CLUSTER NETWORK DEGRADED: CRC Errors Detected
Applies to
- ONTAP 9
- FAS / AFF systems
- Broadcom BES-53248 Cluster Switch
Issue
- CLUSTER NETWORK DEGRADED alerts on cluster port e0a of nodes 1,2,3,4 connected to switch 1.
[Node-01: vifmgr: callhome.clus.net.degraded:alert]: Call home for CLUSTER NETWORK DEGRADED: CRC Errors Detected - High CRC errors detected on port e0a node Node-01
[Node-02: vifmgr: callhome.clus.net.degraded:alert]: Call home for CLUSTER NETWORK DEGRADED: CRC Errors Detected - High CRC errors detected on port e0a node Node-02
ifstatoutput shows CRC errors:
RECEIVE
Total frames: 96528m | Frames/second: 7110 | Total bytes: 484t
Bytes/second: 35692k | Total errors: 33617k | Errors/minute: 149
Total discards: 0 | Discards/minute: 0 | Multi/broadcast: 35072k
Non-primary u/c: 0 | CRC errors: 33612k | Runt frames: 0
RECEIVE
Total frames: 181g | Frames/second: 13425 | Total bytes: 1281t
Bytes/second: 94839k | Total errors: 2837k | Errors/minute: 13
Total discards: 0 | Discards/minute: 0 | Multi/broadcast: 34917k
- Switch logs state an RX error on port 0/3.
(switch-sw1)#show interface counters
Port InOctets InUcastPkts InMcastPkts InBcastPkts InDropPkts Rx Error
--------- ---------------- ---------------- ---------------- ---------------- ---------------- ----------------
0/1 320472453420225 81458022930 686432 480451 6914 0
0/2 269864351312312 95015675213 686546 479365 7266 0
0/3 460585702841618 90372609823 685763 483814 664750 96081070 <---------
0/4 395263358211170 74120001967 686438 483028 10770 0
- Moved the connection to an different available port on the switch to mitigate the issue