I heard the new version was comming, but from everything I know they
haven't oficially hit the street yet, though I am looking forward to
giving one a run..
> > So I installed the card, booted the PM3, and during the startup it
> > informed me the compression card was recoginized, so I smiled. Then I
> > told my P75 to connect to it using STAC (The P75 supports STAC, MS-STAC,
> > and STAC-9), and saw no improvement in througput moving a very compressible
> > file. As Livingston says they support MS-STAC, I then tried that with the
> > same results, 0 increase. So I thought what hte heck, I have no idea what
> > this STAC-9 is but it's worth a shot. I setup for STAC-9 and then made
> > the transfer and get about 525kbps, man did this make me happy!!
>
> Assend had some proprietary stack, then the LZH compliant stac. I had to
> upgrade customer pm 25's EVEN THO they had the stac card to do REAL stac.
Yep, as mentioned above the LZH STAC is called STAC-9 by Ascend..
> > So I wrote to Ascend and asked what the heck was STAC-9, and was told
> > it was the open standard form of STAC, where regular STAC mode is specific
> > to Ascend (I can live with that). As usual everything seems to have a
> > down side in this world. I ran with STAC-9 selected for several days, and
> > would find that every now and then when performing a lot of data movement
> > over the link that things would freeze. Then only way to correct this was
> > to drop my connection and re-dial. I had this happen a great many times,
> > and usually when moving a lot of data over the link (I have a 24/7 connection),
> > as during my idle time I never saw it die. So I disabled the compression
> > on my end (thought he compression card is still in the PM3), and figured
> > I would run a few days like that. No more lockups, everything was back
> > to perfect, just less throughput.
>
> Hrm, what is the os rev on your p75?
My P75 is running version 5.0A+i16 so it's very current..
> > I suspect compatibility between Livingston and Ascend should be of some
> > importance as there is a lot of Ascend gear in the field as well. I figured
> > I would post this to the list as well as send it off to support, as I would
> > be most interested in hearing the experiences of other users who decided to
> > jump and get the new compression card...
>
> It is important that that work, yes. I dunno if the stac card and the OR-U
> stac compression are the same code altho I would suspect that it is the
> same. Make sure that BOTH products are running revision 9 of the LZH stac
> specification.
Hopefully the PM3-CMP card is runing Rev 9..
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