[Click] delay

[Eddie Kohler]

Philippe,

I think you've misunderstood DelayShaper.  It doesn't change the shape of the 
stream.  It delays packets based on tiemstamp annotations, not the time the 
packets arrive at the shaper.  If your packets have correct timestamp 
annotations when they come in then shape should be mostly preserved. 
DelayUnqueue is the same.

Eddie


Philippe De Neve wrote:
> Hi Joachim,
> 
> Tnx for your reply.
> 
> I don't think this will realize what I want because the delayshaper delays
> every packet for a certain time. So if a burst of 10 consecutive packets
> arrive in a queue before the delayshaper, every packet is delayed for a
> certain time resulting in the burst being spread out more. So the delay
> shaper not only delays the packets but also changes the shape of the stream.
> What I want is something that delays but NOT changes the shape a stream.
> I want to do this to test interactive applications to check how much delay
> is allowed between end users.
> 
> regards, Philippe.
> 
> 
> 
> ----- Original Message ----- 
> From: "J Klein" <JKlein at gmx.com>
> To: "'Philippe De Neve'" <Philippe.deneve at intec.ugent.be>;
> <click at amsterdam.lcs.mit.edu>
> Sent: Friday, January 07, 2005 6:28 PM
> Subject: RE: [Click] delay
> 
> 
> 
>>Hi Philippe,
>>
>>Delayshaper (pull, pull) as well as delayunqueue (pull, push) use the
>>timestamp of the packet as basis for the added delay if the timestamp is
>>set.
>>If your packet source does not already set the timestamp of the packet you
>>can put a Settimestamp as a first element in your graph, and delayshaper
> 
> or
> 
>>delayunqueue should do the best they can to give you a constant delay
>>regarding the arrival time of the packets - eg at the end of your click
>>graph you put a Queue(...)->Delayshaper(...)->ToDevice(...). Isn't that
> 
> what
> 
>>you want or did I miss something?
>>
>>Regards
>>-joachim
>>
>>-----Ursprüngliche Nachricht-----
>>Von: Philippe De Neve [mailto:Philippe.deneve at intec.ugent.be]
>>Gesendet: Freitag, 7. Januar 2005 14:28
>>An: click at amsterdam.lcs.mit.edu
>>Betreff: [Click] delay
>>
>>Hi,
>>
>>is there a possibility to construct, with standard elements, a 'distance'
>>delay? I know about the delayshaper but this element delays every packet
>>with a certain time resulting in a different delta between packets.
>>My intention is to create a delay so the stream on the output of click is
>>exactly the same as the input stream only DELAY seconds delayed.
>>Has anybody done this?
>>
>>regards, Philippe.
>>
>>
>>
>>
>>
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>>
> 
> 
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