Почему было много повторной передачи FIN (TCP / IP)? - PullRequest
0 голосов
/ 05 марта 2020
  21088 2020-03-02 21:59:27.815879    10.9.180.89           161.117.97.14         TCP      76     41818 → 80 [SYN] Seq=0 Win=65535 Len=0 MSS=1370 SACK_PERM=1 TSval=1656722322 TSecr=0 WS=512
  21092 2020-03-02 21:59:27.903661    161.117.97.14         10.9.180.89           TCP      68     80 → 41818 [SYN, ACK] Seq=0 Ack=1 Win=65535 Len=0 MSS=1400 WS=512 SACK_PERM=1
  21093 2020-03-02 21:59:27.904154    10.9.180.89           161.117.97.14         TCP      56     41818 → 80 [ACK] Seq=1 Ack=1 Win=65536 Len=0
  21095 2020-03-02 21:59:27.904575    10.9.180.89           161.117.97.14         HTTP     463    GET /gslb/?ver=4.0&type=wap&conpt=hjgli%60%2Cir%60%2Cksii&uuid=0&list=app.chat.global.xiaomi.net%2Cresolver.msg.global.xiaomi.net&countrycode=ID&sdkver=38&osver=29&os=CPH2025%3A1582874908&mi=0&key=51b24071b1c8601c3bee862b47fe0d8f HTTP/1.1 
  21099 2020-03-02 21:59:28.046629    161.117.97.14         10.9.180.89           TCP      56     80 → 41818 [ACK] Seq=1 Ack=408 Win=1574912 Len=0
  21101 2020-03-02 21:59:28.107925    161.117.97.14         10.9.180.89           TCP      1426   80 → 41818 [ACK] Seq=1 Ack=408 Win=1574912 Len=1370 [TCP segment of a reassembled PDU]
  21102 2020-03-02 21:59:28.108332    10.9.180.89           161.117.97.14         TCP      56     41818 → 80 [ACK] Seq=408 Ack=1371 Win=68608 Len=0
  21104 2020-03-02 21:59:28.107937    161.117.97.14         10.9.180.89           HTTP     177    HTTP/1.1 200 OK  (application/json)
  21105 2020-03-02 21:59:28.108618    10.9.180.89           161.117.97.14         TCP      56     41818 → 80 [ACK] Seq=408 Ack=1492 Win=68608 Len=0
  21296 2020-03-02 21:59:43.156135    161.117.97.14         10.9.180.89           TCP      56     80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21298 2020-03-02 21:59:43.267491    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21300 2020-03-02 21:59:43.955871    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21304 2020-03-02 21:59:45.072290    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21315 2020-03-02 21:59:47.459570    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21319 2020-03-02 21:59:52.280849    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21324 2020-03-02 22:00:02.040793    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21339 2020-03-02 22:00:21.241365    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21344 2020-03-02 22:00:40.406630    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21374 2020-03-02 22:00:59.608025    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21379 2020-03-02 22:01:18.808520    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21408 2020-03-02 22:01:38.007619    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21413 2020-03-02 22:01:57.208543    161.117.97.14         10.9.180.89           TCP      56     [TCP Retransmission] 80 → 41818 [FIN, ACK] Seq=1492 Ack=408 Win=1574912 Len=0
  21418 2020-03-02 22:02:16.568119    161.117.97.14         10.9.180.89           TCP      56     80 → 41818 [RST, ACK] Seq=1493 Ack=408 Win=1574912 Len=0

Клиентская сторона не возвращала никаких сообщений, а серверная сторона всегда повторно транспортирует пакет fin (seq = 1492), что вызвало это? Сторона приложения не возвращает сообщение?

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