Anyone here use the TTCP program before?

Posted on 2004-09-26
Last Modified: 2010-04-21
I cant find any good documentation that explains the commands. I'm running it this way.

On the receiver:
ttcp -rs -l1024 -n10 -p4444

On the sender:
ttcp -ts -l1024 -n10 -p4444 dest_ip_here

Can anyone tell me what the -l switch and the -n switch do?  (in layman terms). I know it has something to do with packet length. Right?
Also, feel free to elaborate and give any pertinent info you think may help.
Question by:dissolved
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Expert Comment

ID: 12157735
-l    length of bufs written to network (default 1024)
-n   number of bufs written to network (-s only, default 1024)

see for more details.

man ttcp


Author Comment

ID: 12159131
so -l is the amount of data we're writing to the other machine? and -n is the amount of times we're writing the data?
LVL 38

Accepted Solution

yuzh earned 500 total points
ID: 12159807
-l is the amount of data we're writing to the network
-n  is the number of times the buffer will be transmitted.

Here's a better doc:

Author Comment

ID: 12161642
Thanks, just for clarifications sake:

-l is the amount of data we're writing to the network PER PACKET?

-n is the number of times this data is being sent?  I know you said the number of times the buffer will be transmitted. But is that the same thing as sending it? (since it will go in the sender's receive buffer anyway)?

Thanks man
LVL 38

Expert Comment

ID: 12166219

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