TCP packet with bad checksum detected on port e0S
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- 2,094
- Visibility:
- Public
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- Category:
- aff-series
- Specialty:
- hw
- Last Updated:
- 6/11/2024, 4:33:29 PM
Applies to
- AFF A800, AFF C800, ASA A800, ASA C800
- ONTAP 9
- BMC firmware version 10.8
Issue
- TCP packet with bad checksum detected on port e0S after BMC upgrade to version 10.8
system event logoutput example:
::> system event log -event *netif.tcp.conn.bad.checksum*
7/16/2023 10:05:57 node-01 ERROR netif.tcp.conn.bad.checksum: TCP packet with bad checksum detected on port e0S. The packet arrived on connection with source address 10.0.2.1 and destination_address 10.0.2.4.
ifstat -aoutput eample:
::> system node run -node node_name -command ifstat e0S
-- interface e0S (18 days, 15 hours, 14 minutes, 59 seconds) --
RECEIVE
Total frames: 21976k | Frames/second: 14 | Total bytes: 2782m
Bytes/second: 1728 | Total errors: 0 | Errors/minute: 0
Total discards: 0 | Discards/minute: 0 | Multi/broadcast: 2625
Non-primary u/c: 0 | Errored frames: 0 | Unsupported Op: 0
(...)
LRO6 segments: 0 | LRO6 bytes: 0 | Bad UDP cksum: 0
Bad UDP6 cksum: 0 | Bad TCP cksum: 1662 | Bad TCP6 cksum: 0
Mcast v6 solicit: 0 | Lagg errors: 0 | Lacp errors: 0
...
