EMS 事件 "netif.tcp.conn.bad.checksum"
适用于
- ONTAP 9.11.1 及更高版本
- 传输控制协议 (TCP)
- 互联网协议 (IP)
- 网络连接
问题
- 多个
netif.tcp.conn.bad.checksum:error事件会显示不同的源地址和目标地址：
[node01: kernel: netif.tcp.conn.bad.checksum:error]: TCP packet with bad checksum detected on port e0c. The packet arrived on connection with source address 10.0.0.10 and destination_address 10.0.0.1[node01: kernel: netif.tcp.conn.bad.checksum:error]: TCP packet with bad checksum detected on port e0c. The packet arrived on connection with source address 10.0.0.11 and destination_address 10.0.0.1[node01: kernel: netif.tcp.conn.bad.checksum:error]: TCP packet with bad checksum detected on port e0c. The packet arrived on connection with source address 10.0.0.12 and destination_address 10.0.0.2[node01: kernel: netif.tcp.conn.bad.checksum:error]: TCP packet with bad checksum detected on port e0c. The packet arrived on connection with source address 10.0.0.10 and destination_address 10.0.0.2<LR d="10Oct2025 04:20:09" n="node-01" t="1760037609" id="1749258895/33018" p="3" s="Ok" o="kernel" vf="" type="0" seq="270937">
<netif_tcp_conn_bad_checksum_1
local_port="e0f"
source_address="10.63.255.1X"
destination_address="10.63.255.2X"/>
注：源地址通常是客户端地址。目的地址是节点的网络接口（LIF）地址
Bad TCP cksum也在节点::> system node run -node node_name -command ifstat port_name的 ifstats 中的端口上递增：
-- interface e0c (40 days, 5 hours, 34 minutes, 37 seconds) --
RECEIVE
Total frames: 2047m | Frames/second: 589 | Total bytes: 2625g
Bytes/second: 755k | Total errors: 0 | Errors/minute: 0
...
LRO bytes: 2527g | LRO6 segments: 0 | LRO6 bytes: 0
Bad UDP cksum: 0 | Bad UDP6 cksum: 0 | Bad TCP cksum: 21
Bad TCP6 cksum: 0 | Mcast v6 solicit: 0 | Lagg errors: 0
...
- 在
CRC errors中未报告ifstat - 所有接口（存储、交换机、主机）均已设置正确的 MTU
- NETSTAT_S.TXT 报告 tcp 校验和错误：
---- Default IPSpace ----tcp:Node#01: 290056 discarded for bad checksums