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GEM

Network Impairment Emulator

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  • Overview
  • Benefits
  • Features
  • Specification
  • Documents
  • White Papers

Spirent Network Impairment Emulators enable users to accurately create the delays and impairments that occur over live production networks for validating and evaluating new products and technologies.

Spirent Ethernet Network Emulators are essential for testing multimedia products and services, storage networks, circuit emulation  services, Timing over Packet, disaster recovery, data center moves, mobile/wireless infrastructure, WAN and TCP acceleration, multi-play applications, and many other solutions.

Real-world testing with flexible impairment programming ensures a fully developed solution and an increase in quality of experience for the user.

Bring the realism of live network conditions into the lab to know for certain that your solutions will deliver the performance and quality of experience your customers expect.

Network diagram

    Benefits

    GEM Benefits

    • Enables validation, performance and interop testing of systems under real-world conditions with precise and reproducible results
    • Provides users with the confidence that systems will perform as expected on production networks 
    • Realistic problem replication for troubleshooting
    • Less risk and time-to-deploy for new products and services
    • Save money with reduced post-sale support costs achieved throughminimizing troubleshooting
    • Detailed and realistic results provide improved Quality of Experience and user satisfaction
    • Field programmable architecture protects investment
    • Quickly create a test bed that matches your real network by recording and replaying conditions found on the live network
    • Leverage thousands of industry-standard models and test suites

    Features

    GEM Features

    • Hardware-based architecture provides maximum accuracy and repeatability
    • 10GigE, GigE and 10/100Mbps, SONET, SDH, OTN, Fibre Channel, FC, CPRI interfaces at 100% line rate even with minimum size frames
    • Define up to 16 Network Profiles per interface for emulating different CoS or multiple paths
    • Ability to dynamically change impairment profile and chain impairments without data loss or test restart
    • Standards-based Network Impairment Models per TIA-921 and ITU-T G.1050, MEF-18, G.8261
    • Router Mode to connect up to 16 different IP subnets to a single interface
    • Multiprotocol support (SONET, SDH, OTN, Fibre Channel, CPRI, and Ethernet (10/100/1Gig/10Gig) on the same chassis

    Specification

    Interfaces

    10/100/1000, 1GbE, 10GbE, OC-192/48/12/3, 1G/2G/4G/8G/10G FC, OTN OTU1/OTU2, CPRI

    Specifications

    ITU-T G.1050 / TIA-921

    Impairments

    LOS / LOF SYNC, static delay, jitter delay (PDV), frame/packet drop (decimate) including selective drop, policing, bandwidth control (throttle), higher layer bit errors, modification, CRC corruption, IPv4 fragment, accumulate and burst

    Documents

    • CES and ToP Testing with Spirent Impairment Emulators DatasheetSpirent’s emulation solutions are ideal for vendors to test a wider range of Circuit Emulation Service and Timing over Packet tests.
    • Fibre Channel Network Emulators DatasheetSpirent Communications’ Fibre Channel Network Emulators are precision test instruments for 1, 2, 4, 8 or 10 Gigabit Fibre Channel testing.
    • GEM Network Playback Module for CES/TOP/MEF18 G.8261 DatasheetAccurately create the delays & impairments that occur over live production 10/100 Mbps, 1Gbps and 10Gbps Ethernet networks for validating/evaluating new products & technologies.
    • GEM TIA-921 ITU-G1050 DatasheetUse ITU-T G.1050/TIA-921 IP Network Models on Spirent GEM Ethernet Network Impairment Emulators to verify performance of multimedia solutions under real-world network conditions prior to deployment.
    • GEM Triple Play Testing with TIA DatasheetUse Spirent GEM Ethernet Network Impairment Emulators to verify performance of multimedia solutions under real world network conditions prior to deployment.
    • GEM-XGEM Ethernet Network and Impairment Emulators DatasheetAccurately create the delays and impairments that occur over live production 10/100 Mbps, 1Gbps and 10Gbps Ethernet Networks for validating and evaluating new products and technologies.
    • GEM/xGEM EOAM Testing DatasheetOnce strictly a LAN technology, Ethernet is now found in access, metro-area and wide-area networks because of its simplicity, range of bandwidth support and multi-point capability.
    • Spirent Path Delay Network Emulators SONET/SDH DatasheetSpirent's PD Network Emulators are precision test instruments which allow users to accurately simulate path layer delays and impairments that occur over diversely routed SONET and SDH Networks.
    • Spirent Signal Delay Network Emulators DG/OTU/CPRI DatasheetSpirent’s Signal Delay Network Emulator is a precision test instrument which allows users to accurately simulate network delays and impairments.
    • Validating FCoE Solutions with Nework Impairment Emulators DatasheetSpirent Network Impairment Emulators enable users to validate and evaluate new products and technologies by accurately emulating the delays and impairments that occur over live, or production, Ethernet networks.

    White Papers

    • Ensuring Performance & QoE with Network Impairment Emulation White PaperInformation management applications have progressed from an innovation to a competitive advantage to essential infrastructure for enterprises.
    • Evaluating, Selecting & Deploying WAN Acceleration Solutions White PaperThis white paper highlights WAN performance issues.
    • How to Validate Network Applications Before you DeployIf your company is like most organizations in today’s network-centric world, you need to ensure that your applications run properly over private and public Wide Area Networks (WANs).
    • Spirent Journal of Access and Edge PASS Test MethodologiesThis Spirent Catalog of Test Methodologies represents an element of the Spirent test ecosystem that helps answer the most critical Performance, Availability, Security and Scale Tests (PASS) test cases.
    • Spirent Journal of Cloud Application & Security Services PASS Test MethodologiesThis Spirent Catalog of Test Methodologies represents an element of the Spirent test ecosystem that helps answer the most critical Performance, Availability, Security and Scale Tests (PASS) test cases.
    • Spirent Journal of Cloud Infrastructure LAN/SAN Fabric & Virtual Server Access PASS Test MethodologiesThis Spirent Catalog of Test Methodologies represents an element of the Spirent test ecosystem that helps answer the most critical Performance, Availability, Security and Scale Tests (PASS) test cases.
    • Spirent Journal of Core Routing and Tunneling PASS Test MethodologiesThis Spirent Catalog of Test Methodologies represents an element of the Spirent test ecosystem that helps answer the most critical Performance, Availability, Security and Scale Tests (PASS) test cases.
    • Spirent Journal of Mobile Backhaul PASS Test MethodologiesThis Spirent Catalog of Test Methodologies represents an element of the Spirent test ecosystem that helps answer the most critical Performance, Availability, Security and Scale Tests (PASS) test cases.
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