About Guardian452

Guardian452 · 01-20-2026

I recently replaced a stack of switches with C9300s and encountered an interesting UDLD issue. After reviewing with seniors on my team, it seems it may have had something to do with the order of operations.Switches were uplinked via two 10G SR optics...

Guardian452 · 01-20-2026

Reviewing logs it was only UDLD errors. No BPDUs observed. Currently only Te1/1/1 is connected to the other side. This wasn't clear from my output above. They were previously port-channeled. This is OK now. No issue with UDLD as CSCwd64709 shows, th...

Guardian452 · 01-20-2026

Thanks Mark. I did review CSCvo46352, but had some doubts if this was the cause.Conditions for CSCwd01674 were not met; no switch was removed from the new (replacement) stack. Restarting the whole stack resolved the issue, so this tracks. Bingo! Cond...

Member Since	‎01-20-2026 10:18 AM
Date Last Visited	‎05-05-2026 11:24 AM
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C9300 UDLD Err-Disable After Stack Replacement

Re: C9300 UDLD Err-Disable After Stack Replacement

Re: C9300 UDLD Err-Disable After Stack Replacement