My new suspicion is that it has to do with LACPDUs and mismatched timers. It makes a lot of sense and could cause the LAG to flap.
Interestingly, the default in the Dell / FTOS is the "fast" timeout of 1 second, yet they recommend a slow timeout.
Though somehow switching to the slow timeout...
We have a pair of s4810 (OS 9.14) switches in a stack. (Core switches in an isolated layer 2 LAN)
A Synology SA3600 NAS server with an Intel XL710-QDA2 NIC, is connected via 802.3ad, via 2 x 40GbE SQFP's.
For many months now, the NAS connection drops for 1 second, every 3-90 hours. (Only...
After lots of hard work, we built a rackmounted Threadripper workstation with Thunderbolt connectivity (those were the 3 requirements we aimed to nail). In fact, I had hired a specialist company to help build it for us..... and we've still got problems, Houston.
The mobo is a Gigabyte TRX40...
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