Wpe packet4/14/2023 ![]() ![]() If the second data packet is received before the delay timer expires, the ACK is sent.To increase the efficiency in both Internet and the intranet applications, TCP stack uses the following criteria to decide when to send one ACK on received data packets: When an ACK is sent, the delay timer is reset and will start another 200 ms delay when the next data packet is received. When a Microsoft TCP stack receives a data packet, a 200-ms delay timer goes off. Original product version: Winsock Original KB number: 214397 Background It also derives a series of recommendations for sending small data packets efficiently from a Winsock application. This article discusses these issues by using a couple of cases studies. A design that doesn't take into account the interaction of delayed acknowledgment, the Nagle algorithm, and Winsock buffering can drastically affect performance. ![]() When you need to send small data packets over TCP, the design of your Winsock application is especially critical.
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