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在端口e0S上检测到校验和错误的TCP数据包

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适用场景

  • AFF A800
  • BMC固件版本10.8.
  • ONTAP 9.11.1P8.
  • ONTAP 9.11.1P10.

问题描述

  • BMC升级到版本10.8.后、端口e0S上检测到TCP数据包校验和错误
  • system event log 输出示例:

::> 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 -a 输出示例:

::> 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
...

 

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