LAN in errors
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Hi everyone, first of all sorry for any ignorance on my part of where/how to post or what to include. We are experiencing the first issue I've had to reach out here for some extra help. I'll try to include all details.
Problem: Continually incrementing errors on LAN interface inbound. Not seeing dropped packets for the most part unless we are doing some high volume of traffic. Adapter is Intel X520-DA1 (82599). No errors reported on downstream switchport where it's connected; only reported on pfSense LAN interface.
What I've tried so far:
- Changed optic on both ends and fiber
- Changed to a Twinax cable
- Rebooted pfSense and downstream switch
- Replaced Ethernet card with known working good
- Rebuilt system and tried fresh install
Any ideas? Thanks so much for any guidance!
EDIT: This is on pfSense CE 2.6.0 and not a recent upgrade. Issue only surfaced within the last week or so.
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Update: Used the two extra built-in LAN ports to set up a LAGG to the downstream switch and the issues disappeared. I guess this points to a possible issue with either BOTH cards I had on hand or with some component of server hardware related to the PCIe expansion slots.
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I trust you know some packet loss is normal with TCP. In fact, it's required for flow control to work.
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In 2.6 the ix driver reports a number of additional error types in the received errors counter.
Check the sysctl mactstats for more detailed breakdown.sysctl dev.ix.0.mac_statsSteve