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Increasing CRC errors on an Ethernet port

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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

ONTAP 9

Issue

  • ONTAP reports the following message in event logs:

Thu Jul 08 00:17:37 PDT [node1: vifmgr: vifmgr.cluscheck.crcerrors:alert]: Port e0d on node node1 is reporting a high number of observed hardware errors, possibly CRC errors.

  • Ifstat output shows the Fragment error counters increasing.

cluster1::> system node run node1 -command ifstat e0d

RECEIVE
 Total frames:     2050k | Frames/second:       5  | Total bytes:       427m
 Bytes/second:     1033  | Total errors:     1185  | Errors/minute:       0
 Total discards:      0  | Discards/minute:     0  | Multi/broadcast:   599k
 Non-primary u/c:     0  | Errored frames:      0  | Unsupported Op:      0
 CRC errors:       1185  | Runt frames:         0  | Fragment:            0
 Long frames:         0  | Jabber:              0  | Length errors:       0
 Alignment errors:    0  | No buffer:           0  | Pause:               0
 Jumbo:               5  | Error symbol:        0  | Bus overruns:        0
 Queue drops:         0  | LRO segments:     1391k | LRO bytes:         367m
 LRO6 segments:       0  | LRO6 bytes:          0  | Bad UDP cksum:       0
 Bad UDP6 cksum:      0  | Bad TCP cksum:       0  | Bad TCP6 cksum:      0
 Mcast v6 solicit:    0  | Lagg errors:        0  | Lacp errors:         0

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