ETX-205A - CB Networks

Where to buy > Product page >http://www.CBNETWORKS.fr - E-Mail: sales@cbnetworks.fr - Tel: 33 (0)1 77 55 03 00Data SheetETX-205ACarrier Ethernet Demarcation Device• Flow-based traffic management with H-QOS per EVC for SLA enforcement atcustomer premises, enabling MEF-certified E-LINE and E-LAN services• Ethernet OAM and performance monitoring at wire speed, for reliable and accurateSLA monitoring, enabling efficient diagnostics and troubleshooting• Enhanced RFC-2544 analyzer for SLA verification, ensuring customer satisfactionimmediately after turn-up• Synchronous Ethernet and IEEE-1588v2 PTP, seamlessly bridging synchronizationdomains• Multirate FE/GbE combo ports and integrated E1/T1 ports allow flexible serviceoffering in one unit for capex and opex savingsThe ETX-205A Carrier Ethernetdemarcation device offers RAD’s ServiceAssured Access solution, deliveringSLA-based services to business customersas well as mobile cell-sites, offering acombination of Ethernet and PDH services.Its ability to simultaneously act as a CPEand participate in packet-based accessrings makes it an asset for providerslooking for a cost-effective and reliableway to serve their customers. Carriers canalso merge PDH-based 2G and 3G NodeBswith Ethernet-based 3G and 4G/LTEeNodeBs in a converged packet network,by using ETX-205A’s Ethernet and PDHinterfaces and its timing capabilities.ETX-205A transports up to five Gbps ofuser traffic while ensuring SDH/SONET-likeperformance and Five Nines reliability.All ETX-205A units are equipped withSFP/copper combo Ethernet ports,enabling flexible mixture of fiber optic andcopper interfaces in one device. The SFPports accommodate a wide range of FastEthernet and Gigabit Ethernet SFPtransceivers, allowing service providers toseamlessly connect customers located atdifferent distances from the device.MARKET SEGMENTS ANDAPPLICATIONSETX-205A is ideal for carriers, serviceproviders, and wholesale providers seekingto offer SLA-based Ethernet services aswell as pseudowire services to businesscustomers and mobile backhaulingapplications.ETX-205A can be used as an Ethernetdemarcation device to separate theservice provider network, access providernetwork, and the customer network.Additionally it can act as a mobiledemarcation device, installed at theoperator tower and controller sitesequipped with Ethernet and PDH ports,connecting the 2G/3G/4G/LTE NodeB oreNodeB to the packet network, providingsophisticated synchronization and trafficmanagement. In either case it deliversproactive service monitoring and easyfault localization for Ethernet andpseudowire services throughout the entirenetwork (see Figure 1).ETHERNETClassificationTraffic is mapped to multiple Ethernetflows using flexible classification criteriabased on incoming port, VLAN ID, VLANpriority, IP precedence, DSCP, Ethertype,and IP/MAC source/destination address.VLAN-tagged and untagged traffic can beclassified.Layer-2 Control ProtocolsThe device can be configured to passthrough Layer-2 control frames (withoptional MAC change) to peer supportedprotocols, or to discard the L2CP frames.ForwardingEthernet flows are used to establishE-LINE services and can be attached toLayer-2 switching instances for E-LAN andE-Tree services.The layer-2 switch offers multipleVLAN-aware or VLAN-unaware forwardinginstances, limiting the MAC learning perswitching instance while limiting the totalamount of multicast and broadcast traffic.Furthermore, ETX-205A supports L2CPwith MAC change over the bridge.Traffic Management/QoSDifferent service types require differentlevels of QoS to be provided end-to-end.QoS can be defined per subscriber as wellas per service. QoS has three aspects: ratelimitation, traffic shaping, and trafficprioritization.Traffic policing is applied per flow or groupof flows, and operates according to the

http://www.CBNETWORKS.fr - E-Mail: sales@cbnetworks.fr - Tel: 33 (0)1 77 55 03 00ETX-2Carrier Ethernet Demarcation Devicedual token bucket mechanism based onuser-configurable CIR + CBS and EIR + EBS.Traffic can be limited to the line rate orthe data rate.Flows are mapped to egress queue blocks,each containing eight queues with WREDcongestion control, weighted fair queue(WFQ) scheduler, and rate shaper.With up to 30 shaped queue blocks perport, ETX-205A offers a superior H-QoSmodel enabling mix and match of multiplecustomers with differentiated serviceswhile ensuring the desired SLA percustomer and service under any condition.RESILIENCYETX-205A offers fast protection forvirtually any kind of failure and in anylinear, ring, or dual-homed topology.Link ProtectionETX-205A offers 802.3ad link aggregation(LAG), providing 1:1 link protection withLink Aggregation Control Protocol (LACP)support.Ethernet Ring ProtectionETX-205A provides a logical ring (per ITU-TG.8032v2) that protects against link andApplicationsnode failures. The ring delivers sub 50 msprotection for Ethernet traffic.Ethernet Path ProtectionETX-205A applies standard ITU-T G.8031Ethernet Linear Protection switching forfast protection of one or more EVCs fromend to end. The standard implementationensures interoperability with third-partydevices.E1/T1 PSEUDOWIREETX-205A provides E1/T1 pseudowire (PW)services with 4 or 8 integrated interfaces.The PW services can be encapsulatedusing:• CESoPSN – CES (Circuit EmulationServices) over PSN, for framed E1/T1traffic, per IETF RFC 5086• SAToP – Structure-Agnostic TDM overPacket, for unframed E1/T1 traffic, perIETF RFC 4553.The encapsulated PW connections can betransmitted over IP networks or Layer-2networks with UDP/IP or MEF-8encapsulation.Channel-associated signaling (CAS) issupported in PWs with CESoPSNencapsulation over UDP/IP PSN, enablingPBX connectivity.The quality of service prioritizationtechnique for E1/T1 PW differs accordingto the transport network type. With MEF-8encapsulation, priority is marked byLayer-2 p-bit; with UDP/IP encapsulation,priority is set according to ToS/DSCP bits.Transmit Clock SourceThe E1/T1 transmit clock source can beone of the following:• adaptive – Clock is derived from theincoming rate of PW packets• loopback –Clock is retrieved fromthe port's incoming (Rx) data• internal/domain – Clock is provided bysystem internal oscillator, which canbe synched to SyncE or PTP whenavailable.MONITORING AND DIAGNOSTICSFeaturing ultra-fast, hardware-poweredprocessing, ETX-205A performsmonitoring and diagnostics at high scaleand with maximum precision. This ensuresflow-level fault management andperformance monitoring, accurate SLAreports, Layer-2 and 3 loopbacks atwire-speed, and fast detection of failuresfor fast protection.Aggregation SiteSTM-1/OC-3cTransport NetworkCellular SiteRNC/aGWGbEGbE/FESTM-1/OC-3cBSC/RNCETX-5300A/ETX-220AGbENMSETX-205A4/8xE1/T1Enb/IPNBHeadquartersEthernet/MPLSTransport Network1GbEG.8032v2 ringBTS/Node BGbEPEPERemote OfficeMarketingGbE/FEGbE/FEGbE/FEETX-205AFinanceFinance8xE1/T1ETX-205A4xE1/T1PBXPBXTimingSLA AssuranceEnhanced Traffic ManagementPerformance ManagementResiliencyFigure 1. Ethernet Demarcation Device with Mobile Backhauling

http://www.CBNETWORKS.fr - E-Mail: sales@cbnetworks.fr - Tel: 33 (0)1 77 55 03 00Data SheetEthernet OAMETX-205A offers comprehensive OAMtools for SLA assurance and fault isolation,including:• Single-segment (link) OAM accordingto IEEE 802.3-2005 for remotemanagement and fault indication,including remote loopback and dyinggasp with SNMP trap. Active andpassive modes are supported.• End-to-end connectivity OAM based onIEEE 802.1ag for proactive Ethernetservice monitoring, guaranteeing thatcustomers receive the contracted SLA• Service level and performancemonitoring based on ITU-T Y.1731.Fault monitoring and end-to-endperformance measurement includedelay, delay variation, frame loss (realtraffic and synthetic), and availability• Accurate one-way delay measurementbased on PTP time stamping andhardware-based OAM.Service Activation TestThe device provides a built-in RFC-2544wire-speed traffic generator and analyzerfor unidirectional and bidirectional testingof throughput, latency, and frame loss.Based on standard OAM messages, thetests can be simultaneously performedover multiple flows, at the EVC.CoS level.Loopback TestsLayer-2 and/or layer-3 network integritycan be tested by a non-intrusive loopbackperformed per flow, with swapping ofMAC and IP address. This loopback can beconfigured to remain active afterETX-205A is reset.PW OAMWhen equipped with E1/T1 interfaces,ETX-205A offers the following OAM forpseudowire services:• Connectivity verification.• PW parameter validation• Delay measurements with 1 µsecresolution.TIMING AND SYNCHRONIZATIONETX-205A implements the RAD SyncTopsynchronization suite, allowing mobilebackhauling of 2G, 3G and 4G/LTE. Thedevice combines Synchronous Ethernet(SyncE) per ITU-T G.8261-G.8264 withIEEE 1588v2 Precision Time Protocol (slavefunctionality) for cost-effectivesynchronization of frequency and phase. Italso supports Transparent Clock (TC) withhardware-based time stamping.Primary/secondary clock selection isbacked up by a stratum 3/3E holdoverlocal oscillator.SMART SFPSIntegrated management of MiRICi smartSFPs provides TDM (E1/T1/E3/T3/OC-3/STM-1) connectivity over PDH orSDH legacy networks. Integratedmanagement of MiTOP smart SFPsprovides PDH over packet PWE services.ETX-205A supports configuration andstatistic collection for the smart SFP port.MANAGEMENT AND SECURITYETX-205A can be managed locally via anRS-232 port or out-of-band via adedicated Ethernet port. It can also bemanaged remotely through its inbandmanagement channel.Management is achieved via aneasy-to-use Command Line Interface (CLI)that also includes a user-configurablelogin banner and context-sensitive help.Additionally, an SNMP-based managementsystem can be used.Management security is achieved withSNMPv1/2/3, RADIUS (clientauthentication), TACACS+ (clientauthentication, authorization, andaccounting), SSH, and SFTP. AccessControl Lists (ACL) can also be used toflexibly filter and mark managementtraffic, enabling service providers tomaintain network security by droppingunwanted packets.Zero Touch ProvisioningIP address, latest software version, andconfiguration files can be automaticallyobtained using standard DHCP clientfunctionality. This enables quick andreliable setup as well as configurationconsistency when nodes must bereplaced.SpecificationsCAPACITYMax. Frame Size12,288 bytesETHERNET INTERFACESNumber of PortsUp to 2 network ports (redundancy)Up to 5 user portsTypeSFP/copper combo port:SFP devices:Fast Ethernet (100BaseFx, 100BaseLX10,100BaseBx10, 100BaseT)Gigabit Ethernet (1000BaseSx,1000BaseLX10, 1000BaseBx10,1000BaseT)Copper: 10/100/1000BaseT (built-in)ConnectorSFP slot or RJ-45E1/T1 INTERFACES(relevant only for E1T1 ordering options)Number of Ports4 or 8ComplianceE1: G.703, G.732N, G.732ST1: ANSI T1.101, ANSI T1.403Data RateE1:2.048 MbpsT1: 1.544 MbpsLine CodingE1:HDB3T1: B8ZSFramingE1: Framed (G.732N with or without CRC)Framed with CAS (G.732S with orwithout CRC)UnframedT1: Unframed or ESFImpedanceE1: 120Ω, balanced75Ω, unbalanced (via adapter cable)T1: 100Ω, balancedConnectorElectrical, RJ-45