Hi Excel, Could you collect the following outputs, replacing the placeholders with your device and port?
mst status -v mget_temp -d <mst-device> -v mlxlink -d <mst-device> -p <port> -m Best regards, Jerome De : [email protected] <[email protected]> de la part de Excel Sebastianus via lists.fd.io <[email protected]> Date : dimanche, 4 octobre 2026 à 17:28 À : [email protected] <[email protected]> Objet : Re: [vpp-dev] DPDK TX-Failure on CQSFP2 During Low Traffic Hi Benoit and Jerome, I would like to provide an update based on the latest observation from the client side. The device had been running for several days without any TX-drop/TX-Failure. However, the issue appeared again after one of the AC units in the server room was turned off. The device was then rebooted, but the TX-drop issue was still present after the reboot. After that, a portable AC unit was installed and placed in front of the rack. Interestingly, after the additional cooling was provided, the TX-drop stopped occurring and the counter has not increased again so far. Based on this observation, we are wondering whether the ambient temperature or thermal condition around the rack/NIC could be a contributing factor. However, we understand that this is only a correlation at this point and cannot yet be considered the root cause. We will continue monitoring the device and will also collect the information you recommended earlier: * VPP: show version, show dpdk version, show hard, show int, and show err * Host: dmesg, ethtool -S <netdev>, and devlink health show pci/<BDF> reporter tx * NIC/link: mlxlink -d <mst-device> -p <port> -c Do you think the behavior described above could be related to a thermal condition of the ConnectX-5 NIC, PCIe subsystem, or another hardware component? Are there any specific temperature or thermal-related parameters that you would recommend checking on the NIC or host? Thank you for your continued help. Best regards, Excel
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