NACK vs. ACK? When to use one over the other one?
Jan 12, 2016 · 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?
Fast retransmit: NACK OR ACK? - Network Engineering Stack Exchange
Aug 23, 2015 · I have a question regarding fast retransmit. For example if packet#9 is lost. We send 3 ACK/NACK#9 after each other. But my question is, are we sending 3 acks or nacks in a row with fast …
TCP ACK confusion - Network Engineering Stack Exchange
Apr 8, 2021 · When a packet is being sent after the SYN ACK connection has been established between a host and a server, packets can now be sent between the hosts and a server. Sometimes, there’s a …
ieee 802.11 - meraki bridge mode: dhcp is untagged - Network ...
Nov 28, 2019 · Could you also include the configuration of the router interface and the switchport connected to the router. I have seen Meraki installations similar to what you describe that do have …
no way of knowing whether or not the receiver has correctly received ...
Aug 10, 2020 · "then the sender immediately know that it just needs to reverse the nak to ack, which means the sender does know whether or not the receiver has correctly received the last piece of …
TCP and Go-Back-N - Network Engineering Stack Exchange
To add to the previous answer: A "Cumulative ACK" implies that all the bytes sent by the sender (so far) have been received correctly by the receiver. In order words, when the sender receives an ACK with …
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?
ipv4 - Go Back N protocol - Network Engineering Stack Exchange
Jun 10, 2017 · If ACK 4 is lost, and ACK for all previous or at least number 3 has been received, current window will be [4,5,6, (7)] where 7 is not yet available to send. Go back N goes back to packet which …
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 ...
switch - Network Engineering Stack Exchange
Jun 2, 2020 · I believe I have a bad Cisco Nexus N9K-C92160YC-X. I received this switch on loan from a customer with a blank configuration. I've recently learned that its warranty is expired and it's not cov...