Wireshark · Wireshark-users: Re: [Wireshark-users] How to find TCP slowstart phase begins

[samira afzal <afzal.samira@xxxxxxxxx>]

Thanks a lot for your useful information Jaap. 

I was thinking because the simulation is loopback it has to have always the same output.But today i took the result and i saw that i have different throughput and rtt. What could have effect on localhost and loopback ? My computer connection to the internet is eth0 ( and my computer has not wifi connection) . and i captured information on   "loopback:lo" interface. Thanks a lot for your time

On Sun, Feb 12, 2017 at 8:25 AM, Jaap Keuter <jaap.keuter@xxxxxxxxx> wrote:

Hi,

If you would zoom in right at the origin, you’ll likely to see the slow start. but it will rapidly transition to congestion avoidance.

Thanks,

Jaap

On 12 Feb 2017, at 07:39, samira afzal <afzal.samira@xxxxxxxxx> wrote:

Hi all,

I got sequence numbers vs. time . Data transmission is over TCP and localhost from client to server. As the transmission is on TCP, I had the expectation that TCP starts to send 2 packets first and then 4 , 8, 16 and etc. Something similar to http://packetlife.net/blog/2011/jul/5/tcp-slow-start/. but my Graph is different. and i can't understand why? Is it possible to understand when TCP slowstart phase begins and ends?

Thank you for your time and help.

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