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Cisco Bug: CSCua82871 - Sup2 IOFPGA and PLX PCIe Link Sees Intermittent, Correctable Errors

Last Modified

Mar 16, 2016

Products (1)

  • Cisco Nexus 7000 Series Switches

Known Affected Releases

1.0

Description (partial)

Symptom:
The PCIe link between the IOFPGA and the PLX PCIe switch intermittently sees correctable physical-layer errors (disparity errors, symbol-decode errors, and replay timeouts).

Conditions:
The errors occur only in IOFPGA revisions 1.B and earlier, which have the SEU Mitigation (SEM) IP logic enabled.  The errors occur more frequently at low-temperature and high-voltage conditions.  It has been observed that the errors occur only when the SEM IP logic is enabled and running.
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