingexperts from COLT, GVTBrazil, PT TELKOM Indonesia,T-Systems and Metanoia Increviewed the test planthoroughly to ensure the eventsscenarios are realistic andsound.Interestingly, market forces areoperating at full strength. Thisyear, we once again testedthree transport technologies inthe test events metro/aggre-gation networks: MPLS, PBB-TEand T-MPLS. These threecompete to some extent atour test, they all proved beingwell suited for the transport of Carrier Ethernetservices.Service OAM support is becoming mandatory foraggregation and CPE devices; the Ethernetmicrowave market flourishes; mobile backhaulpushes support for backwards compatibility (ATMpseudowires, circuit emulation) and new features(clock synchronization, IEEE 1588v2, E-Tree, amongothers).This white paper summarizes in detail themonumental effort that the participating vendors andEANTC team underwent. Enjoy the read.

    INTRODUCTIONThis years interoperability event focused on theFuture of Carrier Ethernet Services. While eachprevious event concentrated on specific topics suchas mobile backhaul or service creation, this eventaimed to congregate the knowledge and experiencethe industry gained in the last four years into a singlemodern, converged network showing all that a tier-one service provider is likely to encounter. Wetherefore tested:

    Converged residential, business and MobileBackhaul services

    Clock synchronization Business services realized using E-Line, E-LAN

    and for the first time E-Tree services

    The leading access, transport and aggregationtechnologies

    Microwave access and transport Ethernet OAM: Fault management and perfor-

    mance monitoring

    High availability Management and SLA reportingIn order to construct such a large testnetwork and cover all the above testareas a ten day, closed doors hotstaging event was conducted atEANTCs lab in Berlin, Germany.Since the first Carrier Ethernet WorldCongress in 2005, EANTC hasorganized interoperability test eventswhich are then showcases at thecongress.Our interoperability showcases aredriven by three main goals:Technical Through participation inthe event, vendors have the oppor-tunity to verify the interoperability oftheir devices and protocol implementa-tions against the majority of theindustrys leading vendors.Marketing The participants canshowcase the interoperability of theirlatest solutions on a unique, large-scale platform.

    Standards When fundamental issues are foundduring the hot staging event EANTC reports thediscoveries to the standard bodies. These in turnupdate the standards.EANTC started the preparation for the event byinviting interested vendors to weekly conferencecalls during which the technical and marketing goalsfor the event were discussed and agreed. The testplan, created by EANTC based on the test topicssuggested by the vendors, expanded on theexperience gained from previous events and waslined up with recent IEEE, IETF, ITU-T and MEFstandards.

    Carsten RossenhoevelManaging Director

    TABLE OF CONTENTSParticipants and Devices ..............3Network Design..........................4Interoperability Test Results ...........4Ethernet Service Types .................4Diverse Access Technologies ........6Diverse Transport ........................7MPLS Core .................................8E-NNI........................................9Mobile Backhaul.......................10Clock Synchronization...............14Ethernet OAM ..........................15Resilience and Fault Detection.....18Management and SLA Reporting.21Acronyms.................................22References ...............................23

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    Participants and Devices


    Service Provider Test Plan ReviewThe draft test plan was reviewed by a panel ofglobal service providers in July this year. Theirfeedback and comments were reflected in the finalversion of the test plan. EANTC and the partici-pating vendors would like to thank: COLT, GVTBrazil, PT TELKOM Indonesia, T-Systems andMetanoia Inc.

    Vendor Participating Devices

    Actelis Networks ML658

    ADVA OpticalNetworking

    FSP 150CC-825

    Alcatel-Lucent 1850 TSS-405650 CPAM7450 ESS-67705 SAR7750 SR79500 MPR

    Calnex Solutions Paragon Sync

    CambridgeBroadband Networks


    Ceragon Networks FibeAir IP-MAX2

    FibeAir IP-10

    Ciena LE-311vLE-3300

    Cisco Systems 76067604ME4500Catalyst 3750-MEME-3400-2CSME-3400-12CS

    ECI Telecom SR9705

    Ericsson Marconi OMS 2400

    Foundry Networks NetIron XMR 8000

    Harris StratexNetworks

    Eclipse (Gigabit) Radio

    Huawei Technologies NE5000E Cluster SystemNE40E-4CX600-4

    InfoVista VistaInsight for Networks

    Ixia XM2 IxNetwork

    Juniper Networks M10iMX240MX480


    Nokia SiemensNetworks

    hiD 6650Flexi WCDMA BTSFlexiHybridRACEL

    Nortel Metro Ethernet RoutingSwitch (MERS) 8600

    RAD DataCommunications


    Redback Networks an Ericsson Company

    SmartEdge 400

    Rohde & Schwarz SIT SITLine ETH




    Spirent TestCenter

    Symmetricom TimeProvider 5000 PTPGrand MasterTimeCesium 4000

    Tejas Networks TJ2030

    Telco Systems a BATM Company


    Tellabs 8830 Multiservice Router

    Vendor Participating Devices

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    Carrier Ethernet World Congress 2008 Multi-Vendor Interoperability Test

    NETWORK DESIGNAs in previous events we set off to construct anetwork that would allow all participating vendors toestablish end-to-end Ethernet services with any of theother vendors. One of the central design consider-ations for the network was to enable any devicepositioned in the access network to reach any otheraccess network device regardless of the otherdevices point of attachment to the network. Thisproved to be especially useful for such end-to-endtests as Service OAM or Mobile Backhaul. Thespecifics of these tests can be found in the test casesections.We also aimed to build a network that would lookfamiliar to service providers. It is perhaps unrealisticto expect that service providers will incorporate allcurrent transport technologies into their network.Nevertheless the familiar network domains are likelyto exist: access, aggregation, metro and core,regardless of the chosen transport technology. It isrealistic, however, to expect service providers to useMPLS in the core.Looking at the network from a customersperspective, we used the following network areas:

    Access: The devices that normally exist at thecustomer premise or by NodeBs or base stationswere positioned here. We were lucky to see adiverse number of access technologies for trans-porting Ethernet such as microwave links,copper, and fiber. These devices implementedthe UNI-C construct as defined by the MEF.

    Aggregation: The aggregation area of a networkconsisted of a variety of solutions meant toaggregate customer premise devices. Thisincluded Provider Bridges and H-VPLS Multi-Tenant Unit Switches (MTU-s). When applicablethese devices performed the UNI-N role in thenetwork.

    Metro: Three different transport technologieswere used in each of the three metro areanetworks: MPLS, PBB-TE and T-MPLS. Thisallowed each transport technology to test its ownresiliency and Network-to-Network Interface(NNI) solutions.

    Core: As stated above, IP/MPLS was used tosupport connectivity between the different metroarea networks in order to realize end-to-endservices. In addition, MPLS Layer 3 VPNs asdefined in RFC 4364 were tested in the core ofthe network.

    The physical network topology presented heredepicts the roles of all the devices and theirrespective placement in the network. Please note thatmany tests required logical connectivity between thedevices, often at an end-to-end nature, which will beshown, where applicable, using logical topologiesin each test section.

    INTEROPERABILITY TEST RESULTSIn the next sections of the white paper we describethe test areas and results of the interoperabilityevent. The document generally follows the structureof the test plan.Please note that we use the term tested whenreporting on multi-vendor interoperability tests. Theterm demonstrated refers to scenarios where aservice or protocol was terminated by equipmentfrom a single vendor on both ends.

    ETHERNET SERVICE TYPESThe Metro Ethernet Forum (MEF) has defined threeEthernet service types in order to allow the industrya