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Ongoing FC_PORT_ERRORS_THRESHOLD_CROSSED events on NetApp-supplied Brocade switches

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Category:
fc-series
Specialty:
san
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Applies to

  • Brocade switch
  • G630
  • Dense Wavelenth Division Multiplexing (DWDM)

Issue

  • FC_PORT_ERRORS_THRESHOLD_CROSSED alerts received for Brocade switch ports.
  • Hosts connected to these switches are experiencing performance degradation. 
  • No errors reported on storage array connections.
  • errdump shows huge number of errors:
2026/02/08-17:23:16:632367 (GMT), [C5-1044], 7218/3814, CHASSIS, INFO, xxxx, Trunk performance impact on port (xx) due to high deskew value. [TRUNK_PERF:40 percent, Deskew:169], OID:0x43010880, SPOID:xxxx, c5_txxxksm.c, line: 9128, comp:emd, ltime:2026/02/08-17:23:16:631840
2026/02/02-09:14:56 (GMT), [C5-1044], 3135, CHASSIS, INFO, xxxx, Trunk performance impact on port (xx) due to high deskew value. [TRUNK_PERF:59 percent, Deskew:114]

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