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CRC errors reported on all cluster ports except one cluster port

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fas-systems
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HW
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Applies to

  • ONTAP 9
  • FAS/AFF
  • Cluster Network Switches

Issue

  • The following errors are reported in the event logs
[Node_1: vifmgr: vifmgr.cluscheck.hwerrors:alert]: Port e0c on node Node_1 is reporting a high number (at least 1 per 1000 packets) of observed hardware errors (CRC, length, alignment, dropped).
[Node_1: vifmgr: vifmgr.cluscheck.hwerrors:alert]: Port e0c on node Node_1 is reporting a high number (at least 1 per 1000 packets) of observed hardware errors (CRC, length, alignment, dropped).
[Node_1: vifmgr: callhome.clus.net.degraded:alert]: Call home for CLUSTER NETWORK DEGRADED: CRC Errors Detected - High CRC errors detected on port e0c node Node_1
  • CRC errors observed on cluster ports of all nodes

-- interface  e0a  (2 days, 23 hours, 43 minutes, 47 seconds) --

RECEIVE
Total frames:    33262k | Frames/second:     129  | Total bytes:     10800m
Bytes/second:    41824  | Total errors:      200  | Errors/minute:       0
Total discards:      0  | Discards/minute:     0  | Multi/broadcast:   249k
Non-primary u/c:     0  | CRC errors:        200  | Runt frames:         0
Fragment:            0  | Long frames:         0  | Jabber:              0

-- interface  e0c  (2 days, 23 hours, 43 minutes, 47 seconds) --

RECEIVE
Total frames:    35377k | Frames/second:     137  | Total bytes:     35822m
Bytes/second:      138k | Total errors:      587  | Errors/minute:       0
Total discards:      0  | Discards/minute:     0  | Multi/broadcast:   249k
Non-primary u/c:     0  | CRC errors:        587  | Runt frames:         0
Fragment:            0  | Long frames:         0  | Jabber:              0

  • No CRC errors found on cluster ports on one node:

-- interface  e0a  (2 days, 23 hours, 43 minutes, 31 seconds) --

RECEIVE
Total frames:    63411k | Frames/second:     246  | Total bytes:       180g
Bytes/second:      697k | Total errors:        0  | Errors/minute:       0
Total discards:      0  | Discards/minute:     0  | Multi/broadcast:   249k
Non-primary u/c:     0  | CRC errors:          0  | Runt frames:         0
Fragment:            0  | Long frames:         0  | Jabber:              0

  • From the switch logs it can be found that errors are reported on the switch port connected to the cluster port with no errors

(switch-1)#show interface Ethernet 0/1

Total Packets Received with MAC Errors......... 258519
Jabbers Received............................... 0
Fragments Received............................. 26
Undersize Received............................. 0
Alignment Errors Received...................... 0
FCS Errors Received............................ 258493
Overruns Received.............................. 0
URPF Discards.................................. 0

(switch-1)#show interface counters

Port              InOctets      InUcastPkts      InMcastPkts      InBcastPkts       InDropPkts         Rx Error
--------- ---------------- ---------------- ---------------- ---------------- ---------------- ----------------
0/1         10850251237305       3773573904           563050           457598                0           258520
0/2          8884225958797       2136588335           563047           441800                8                0

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