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synchronization error between hardware units inside an NVIDIA Spectrum ASIC (vendor measurement)

< 4 nsobserved

Value kindobserved — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range.
ScopeUnit-to-unit synchronization inside the switch ASIC. It is not NIC timestamping and not end-to-end PTP accuracy.
As of2022-09
SourceNVIDIA Technical Blog (Spectrum PTP) · Section discussing synchronized timestamps across Spectrum ASIC hardware units: errors smaller than 4 ns
Reviewchecking…review by 2027-04-16 · standard cadence
Recorded changeslast 2026-10-16 · 3 revisions tracked
Claim idinternal-asic-sync-error-spectrum-and-connectx

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