ibdiagnet v2.13.0 legacy --ber_test default threshold
1e-12observed
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| Scope | The 10^-12 default belongs to --ber_test on SwitchX, ConnectX-3 and ConnectX-4 only. The manual sends later devices to --get_phy_info; set the BER type, FEC mode and limit for the installed links (Chapter 13.7). |
| Caveat | A legacy tool default, not an acceptance limit for current InfiniBand links. |
| As of | 2023-11 |
| Source | NVIDIA, ibdiagnet InfiniBand Fabric Diagnostic Tool User Manual v2.13.0, PDF exported November 20, 2023. · PDF page 7, Basic Commands, --ber_test and --ber_thresh |
| Review | checking…review by 2027-03-08 · standard cadence |
| Recorded changes | last 2026-09-16 · 2 revisions tracked |
| Claim id | default-fabric-ber-acceptance-threshold-per |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.