"Understanding TCP Flags: Exploring 3 Additional Flags and Their Processing"
In this video, we delve into the world of TCP flags and examine three additional flags along with their processing mechanisms. Transmission Control Protocol (TCP) is a crucial protocol used for reliable communication over networks. Flags play a vital role in TCP, aiding in various aspects of packet transmission and control. Join us as we shed light on these often-overlooked flags and their significance.
To begin, we explore the Reserved, ECN-Echo, and CWR flags. The Reserved flag, as the name suggests, is reserved for future protocol use and must be set to zero. The ECN-Echo flag helps ensure integrity and congestion notification, while the Congestion Window Reduced (CWR) flag aids in alleviating network congestion. Unveiling the intricacies behind these flags enhances our understanding of TCP behavior.
Moreover, we discuss the processing of these TCP flags by examining their triggering conditions and the ensuing responses. Understanding when and how these flags are set, cleared, or altered provides insight into the inner workings of TCP. We also elaborate on the interactions among various flags during different network scenarios.
Stay tuned throughout this comprehensive video as we demystify these three additional TCP flags, providing real-world examples and explanations. Expand your knowledge of TCP flags and bolster your network understanding with this informative resource.
To know more about TCP watch this video below.
• Transmission Control P...
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Пікірлер: 57
3 more flags added in TCP flags to notify the sender about Congestion in the Network. Please watch the Video till end to know more.kzread.info/dash/bejne/nWFkqa6KhpqbY6w.html&ab_channel=TechClout
@richardscheffenegger9138
7 ай бұрын
URG is strongly discouraged (RFC9293). No point spending too much time explaining this never-really-working functionality. Nonce Sum has been obsoleted / made historic (rfc8311) You may want to update / enhance this talk with the Accurate ECN mechanism and the ACE field, as well as the AccECN handshake/negotation mechanism
@richardscheffenegger9138
7 ай бұрын
Errate: ECE/CWR only has that semantic as explained while the SYN bit is set; the semantic changes during the actual data exchange. Also CWR is bit 8 and NS used to be bit 9 (wrong order). But that is now the AE flag. And the explanation of the CWR is completely incorrect as is the ECN mechanism. I hope everyone actually reads RFC3168 and doesn't take this as proper explanation. In short: Sender set's IP ECN to ECT(0) [on new data, not control, ACK, or retransmissions]. Congested Switch converts IP ECT(0) -> IP CE Receiver latches ECE flag on the returned ACKs (reliable feedback of the IP CE codepoint, but only one CE per RTT possible) Sender observes ECE, reduces congestion window as per the congestion algorithm and sends - on the next new data packet - CWR once. Receiver clears the latched ECE once the CWR arrives - for about a decade most stacks had a bug, where a CE-marked CWR packet would *not* latch ECE on immediately again, btw. It would be nice to redo this video (and remove the old version).
Crystal clear explanation... thanks a lot for this video... looking to understand TCP first and then later Wireshark. This video is a great start
Great sir thank you so much for making this video.
What a simple yet amazing explanation! Subscribed ✅
@TechClouts
5 ай бұрын
Welcome aboard!
Thanks for the insightful explanation
*Thank You so much, Vaiyaa.*
Very informative video and explaination is very good..... Thankyou for the informative video...
@TechClouts
Жыл бұрын
Thankyou for your comment. Please keep sharing buddy
At last found it, what i have been searching for a very long time 👍
@TechClouts
2 жыл бұрын
Glad I could help
@ravindersehrawat5911
Жыл бұрын
no he just tell the opposite
Excelent video!!!
Such a great explanation. Thank you!
@TechClouts
6 ай бұрын
Thankyou for watching. Please keep supporting
Your explanation was very nice, we are getting much clarification on tcp flags with your explanation. good job
@TechClouts
Жыл бұрын
Thankyou for your comment. Please keep sharing
@richardscheffenegger9138
7 ай бұрын
Unfortunately, for the ECE, CWR, and NS part, it was also mostly entirely wrong. Spending time on URG was pointless as noone really uses/implements this any more.
Wonderfully explained. Thanks a lot bro
@TechClouts
Жыл бұрын
Thankyou for your comment. Please keep sharing
Another excellent video👍 thanks for sharing such knowledge.
@TechClouts
2 жыл бұрын
Glad you enjoyed it
@richardscheffenegger9138
7 ай бұрын
Unfortunately, mostly wrong though
Fabulous work, Keep up the good work!
@TechClouts
Жыл бұрын
Thankyou for your comment. Please keep sharing
Awesome 👍
@TechClouts
2 жыл бұрын
Thanks for the visit Glad to help
Very informative content
@TechClouts
2 жыл бұрын
Glad you liked it
Great video
@TechClouts
2 жыл бұрын
Thanks for the visit Glad to help
Really awesome bro
@TechClouts
6 ай бұрын
Thanks for commenting. Keep supporting
Great
@TechClouts
2 жыл бұрын
Glad to help
The Push flag explanation isn't correct. The Push flag itself means that push the data immediately to the application layer without being waiting for the entire segment to get filled. The Push flag indicates that you don't to wait anymore this is what is the end and you should send the segment ASAP to the upper layer. The Urgent flag prioritize the data over other data. If there are multiple segments in the buffer and one of the segment has the pointer set then it will be processed first over the other segments. Now if you have one segment with URG pointer set and other with Push, then obviously the URG will be prioritized first. Thanks!
@explorewith_aman
Жыл бұрын
once you push data on a connection you have to wait for the receiver to get all of it before it gets to the new data. This is where the URG flag kicks in. When you send urgent data, your TCP creates a special segment in which it sets the URG flag and also the urgent pointer field. This is what I got from the internet. I think he correct in video
@yamunaprajapati2241
Жыл бұрын
Correctly said. Thanks for bringing in notice #AaruneticTales
@sumanratnalu1717
Ай бұрын
Right, Push definition is wrong in the video.
In every networking site, clearly mentioned, that Push flag packet doesn't wait in the queue but urgent does.
@TechClouts
Жыл бұрын
Jeremy Stretch has a good write-up about it please read about it on internet. So now the telnet is connecting to a remote computer, we want to be able to have the commands we type executed right after we typed them. That is why they are flagged with URG flag.
@TechClouts
Жыл бұрын
Thankyou for your comment. I hope this clear to you.
🎉 Great job is there a way for us to send you a donation.
@TechClouts
6 ай бұрын
Your comment and support is highly great for us. Please keep supporting and sharing.
sir what is the difference between TCP and UDP
@TechClouts
Жыл бұрын
kzread.info/dash/bejne/enaAtchwqtrQZso.html, watch here or go to the playlist
What is XMAS flag ?
@TechClouts
Жыл бұрын
Thankyou for Asking and sorry for replying late. So Xmas flag is nothing but a term being used to identify a kind of attack. In which attacker turn on three important flags( SYN, URG & PUSH) which make the destination device busy or over load it to stop processing the legitimate traffic. You can find this if you have any wireshark capture for DDOS attack.
Something big wrong, The PSH flag will not WAIT to full the buffer, the data will be sent immediately !!!
Clout
sir the difference between push and urgent flags as u mentioned is totally wrong ...u need to check it again because u just tell the opposite ...sir telnet uses push not urgent sir please think about it
@TechClouts
Жыл бұрын
Thankyou for you query-:) Because telnet is connecting to a remote computer, we want to be able to have the commands we type executed right after we typed them. That is why they are flagged with URG flag. I hope this clear you.
@ravindersehrawat5911
Жыл бұрын
@@TechClouts telnet and ssh use push flags ..not urgent...i have checked wireshark too... because push bypasses tcp buffer on both ends.
its ok but not in details , need to improve
@TechClouts
5 ай бұрын
Thankyou for your comment. We will work on it soon 🙂