CFBC-2788：AFF A800、AFF C800、ASA A800、またはASA C800のシステムでe0S内部ポートのTCPチェックサムエラーが報告されることがある
問題
On AFF A800, AFF C800, ASA A800 or ASA C800 all-flash storage systems running with BMC firmware version 10.8,ONTAP might log "netif.tcp.conn.bad.checksum:error" events for the e0S internal port.
The following are examples of the event message:netif.tcp.conn.bad.checksum: TCP packet with bad checksum detected on port e0S. The packet arrived on connection with source address 192.0.2.81 and destination_address 192.0.2.84
ornetif.tcp.conn.bad.checksum: TCP packet with bad checksum detected on port e0S. The packet arrived on connection with source address 192.0.2.82 and destination_address 192.0.2.85
The following is an example of nodeshell "ifstat -a" output showing the "Bad TCP cksum" counter:[-- interface e0S (19 days, 2 hours, 9 minutes, 10 seconds) --
RECEIVETotal frames: 18913k | Frames/second: 13 | Total bytes: 1724m Bytes/second: 1278 | Total errors: 0 | Errors/minute: 0 Total discards: 0 | Discards/minute: 0 | Multi/broadcast: 2082 Non-primary u/c: 0 | Errored frames: 0 | Unsupported Op: 0 CRC errors: 0 | Runt frames: 0 | Fragment: 0 Long frames: 0 | Jabber: 0 | Length errors: 0 Alignment errors: 0 | No buffer: 0 | Xon: 0 Xoff: 0 | Jumbo: 0 | Noproto: 0 Error symbol: 0 | Illegal symbol: 0 | Bus overruns: 0 Queue drops: 0 | LRO segments: 0 | LRO bytes: 0 LRO6 segments: 0 | LRO6 bytes: 0 | Bad UDP cksum: 0 Bad UDP6 cksum: 0 | Bad TCP cksum: 1429 | Bad TCP6 cksum: 0 <<<<<<< Mcast v6 solicit: 0 | Lagg errors: 0 | Lacp errors: 0 Lacp PDU errors: 0]