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Hi Eli,

comments in-line.

Best regards
Michael

On Jun 15, 2008, at 12:14 PM, elie wrote:

Michael,
I'm checking the points you wrote, just to make sure I'm on
track:

I'm controlling my window size with the myRwnd parameter.

So is the sctplib running on the CPU being slow or is
it the peer? Do you want to limit your own rate or the
rate of the peer?

The other window size is configured to 64k (not my
application).

OK.

How do I enable/disable the Nagle algorithm? I've looked
around and found a definition for SCTP_NODELAY, but I can't
see anywhere it is being used.

Possibly it is not implemented, don't know. My list
of reasons was in general for an arbitrary implementation.

Thanks,
Eli.

Hi Eli,

comments in-line.

Best regards
Michael

On Jun 15, 2008, at 9:42 AM, elie wrote:

Hi,
Working on windows, I'm trying to build some congestion
control using SCTPlib, as I've been advised previously.

I guess it is more flow control, since you do not want
to overload the receiver, right? Not the network.

And I have a basic question - when I'm using sctp_send to
send a packet, how can I make sure the packet will be
actually sent with minimum delays?

I'm encountering problems with it: when i'm sending one
packet, than wait a bit (20 milli) than send another, it
_seems_ some aggregation is taking place which I can't
find the reason to.

What do you see on the wire? The SCTP sender might not put
the packet onto the wire due to
- the Nagle algorithm is enabled
- the congestion window does not allow more to send
- the advertised receiver window does not allow more to

send.

thanks-
Eli.


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• [SCTP-Discussion] sctp_send, elie, 06/15/2008
  • Re: [SCTP-Discussion] sctp_send, Michael Tuexen, 06/15/2008
  • <Possible follow-up(s)>
  • Re: [SCTP-Discussion] sctp_send, elie, 06/15/2008
    • Re: [SCTP-Discussion] sctp_send, Michael Tuexen, 06/15/2008
  • Re: [SCTP-Discussion] sctp_send, elie, 06/15/2008

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