RAD ETX-202A Ether Access, dispositif de démarcation Ethernet opérateur / NULL/

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Vendeur: hs_connect ✉️ (88) 100%, Lieu où se trouve: Brunoy, FR, Lieu de livraison: WORLDWIDE, Numéro de l'objet: 134856123198 RAD ETX-202A Ether Access, dispositif de démarcation Ethernet opérateur / NULL/. Bonjour, je vous propose un en occasion mais en parfait était de marche. J'en ai deux pièces et peux vendre le lot pour 100€.

ETX-202A   Carrier   Ethernet   Demarcation Device

ETX-202A is a carrier  Ethernet  demarcation device owned and operated by the service provider and installed at the customer premises. The device is part of RAD’s EtherAccess® portfolio and features Carrier  Ethernet  attributes, including Ethernet  OAM  for proactive SLA  monitoring, quality of service (QoS) per Ethernet  flow, advanced traffic management capabilities, and powerfulbandwidth  profiles for differentiated services – all starting at the service handoff points. ETX-202A is equipped with two Ethernet  network  ports (copper or SFP-based interfaces), supporting link protection based on 802.3ad or dual homing for increased service resiliency. The fourEthernet  subscriber ports use copper or SFP-based interfaces. The SFP-based Ethernet  ports accommodate a wide range of Fast Ethernet  and Gigabit Ethernet  SFP  transceivers, allowing service providers to seamlessly connect customers located at different distances from the device.

RAD ETX-202A FLEXIBLE TRAFFIC MAPPING Traffic is mapped to the Ethernet  flows (EVCs) using very flexible classification criteria that can be combined, for example: • Port-based (All-to-one bundling) • VLAN  + VLAN  priority • VLAN  + IP  precedence • VLAN  + DSCP • Ether Type • Untagged. More classification criteria and combinations can be found in the user manual.

HIERARCHICAL SCHEDULING AND SHAPING PER FLOW WITH RAD ETX-202A Every flow has its own queues and scheduler. ETX-202A supports up to 270 services, and a total of 30 queue blocks per network  port . Each queue block  is a group of eight queues per CoS . Each flow can be bound to each queue block . ETX-202AQOS Different service types require different levels of QoS  to be provided end-to-end. QoS  can be defined per subscriber as well as per service. QoS  has three aspects: rate limitation, traffic shaping, and traffic prioritization. Traffic policing is applied per flow or group of flows, and operates according to the dual token bucket mechanism based on user-configurable CIR  + CBS and EIR + EBS. Traffic can be limited to the line rate or the data rate. For prioritizing user traffic, ETX-202A maps user traffic to eight separate queues. Each can be configured as strict priority queues or weighted fair queues (WFQ). The queues handle traffic with different service demands, such as real-time traffic, premium data, or best-effort data. The device uses the WRED policy to ensure that queues are not congested and high-priority traffic is not dropped. ETHERNET  OAM Ethernet  OAM  is one of the important tools that has upgraded Ethernet  technology to carrier  Ethernet  class. It enables providers to deliver ‘SONET/SDH-like’ quality over packet-switched networks. ETX-202A implements the full suite of Ethernet  OAM  standards, which can be monitored by performance monitoring systems such as RADview or a third-party tool. The RAD ETX-202A provides these types of Ethernet  OAM: • Single-segment (link) OAM  according to IEEE  802.3-2005 (formerly 802.3ah) for remote management and fault indication, including remote loopback , dying gasp, and MIB  parameter retrieval • End-to-end connectivity OAM  based on IEEE  802.1ag that enables Ethernet  service providers to monitor their services proactively and guarantee that customers receive the contracted SLA • End-to-end service and performance monitoring based on ITU-T Y.1731 . Fault monitoring and end-to-end performance measurement include frame delay, frame delay variation, frame loss and availability. NETWORK  INTERFACE  REDUNDANCYOF RAD ETX-202A Two redundancy modes can be applied: • Link aggregation (LAG) based on 802.3ad • Dual homing (1:1), allowing ETX-202A to be connected to two different upstream devices. TYPICAL RAD ETX-202A APPLICATIONS ETX-202A is used in the following MEF-defined applications: • Ethernet  Virtual Private Line (EVPL) – Site-to-site connectivity over shared bandwidth  with service multiplexing (see Figure 1) • Ethernet  Private Line (EPL) – Site-to-site connectivity over dedicated bandwidth  without service multiplexing (see Figure 2). LAYER-2/ LAYER-3 LOOPBACK  WITH MAC  AND IP ADDRESS  SWAPPING Layer-2 and/or layer-3 network  integrity can be tested by a non-disruptive loopback  performed per flow, with swapping of MAC address  and optionally IP address . When the loopback  is activated, ETX-202A exchanges the source and destination MAC/IP addresses of the incoming packets. This loopback  passes through Ethernet  bridges (MAC address) and routers (IP address). ETX-202A L2CP HANDLING ETX-202A can be configured to pass through Layer-2 control frames (including other vendors’ L2CP frames) across the network, to peer-supported protocols (802.3ah), or to discard the L2CP frames. FAULT PROPAGATION The unit provides a user-configurable fault propagation mechanism. When a link failure is detected at the network  port, ETX-202A optionally shuts down a user port  until the network  link is restored. The fault propagation mechanism enables routers and switches  connected to both ends of the link to reroute the traffic to the redundancy path.

DYING GASP FEATURE OF RAD ETX-202A Units equipped with AC  power supply report power failures to defined network  management stations by sending traps, thus enabling the unit to properly disconnect from the network . MANAGEMENT The unit can be managed using the following ports and applications: • Local management via an ASCII  terminal connected to the RS-232  port • Remote inband management via user or network  ports routed  via separate VLANs , Telnet , or RADview, RAD’s SNMP-based management system • Out-of-band management via a dedicated management port . ETX-202A COMMAND LINE INTERFACE Databases and scripts of commonly used commands can be easily created and applied to multiple units using command line interface . SECURITY The following security protocols are provided by ETX-202A to ensure client server communication privacy and correct user authentication: • SNMPv3 • RADIUS  (client authentication  only) • SSH for Secure Shell communication session. JUMBO FRAMES AND EGRESS MTU The unit supports large frames of up to 12 Kbytes. The egress MTU  can be defined per port  (UNI/NNI). DHCP  IP address , IP  mask, and default gateway  can be automatically obtained using DHCP.

Key points to remember about the ETX-202A include: • Carrier  Ethernet  demarcation device delivering business services over fiber infrastructure • MEF  certified, supporting Ethernet  Private Line (EPL) and Ethernet  Virtual Private Line (EVPL) services with flexible mapping of user traffic into Ethernet  flows • Robust bandwidth  control mechanism and Service Level Agreement (SLA) monitoring per Ethernet  flow starting at customer premises • Complete Ethernet  OAM  solution based on IEEE  802.3-2005 (formerly 802.3ah), IEEE  802.1ag, and ITU-T Y.1731  for Opex reductions • Network  link protection based on 802.3ad or dual homing for increased service resiliency

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