Tell me more ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.
up vote -3 down vote favorite

my machine is Ubuntu. When i click on some download link i see continuation packets, why is that ? why there are continuation packets before i start download the file

share|improve this question
I see that i get downvote, can someone help me to understand what is the problem? – user1495181 Nov 16 '12 at 19:45

closed as not a real question by ewwhite, Shane Madden, Ward, John Gardeniers, mdpc Nov 15 '12 at 18:31

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.

1 Answer

up vote 2 down vote accepted

What do you mean by fluent? Are you talking about the continuation packets? Your browser sends those to keep the connection to the web server from timing out before you decide what to do with the Save window. If those packets were not sent, then the web server might give up waiting before you had a chance to tell your browser what to do with the file.

share|improve this answer
Yep , i am talking about the continuation packets. Why is it so much packets the wireshark on my comp stuck when try captured them. i listen to nfqueue and i lose a lot of packet because this is huge amount. – user1495181 Jul 21 '12 at 16:39
When you select a large file for download you get a corresponding large number of packets. You will get slightly less than one packet for every 1kb of file size. On a high speed line packet capture software may not be able to keep up. – BillThor Jul 22 '12 at 1:28
Bill, i am not talking about the download. i am asking about phase before download. when the ope/save dialog open and you still didnt chose anything. In this phase i am getting fluent of tcp packets. see the wireshark that attached. – user1495181 Jul 22 '12 at 1:38

Not the answer you're looking for? Browse other questions tagged or ask your own question.