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安裝中文字典英文字典辭典工具!
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- Why do I see a RST, ACK packet instead of a RST packet?
Why do you think there should be a RST segment before RST ACK? Maybe you could provide an example of such a packet trace?
- NACK vs. ACK? When to use one over the other one?
24 Personally I don't even feel that there is a need for ACK It's faster if we just send NACK (n) for the lost packets instead of sending an ACK for each received packet So when which situations would one use ACK over NACK and viceversa?
- Wireshark filter for specific SYN packet which never received a SYN ACK
Is there a way in wireshark to find out a single SYN that does not get answered by SYN ACK?
- What does TCP DUP ACK mean? - Network Engineering Stack Exchange
In Wireshark, I see TCP duplicate ACK packets sent from the receiver to the sender What does it mean? Does it imply packet loss? Thank you
- Why need Ack flag if we already have ack number in TCP
The ACK flag indicates that the Acknowledgment Number field is significant, ie containing a meaningful value When a socket connection has already been established that is nearly always the case, but it isn't while a connection is being established Acknowledgment Number: 32 bits If the ACK control bit is set this field contains the value of the next sequence number the sender of the segment
- TCP Duplicate Acknowledgement - Network Engineering Stack Exchange
Then the receiver will sending an duplicate ACK to sender, so whenever sender receive 3 duplicate ACK then the sender will retransmit the loss segment But in this case where segment number 2 and 5 is loss how is the process, does 6 duplicate ACK will send by the receiver, remembering we lost 2 segment the segment 2 and 5?
- For TCP, what is the justification that ACKs are Last Byte Received + 1 . . .
Intuitively, it makes more sense that the ACK be the last byte received Essentially, the receiving end says I have received up to N bytes Then, the sender will receive that ACK that says N and
- Window Size and ACK Number - Network Engineering Stack Exchange
Copy-pasting from my lecturer's slides: • Receiver indicates the window size is 3000 • Transfer goes ahead • Acknowledge every 3000 bytes • Receiver increases window size to 4000 • 4000 bytes
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