gpu clusters
2 articles
InfiniBand Fabric Health: Counters and Fault Isolation
A 2026 guide to InfiniBand fabric health: read-only topology discovery, port counter interpretation, GPU-cluster fault isolation, evidence-preserving resets and an incident worksheet.
October 12, 2026• 24 min read
infiniband fabric healthinfiniband troubleshootingfabric health check
RoCE Fabric Acceptance Testing: PFC, ECN and CNP Runbook
A 2026 RoCE fabric acceptance testing runbook for validating PFC, ECN, CNP feedback, buffer and discard counters, controlled load ladders, and evidence from every hop.
September 18, 2026• 24 min read
roce fabric acceptance testingroce validationpriority flow control