EMS Event」netif.tcp.conn.bad.checksum"を参照してください
環境
問題
- 次のEMSメッセージが表示されます。
[?] Mon Sep 26 02:09:05 +0900 [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 xx.xx.xx.xx and destination_address xx.xx.x.xx. - 不正なTCP chsumは、EMSメッセージのポートでもimcrementingです
例：
-- 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
Total discards: 0 | Discards/minute: 0 | Multi/broadcast: 819k
Non-primary u/c: 0 | CRC errors: 0 | Runt frames: 0
Fragment: 0 | Long frames: 0 | Jabber: 0
Length errors: 0 | No buffer: 0 | Xon: 0
Xoff: 0 | Pause: 0 | Jumbo: 0
Noproto: 0 | Error symbol: 0 | Illegal symbol: 0
Bus overruns: 0 | Queue drops: 0 | LRO segments: 423m
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
Lacp errors: 0 | Lacp PDU errors: 0
TRANSMIT
Total frames: 1953m | Frames/second: 562 | Total bytes: 2625g
Bytes/second: 755k | Total errors: 0 | Errors/minute: 0
Total discards: 0 | Queue overflow: 0 | Multi/broadcast: 116k
Collisions: 0 | Xon: 0 | Xoff: 0
Pause: 0 | Jumbo: 76941k | Cfg Up to Downs: 0
TSO non-TCP drop: 0 | Split hdr drop: 0 | Timeout: 0
TSO segments: 76944k | TSO bytes: 2500g | TSO6 segments: 0
TSO6 bytes: 0 | HW UDP cksums: 758 | HW UDP6 cksums: 0
HW TCP cksums: 282m | HW TCP6 cksums: 0 | Mcast v6 solicit: 0
Lagg drops: 0 | Lagg no buffer: 0 | Lagg no entries: 0
DEVICE
Mcast addresses: 2 | Rx MBuf Sz: 4096
LINK INFO
Speed: 10000M | Duplex: full | Flowcontrol: full
Media state: active | Up to downs: 0 | HW assist: 7711