Ivo Vachkov wrote:
On 12/7/06, Michael Tuexen <[EMAIL PROTECTED]> wrote:
Hi Andre,
see my comments in-line.
Best regards
Michael
SCTP has a extension called PR-SCTP, which is implemented in BSD
and can be used to limit the number of retransmissions of a
DATA chunk to 0. The service you mention above is therefore available
in SCTP.
There is only one problem with that - you need to do a major rewrite of
your
current software to use SCTP
No, I disagree here.. we designed the API of SCTP to
literally be completely compatible with TCP..
You do
sd = socket(AF_INET, SOCK_STREAM, 0);
change this to
sd = socket(AF_INET, SOCK_STREAM, IPPROTO_SCTP);
and you now have SCTP .. if you use a socket option
or two (no delay for example) you will have to change
this to the SCTP equivlant.. which are conviently named
the smae with SCTP_ at the prefix...
There is also a shim layer that makes it so you can do both
TCP and SCTP (trying SCTP first).. but thats not ready yet.. ;-)
and hope that all OSs it's supposed to run
on/with have SCTP support (and it's enabled).
Ahh.. well there is that.. all O/S's (current ones at least)
support SCTP with the exception of WinDoz..
You can add a package to WinDoz to make SCTP run on it.. but
no one likes to do that :-)
And besides.. if you are doing partial reliable TCP do you
really think you can do it without both ends supporting it?
The same problem would exist here..
R
--
Randall Stewart
NSSTG - Cisco Systems Inc.
803-345-0369 <or> 803-317-4952 (cell)
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