How to get more info about HwIfInDiscards in ethtool output?

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  • Updated 1 year ago
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"ethtool -S swp1" says that HwIfInDiscards counter is non-zero and growing.
What can be root cause? Is detailed explanation available for that?
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Gleb Shchavlev

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Posted 1 year ago

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Sergei Hanus

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I have once faced this issue. The reason was that port on switch was missing VLAN tag, which was configured on connected server. This caused switch to drop all frames, tagged with that vlan, thus increasing discard counter you mentioned.
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Eric Pulvino, Official Rep

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There are a lot of causes for this error, many will vary by platform. Recommend opening a support case to further troubleshoot your specific platform.