Web1. tcp 重传机制. 为保证数据安全到达接受端,tcp引入了超时重传、快速重传、sack、d-sack。. 1.1 超时重传. 以时间为基准,在发送数据时设置个定时器,如果期限内没收到接受者的ack就会重新发送数据,一般数据包丢失或确认应答丢失会导致超时重传,这里先普及两个跟时间相关的参数跟一些规则。 Websack相关信息,sack of constantinoplecurd sack 的解释:;以及相关食品领域中相关专业词汇 凝块排乳清袋;(用于乳清排放的)装凝块的口袋 ... SACK: Selective Acknowledgement,选择性确认。(2)功能 TCP收到乱序数据后会将其放到乱序序列中,然后发送重复ACK给对端。
第16回 信頼性のある通信を実現するTCPプロトコル(3)
WebTCP の選択確認応答 (TCP SACK) は、RFC 2024 に準拠します。. この機能は、衛星通信や大陸横断通信などで TCP のラージウィンドウ (RFC1323) を使用するアプリケーション … WebJun 17, 2010 · Step 4. The server receives the client's duplicate ACK for segment #1 and SACK for segment #3 (both in the same TCP packet). From this, the server deduces that the client is missing segment #2, so segment #2 is retransmitted. The next SACK received by the server indicates that the client has also received segment #4 successfully, so no more ... black wire brush
基于Wireshark的TCP SACK重传介绍 - CSDN博客
WebApr 17, 2024 · SACK is an option in the TCP header options field. Selective ACK option can be found in SYN and SYN-ACK segments in the 3-way handshake. Seen in the above … WebJun 17, 2014 · Now take a look at this step-by-step explanation of the SACK process. Step 1 Sender sends 10 segments of data, each containing 100 bytes of data, to a receiver starting with a sequence number of 1000.. Step 2 The receiver receives segments 1 through 4 and 6 through 10.. Step 3 The receiver then realizes that it is missing some data and sends a … WebJun 19, 2024 · Selective acknowledgment (SACK) is a technique used by TCP to help alleviate congestion that can arise due to the retransmission of dropped packets. It allows … fox the exorcist season 3