Solved

How to calculate the details about file transmission in packets.

Posted on 2012-03-15
2
374 Views
Last Modified: 2012-03-26
Hi,

I have a message in a file which is transmitted from 1 machine to other in a LAN (over same network).

Can someone answer me that how can I calculate the,
1. Time message took to reach the destination?
2. Message break down into how many packets when transmitted?
3. What information is carried on each packet i.e. frame, header or any other relevant information.
4, How can I calculate the throughput of the messages.

Kindly help me ASAP.

Thanks
0
Comment
Question by:searchsanjaysharma
2 Comments
 
LVL 3

Accepted Solution

by:
StuWhitby earned 500 total points
ID: 37727436
You don't state the OS involved, but....

- ensure clocks are NTP sync'd at both ends
- take a network trace to file (snoop/iptrace/tcpdump on Unix or install Wireshark on Windows and set a capture filter of "host <hostname>" to capture traffic to the other system.
- send the message
- stop the traces
- open Wireshark on both capture files and compare notes.  

tbh, just doing this on the destination host may be sufficient as you can expand the TCP frame details and SEQ/ACK analysis to show the response time for the packet.

Throughput..... kinda depends on exactly what you're looking for.  If you know the size of the message data (follow TCP stream gives you this number anyway) then in theory that would be taking the start and end time of the TCP stream involved and dividing this by the size of the data.  That doesn't take into account the additional data sent in each packet.... which personally I wouldn't care about, but may be necessary for what you're looking for here.

There might be a bit of manual work involved in calculating this, but Wireshark will give you everything you ask for above.  And it's free :)
0
 

Author Closing Comment

by:searchsanjaysharma
ID: 37764575
ok
0

Featured Post

Zoho SalesIQ

Hassle-free live chat software re-imagined for business growth. 2 users, always free.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Cannot ping vlan 2 21 106
Need help identifying correct Network Device and IP Scheme 4 64
Wireshark 4 64
unknown svchost service useing lot of network resources 12 58
Managing 24/7 IT Operations is a hands-on job and indeed a difficult one. Over the years I have found some simple tips and techniques to increase the efficiency of the overall operations. The core concept has always been on continuous improvement; a…
David Varnum recently wrote up his impressions of PRTG, based on a presentation by my colleague Christian at Tech Field Day at VMworld in Barcelona. Thanks David, for your detailed and honest evaluation!
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…

861 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now