Degraded Gigabit problem with GS1200-8

_Thomas__Thomas_ Member Posts: 3
edited April 24, 2019 5:48PM in Discussions
We have major problems with degraded speed negotiation multiple ports connected to a Intel I350 (igb). The ports are negotiated for 10 Mb/s only. The Linux system with 4.19 kernel shows following message for all the ports: malformed Tx packet detected and dropped, LVMMC:0xffffffff. The affected ports are all non POE ports. We never faced problems like this with other switches. All cables are high quality cables. Firmware of the switch is upgraded, we already searched for symptoms which might explain the error related to kernel/software drivers without any solution? What might be the reason? Further is it possible to see a logfile of the port status in the switch to see any cause of problems?



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