This way, TCP can detect if a packet goes missing and resend it accordingly, ensuring reliable transmission of data. The MTU was set to 9000bytes. Unstable throughput is typically caused by packet loss. Mathis, et al. The Mathis equation states the for TCP Reno, the maximum throughput is bound by this formula: TCP throughput = (TCP Window Size / RTT) Without packet loss (and retransmissions), this is correct. Packet loss in a TCP connection is also used to avoid congestion and thus produces an intentionally reduced throughput for the connection. Mahesh, It would actually depend on various factors like Application (TCP vs UDP), window size, latency, packet loss etc . Packets are pushed to the destination with no regard for packet loss or packet … BDP/RTT is the optimal (maximum possible) transfer rate in the network. provide a simple formula that offers insight into the maximum TCP throughput on a single session when there is packet loss. TCP is designed to slow down in case packet loss is detected. To calculate packet loss, depending on the type of traffic, you can either add up the tcp.retransmission and go from there. Packet loss is measured as a percentage of packets lost with respect to packets sent. It will show the throughput for the entire file. Network packet loss: are we still coping with that today? Despite the maturity of network links to 10Gbps and beyond, packet loss is still an underlying network event that impacts applications today. We compare traditional TCP Reno, Hamilton TCP (htcp), and throughput predicted by the Mathis equation. The Transmission Control Protocol (TCP) detects packet loss and performs retransmissions to ensure reliable messaging. p 1/2, where d is the link delay and p is the packet-loss probability. Does RTO decreases or increases with each packet lost and does it also affect the decrease in the throughput? Note the with default MTUs of 1500, the impact of packet loss is even greater. When troubleshooting the network there are three metrics used in assessing performance: latency, packet loss, and throughput. TCP Network Latency and Throughput Or ‘Why your customer doesn’t receive the Throughput they paid for’ TCP versus UDP Background Traditionally, video was carried over User Datagram Protocol (UDP). That formula is: Figure 1: Factors that Impact Throughput. Here is a good link on how to calculate the throughput Here's a few things you can try to improve the throughput in this situation: Try setting a … and delay product settings. If the congestion window decreased when a packet was lost, would it decrease the throughput (speed of the sending of packets from web server)? If you want to know throughput for some specific traffic, filter it first, then Statistics - Summary, then look in displayed packets. The effect of packet loss on TCP throughput has been widely analyzed. 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