vifmgr reporting CRC errors on multiple interfaces
Applies to
- ONTAP 9
- FAS / AFF Systems
- CRC errors reporting on multiple ports
Issue
- Multiple interfaces report CRC errors.
Cluster::> event log show -message-type *crc*
Mon May 25 09:05:14 CEST [node01: vifmgr: vifmgr.cluscheck.crcerrors:alert]: Port e0e on node node01 is reporting a high number of observed hardware errors, possibly CRC errors.
Mon May 25 09:05:14 CEST [node01: vifmgr: vifmgr.cluscheck.crcerrors:alert]: Port e0f on node node01 is reporting a high number of observed hardware errors, possibly CRC errors.
Mon May 25 09:55:14 CEST [node01: vifmgr: vifmgr.cluscheck.crcerrors:alert]: Port e0h on node node01 is reporting a high number of observed hardware errors, possibly CRC errors.
- ifstat increases the CRC errors counter.
Cluster::> node run node01 ifstat e0h
-- interface e0h (5 days, 12 hours, 52 minutes, 9 seconds) --
RECEIVE
Total frames: 1534m | Frames/second: 3208 | Total bytes: 2236g
Bytes/second: 4674k | Total errors: 845 | Errors/minute: 0
Total discards: 0 | Discards/minute: 0 | Multi/broadcast: 31966k
Non-primary u/c: 0 | CRC errors: 843 | Runt frames: 0
Long frames: 2 | Length errors: 101 | Alignment errors: 0
No buffer: 0 | Pause: 0 | Jumbo: 179m
Noproto: 0 | Bus overruns: 0 | LRO segments: 14947m
LRO bytes: 2012g | 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 | Lagg errors: 0
Lacp errors: 0 | Lacp PDU errors: 0
- There may be link flapping on the affected ports:
Wed Jan 24 12:46:43 0100 [node01: mgmt_port_link_status_poll: netif.linkDown:info]: Ethernet e0e: Link down, check cable.
Wed Jan 24 12:46:43 0100 [node01: intr: net.ifgrp.lacp.link.inactive:error]: ifgrp a0a, port e0e has transitioned to an inactive state. The interface group is in a degraded state.
Wed Jan 24 12:46:43 0100 [node01: vifmgr: vifmgr.portdown:notice]: A link down event was received on node node01, port e0e.
Wed Jan 24 12:46:44 0100 [node01: mgmt_port_link_status_poll: netif.linkUp:info]: Ethernet e0e: Link up.
Wed Jan 24 12:46:44 0100 [node01: vifmgr: vifmgr.portup:notice]: A link up event was received on node node01, port e0e.