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A White Paper from Telco SystemsT-Marc 300Network Edge forCarrier EthernetContentsPurpose-built Carrier Ethernet solutions.2Telco Systems’ AccessNetworking .2T-Marc 300 AccessNetworking components.3AccessEthernet .4AccessMPLS .4AccessIP .5AccessManagement .5Summary.6

Today’s service-enabling, high-bandwidth networks demand provisioning, monitoring, fault isolation,trouble- shooting and remote management tools that have long been deemed crucial in traditional,business-class WAN transport services. While Carrier Ethernet is being increasingly used as the unifyingdelivery service, increased geographic reach is far more likely to depend on multiple carriers andtechnologies. Multiple streams of concur- rent voice, video, data and wireless services are required tobe delivered over different transport networks.Though Carrier Ethernet is an excellent medium for service convergence and provides an effectivefoundation for optimizing total cost of ownership, effective management across the service deliverylifecycle can get un- wieldy, if unchecked.Telco Systems’ T-Marc Ethernet Demarcation and Extension (EDE) products are intelligent and remotelymanaged, multi-port customer-premises equipment (CPE) that deliver managed converged servicesover virtual Ethernet, MPLS/VPLS and IP access networks. T-Marc allows service providers to delivermultiple services on separate customer interfaces, including multiple services over a single customerinterface, thereby facilitating different business models.Network Edge: Purpose-built CarrierEthernet solutionsT-Marc is a purpose-built Ethernet demarcation systemthat maps into existing standards-based networks. Usingmulti-layer networking, flexible traffic management andengineering, and an embedded OAM, test and assuranceframework, the T-Marc product line provides a secure,managed, high-performance solution QoS-enabledEthernet service delivery.Telco Systems’ AccessNetworking Realizing the potential of Ethernet – its simplicity, flexibilityand affordability – Telco Systems embarked on a missionto extend Ethernet with Carrier-enablingattributes. Using attributes such as transparentOperations, Administration and Maintenance (OAM) andremote system management, Telco Systems pioneeredremotely managed carrier-grade Ethernet Access.These solutions offer service providers the ability forproactive fault management by performing remotetroubleshooting, loopbacks, statistics collection forperformance management.As networks evolve to provide converge service deliveryover multiple transport technologies, they drive the needfor highly- intelligent Ethernet demarcation and accesssystems. Not only do these systems need to run OAM forservice assurance by performing loopbacks, performancemanagement statistics collection, and verify the remotehealth and status, but they are also required to beservice- aware: manage customer traffic flows to enabledifferentbusiness/franchise models, and operate in differentmarkets.Service delivery lifecycle management is a key elementin reducing Total Cost of Ownership (TCO). All operationfrom initial circuit turn-up and provisioning, serviceadministration and qualification, performance assuranceand management, and application delivery must beconsolidated in a managed offering. For example, oncenetwork elements have been provisioned as part ofservice creation, it is essential that such services beverified during service turn-up without a need for externaltest heads. Demarcation systems function as testelements during the service turn-up phase.Once a service is validated, the correspondingdemarcation system must change operational modes toprovide managed, multi-service networking, along withintegrated performance monitoring.These key elements form the basis and provide afoundation for Telco Systems’ T-Marc 3x0 EDE productfamily. Being purpose- built for demarcation and serviceextension -TELCO SYSTEMSTo learn more, visit Telco Systems at http://www.telco.com

including access and aggregation — T-Marc 3x0 providesthe following features: Adaptation to multiple transport domains IEEE 802.1D (MAC Bridging), 802.1Q (VLAN Bridging), and802.1ad (Provider Bridging) MPLS and MPLS-based Hierarchical Virtual Private LANService (H-VPLS) IEEE 802.1ad (Provider Backbone Bridging), PBT,802.1Qay (Provider Backbone Bridging with TrafficEngineering) Conformance to multi-layer OAMframeworks IEEE 802.1ag for connectivity OAM ITU-T Y.1731 for added performance management MEF Services OAM for application-type monitoring Service management and interworking with serviceprovider workflow paradigmsTelco Systems’ innovative and state of the art EDEsolutions embody a purpose-built framework whichensures revenue- assured delivery of managedconverged services (voice, video, data and wireless) byproviding:T-Marc 300 AccessNetworking componentsAccessNetworking comprises of a set of components– building blocks – that formulate purpose-builtdemarcation, access and service extension solutionsfor service providers. Standards, along with standardsfriendly extensions, are customized for use in accessnetworks, but allow full interoperability in multi-vendornetworks. Corresponding extensions are leveraged toprovide co-resident, value-added features that can beused within Telco-specific sub- domains.Telco Systems’ AccessNetworking includes, but is notlimited to, the following: AccessEthernet AccessMPLS AccessIP AccessManagement Adaptation over multiple transport domains fortransparent deployment into existing networks. Extensibility to allow future transport options andprotocol suites. Multi-layer OAM capability for managed and assuredservice delivery. Full service management for adaptation into serviceprovider and OEM management use models. Workflow interfaces to flexibly map into service providerbusiness operations.TELCO SYSTEMSTo learn more, visit Telco Systems at http://www.telco.com

AccessEthernet The AccessEthernet network model is shown in thefollowing diagram:CustomerNetworksDataVideoMulti-service UNIVoiceAccessNetworkService DeliveryNetwork802.1ad/Q-in-QSignaled MPLS Domain802.1ah/PBT/PBB-TEVirtual Ethernet DomainL3/IP DomainEthernetServiceDemarcationLACPXSTPL2 olPAccessMPLS The AccessMPLS network model is shown in the followingdiagram:CustomerNetworksAccessNetworkLDP DomainInternet Unified operational framework Managed multi-service integration Multi-subscriber, multi-provider Secure Ethernet networking Application-aware networking Traffic managemnt Multi-level OAMvirtual networking capabilities are augmented with offthe-shelf provisioning systems for automated addressmanagement and discovery, flexible bandwidth profiles,advanced traffic classes, and complete control over howcustomer traffic is transported across a carrier’s network.VideoAccessEthernet provides total flexibility in deployment,provisioning, and delivery of Ethernet services based onadvanced MEF-compliant and emerging IEEE-based802.1D/Q/ ah transport services. It provides the capabilityfor physical and virtual networking, automates addressmanagement and discovery, ensures flexible bandwidthprofiles and advanced traffic classes, and allows completecontrol over how customer traffic is transported across aservice provider’s network.Residing at the edge of the carrier’s network – betweencarrier’s and customer’s networks – T-Marc 3x0 useAccessEthernet to provide carrier-class service deliveryof converged services. Multiple customers and/ormultiple applications are aggregated onto redundantnetwork interfaces, with each service (customer and/or application) being provided its unique service quality.Services can be terminated and hosted by one of moreapplication service providers, allowing carriers completeflexibility on mapping offered services to different andevolving business models.This framework also provides a flexible evolution andphased migration to delivering SONET-like, circuit-orientedEthernet services based on PBT agreements, with anevolution to IEEE802.1Qay, PBB-TE. Circuit-oriented point-to-point VLANs andVLAN cross-connect topologies can be used to provideinteroperability and backward compatibility. Physical andDataVideoMulti-service UNIVoiceService DeliveryNetworkValue-addedServicesSignaled MPLS DomainH-VPLS and ServicesNetwork Unified operational framework Managed multi-service integration Multi-subscriber, multi-provider Secure Ethernet networking Application-aware networking Traffic managemnt Multi-level OAMVolPInternetVideoAccessMPLS extends H-VPLS or T-MPLS domains to thecustomer premises for expanded, integrated multi-servicenetworking. In cases where service providers want toextend the many benefits of H-VPLS and Pseudowires tocustomer premises equipment (CPE), AccessMPLS providesa purpose- built solution to map into existing MPLSbased networks in a transparent manner, while utilizing acommon set of rich management, provisioning and OAMtools.Residing at the edge of the carrier’s network – betweencarrier’s and customer’s networks – T-Marc 3x0 useAccessMPLS to provide carrier-class service deliveryof converged services. Multiple customers and/ormultiple applications are aggregated onto redundantnetwork interfaces, with each service (customer and/ orapplication) being provided its unique service quality.Services can be terminated and hosted by one of moreapplication service providers, allowing carriers completeflexibility on mapping offered services to different andevolving business models.This framework also provides a flexible evolution andphased migration to delivering SONET-like, circuit-orientedEthernet services based on T-MPLS agreements. PhysicalTELCO SYSTEMSTo learn more, visit Telco Systems at http://www.telco.com