Fusion JMEP is a powerful micro Ethernet probe for Ethernet and IP performance assurance.


The VIAVI Fusion JMEP smart SFP is a third-generation, one Gigabit Ethernet smart SFP transceiver that reduces the need for additional network test instrumentation. A third-generation transceiver, or JMEP3, seamlessly deploys inline into existing network devices. They provide network operators and service providers with remote test points that enable performance-assured service delivery and increase the value of existing network infrastructure.


  • Simple to use, easy to deploy in existing network SFP ports
  • Turns network ports into service-assurance tools, enabling Ethernet operation, administration, and maintenance (OAM) for any 1 Gigabit Ethernet network
  • Simplifies test and troubleshooting procedures to reduce equipment upgrades, truck rolls, and mean time to repair (MTTR)
  • Compatible with the VIAVI T-BERD®/MTS test portfolio and the and award-winning Fusion EtherASSURE™ centralized test solutions
  • Monitors across mobile-backhaul networks without additional instrumentation


  • Turn up, test and troubleshoot, and monitor key network performance in mobile backhaul, business services, and cloud networking services.
  • Instrument network demarcation points using Fusion JMEP SFP probes, isolating network boundaries, without deploying additional network devices or consuming additional space and power.
  • Add consistent, end-to-end standard based test and monitoring to any network device, without taxing network performance.

Key Features

  •  Fully compatible with RFC 2544 and Y.1564 test methodologies
  • Activates test loopbacks (L2/L3)
  • Monitors inline performance using Y.1731/
  • TWAMP-Light (RFC 5357)
  • Measures throughput, availability, frame loss, frame delay, and frame delay variation
  • Enables OAM 802.1ag for fault isolation

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