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NIC still sees CRC errors after SFP replacement

Last Updated:

Applies to

  • AFF A400
  • 10G/25G Ethernet ports e0g/e0h
  • SFP replacement
  • LC optical cable


  • Ports seen online in sysconfig -a
::> run -node <node_name> -command sysconfig -a
slot 0: 10G/25G Ethernet Controller CX5-Mezz
		e0g MAC Address:    d0:39:ea:xx:xx:xx(auto-10g_sr-fd-up)
		    SFP Vendor:         FINISAR CORP.
		    SFP Part Number:    FTLX8574D3BCL
		    SFP Serial Number:  xxx
		e0h MAC Address:    d0:39:ea:xx:xx:xx (auto-10g_sr-fd-up)
		    SFP Vendor:         FINISAR CORP.
		    SFP Part Number:    FTLX8574D3BCL
		    SFP Serial Number:  xxx
		Device Type:        CX5 PSID(NAP0000000007)
		Firmware Version:   16.26.4012
  • SFP on storage port has been recently replaced
  • ifstat shows increasing CRC errors on affected port even after SFP replacement
::> run -node <node_name> -command ifstat 

-- interface  e0g  (7 hours, 33 minutes, 13 seconds) --

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

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