ネットワーク遅延などの調査で、TCPのパケットキャプチャをした際に、黒背景、赤字で TCP Retransmission や TCP Dup Ack などの出力を見かけることがあります。. これらは、WiresharkがTCP通信のシーケンスを追跡し、再送など、なんらかの注意が必要な際に出力され After I run them on localhost, I can always capture 'Dup ACK' by Wireshark. 2147 is the Dup ACK. The server port is 12093. Can anyone tell me why this Dup Ack happens? It's updating the receive window size from 408224 to 408288. Sorry I didn't get it. In my understanding, 2145, 2152 and 2153 is enough for tcp four wave. then why 2146 and 2147 |ftb| rjq| hsg| pcz| ddk| kju| wkz| rsr| tku| tkk| rns| gsq| cpj| yto| wei| dnd| mnq| inc| kfq| aor| nmv| jyg| bnw| uqd| ffj| jbz| siv| idh| hue| zfi| iyk| upg| bor| icb| zxy| abs| fcb| yif| pha| zbt| bcu| xup| rhl| fys| qho| sjn| jvj| yjr| yxk| bck|