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Hi,

see my comments below.

Regards
Rainer

> -----Ursprüngliche Nachricht-----
> Von: Dilip
> [mailto:dilris AT yahoo.com]
> Gesendet am: Mittwoch, 10. Oktober 2001 21:30
> An:
> discussion AT sctp.de
> Betreff: [SCTP-Discussion] Questions with Socket API
>
> Hi
>
> I have implemented a simple echo server and a echo
> client. using SCTP socket API..
> It works fine.
>
> Had few questions..
>
> 1. If I connect to the server (has multiple interface)
> DO I have to specify all the interfaces on that server
> during ext_connect on client side.
> IF NO then will the ext_connect() automatically check
> for availabilty of service on ALL server interfaces?
>
> 2. Is it possible using the Socket API to get a
> notification or anyother means of network changes
> (That is if primary path fails and SCTP changes its
> path automatically).
>
> 3. VERY imp.. Is there a way to set the TIME the SCTP
> trys to see if a path is valid before switching to the
> other paths. In my case I was having 2 interfaces on
> server and clients.. and the communication started and
> when I break one path. THE client sent msg waits for
> big time and then sends the msg. and this time
> gradually reduces and after few minutes gets back to
> normal speed of transfer..
>
> 4. If the failed path comes up again THEN why doesnt
> the connection switch back to that path? or does it
> need to behave that way..

If primary path fails, it will be marked as inactive
and data will be sent out on a different path.
The primary path will stay the same, but the only
messages on an inactive path will be hearbeat and
heartbeat ack.
The only way to switch back is when a hearbeat sent
out on the primary path returns and sets the
primary path back to active state.
Did you have hearbeats enabled? It may take some time.

>
> Regards
> Dilip
>
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• AW: [SCTP-Discussion] Questions with Socket API, Benedict Rainer, 10/11/2001

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