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NetApp Knowledge Base

NIC port seeing CRC errors in ifstat

Views:
1,134
Visibility:
Public
Votes:
2
Category:
fas-systems
Specialty:
hw
Last Updated:

Applies to

  • FAS / AFF Systems
  • Networking Adapters

Issue

  • ifstat ONTAP command shows high CRC errors on affected port.

Example:

-- interface  e4a  (7 hours, 33 minutes, 13 seconds) --

RECEIVE
 Total frames:    10739k | Frames/second:     395  | Total bytes:     14537m
 Bytes/second:      534k | Total errors:     4947  | Errors/minute:      11 
 Total discards:      0  | Discards/minute:     0  | Multi/broadcast:   334k
 Non-primary u/c:     0  | CRC errors:       4921  | Runt frames:         0 
 Fragment:            0  | Long frames:         0  | Jabber:              0 
 No buffer:           0  | Xon:                 0  | Xoff:                0 
 Pause:               0  | Jumbo:            1645k | Noproto:             0 
 Error symbol:        0  | Illegal symbol:     26  | Bus overruns:        0 
 Queue drops:         0  | LRO segments:     8397k | LRO bytes:       14247m
 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 
  • The issue is cleared when changed the SFP in that port
  • EMS reports error below

Example:

[?] Mon Apr 26 19:51:11 JST [Node-02: vifmgr: vifmgr.cluscheck.crcerrors:alert]: Port e0a on node Node-02 is reporting a high number of observed CRC errors.

 

 
 
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