These retransmission timeouts add up to significant problems for network and application performance and certainly require some tuning and optimization. ![]() We've seen sites that show millions of RTOs in a 24-hour window, with one million RTOs translating to 277 hours of application delay. After some amount of time, usually at least one second, the sender cautiously starts sending again, testing the waters with just one packet at first, then two packets, and so on.Īs a result, an RTO causes, at minimum, a one-second delay on your network. An RTO occurs when the sender is missing too many acknowledgments and decides to take a time out and stop sending altogether. So What Are Retransmission Timeouts?Ī retransmission timeout (RTO), on the other hand, is quite a different beast. This actually happens all the time, and typically doesn't cause much of a problem: as the retransmission timer counts down, the packets are resent, and the network continues to hum along. When an outbound segment is handed down to an IP and there's no acknowledgment for the data before TCP's automatic timer expires, the segment is retransmitted. TCP ( the Transmission Control Protocol) connects network devices to the internet. ![]() ![]() What are they and what can you do about them? What Is TCP Retransmission? In an effort to rid the world of needless application and network performance slowdowns, we turn to retransmission timeouts (RTOs).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |