Cell Relay Archive

[Martin Winter <Nospam.Martin.Winter@oen.siemens.de>]

Yu Ning wrote:
> 
> Hi friends,
> 
> We're currently working on the ATM signalling(UNI3.1/4.0) software of
> our ATM switch. During our test, we use Sun SBus-155M ATM Card to verify
> the signalling capability of our switch.  We use CLIP mode of the Sun
> ATM card.
> 
> We find that:
> Whenever the upper layer(telnet/ ftp/ ping) has a connection request to
> ATM layer, the Sun ATM card will setup a wire-speed pipe(i.e. 135M of
> 155M physical link), and only one pipe for all upper layer app.
> 
> So my question is:
> As to the Sun Sbus-155M ATM card, is there any other means to  control
> the clear and setup of multipile connection by the ATM command line
> provided by Sun?( Of couse not via the card's ATM API).
> 
> Thanks your help.

I think, no. When you are using the ATM card this way, you're working
with IP over ATM or LANE, whatever you have set up. Both protocols do
not provide any means to distinguish several streams between two hosts.
So these protocols are not able to setup more than one connection.

SUN is always using "the rest of the capacity" for this IP connection.
When you're not running any other native ATM application, then this will
be wire speed.

If you want to setup several connections, then you have to use the API
(or a native ATM application, which uses the API, but sorry, I don't
know one).

-- 
Martin Winter

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