The reason why TCP sends consecutive ACKs all together While analyzing Wireshark capturing, I noticed that the sender or the receiver sometimes sends a bunch of consecutive ACKs together as oppose to what I have learned
Why does TCP sends more than 1 ack per packet? - Super User With an MTU of 1500, it's impossible for a single packet to be 4794 Bytes This therefore indicates that you are seeing the effects of Large Segment offload in Wireshark where the data hasn't yet been split up
tcp - What is duplicate ACK when does it occur? - Stack Overflow It is assumed that if there is just a reordering of the segments, there will be only one or two duplicate ACKs before the reordered segment is processed, which will then generate a new ACK If three or more duplicate ACKs are received in a row, it is a strong indication that a segment has been lost "
Understanding TCP Seq Ack Numbers [Packet-by-Packet] The client increases its sequence and acknowledgement number by 1, letting the server know it has received its SYN ACK packet From this point, the sequence and the ack numbers will increase only after one end has sent or received some data
TCP Congestion Control - GeeksforGeeks Multiplicative Decrement: If congestion occurs, TCP reduces the congestion window The sender detects congestion when a packet needs retransmission, either due to an RTO timeout or receiving three duplicate ACKs
19 TCP Reno and Congestion Management - Loyola University Chicago TCP’s congestion management is window-based; that is, TCP adjusts its window size to adapt to congestion The window size can be thought of as the number of packets out there in the network; more precisely, it represents the number of packets and ACKs either in transit or enqueued
Linux TCP Troubleshooting: High Send-Q on Sender, Zero Recv-Q on . . . We’ll break down TCP internals, explain why a high Send-Q with a zero Recv-Q occurs, and walk through troubleshooting steps to fix it By the end, you’ll understand how TCP flow control, socket buffers, and application behavior interact to cause this “stuck” state
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