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jwill24's avatar
jwill24
Icon for New Contributor rankNew Contributor
7 years ago

Pairing GTH Transceivers with QSFP range extender

I am trying to connect the FPGA with a QSFP Range Extender from 10Gtek https://downloader.vip/rightmove/(CVT-OEO-Q/4S1C)

... basically the QSFP port from the FPGA goes into the range extender and the SFP ports from the extender can be collected at the destination.

​https://downloader.vip/kijiji/

In this setup I am seeing very inconsistent results

  1. Sometimes I am not able to do transfer across a link after reprogramming the FPGA
  2. Sometimes I am not able to do transfer across a link after system reboot. https://downloader.vip/quizlet/
  3. Sometimes a link which was not working for a while starts working.

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Only thing I would infer from all this is that the GTH Transceiver is not configured properly for this device.

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Please help with this issue

1 Reply

  • AndyN's avatar
    AndyN
    Icon for Occasional Contributor rankOccasional Contributor
    7 years ago

    Have you tried using the Transceiver Toolkit to tune the analogue properties of the link? If it starts/stops working over time, I'd think you probably have a thermal problem and your links are tuned too close to the edge of the eye (so will start to have issues as thing heat up / cool down).

    Hope that helps.

    Andy