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AFF A400 port errors on unused port with SFP

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Applies to

  • AFF A400
  • 10/25 Gb/s network adapter
  • Unused ethernet ports

Issue

  • Sysconfig -A Port shows link up or flapping with SFP but no cable inserted:

slot 0: 10G/25G Ethernet Controller CX5-Mezz
e0e MAC Address: d0:22:ef:97:00:0d (auto-25g_sr-fd-up)
SFP Vendor: AVAGO
SFP Part Number: AFBR-725SMZ-NA1
SFP Serial Number: AD2016G02TZ

EMS logs

vifmgr.port.monitor.failed: The "link_flapping" health check for port e0e (node node-01) has failed. The port is operating in a degraded state.
 
  • CRC errors can be reported by the port:
EMS
[node-01: vifmgr: vifmgr.cluscheck.crcerrors:alert]: Port e0f on node node-01 is reporting a high number of observed hardware errors, possibly CRC errors.
 
  •  ifstat

    ::> system node run -node <node> -command ifstat -a

RECEIVE
Total frames:        0  | Frames/second:       0  | Total bytes:         0
Bytes/second:        0  | Total errors:    66920  | Errors/minute:       0
Total discards:      0  | Discards/minute:     0  | Multi/broadcast:     0
Non-primary u/c:     0  | Errored frames:      0  | Unsupported Op:      0
CRC errors:      66918  | Runt frames:         0  | Fragment:        66914

 

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