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Re: (ASCEND) Kudo's to Engineering. (fwd)


 Correct, I've spend the last few days researching this and here's what
I found, Most Rockwell bases client modems out on the market today contain
1MB ACF chips.These chips can support either V.90 or K56flex at any one
time. Resources at Ascend say that Rockwell is going to supply a utility
which will allow the end0user to switch back in forth between V.90 and
K56FLEX when they want. 

*NOTE* 

 Only one of these protocols can be in the ACF memory at a time.

*NOTE*

 So pretty much you would load up V.90 when wanted, if you were not happy
you would load up KFLEX at your leisure since both will stored on
you hardrive. 

Good News
---------

 Newer ACF chips produced by Rockwell have increase memory to 2MB, and
this will allow the newer client modems to support both V.90 and K56Flex
at the same time.

 On the NAS side, things are looking good, Ascend has plenty of room
for all protocols, since they use the Rockwell CSM server chip, the 
memory resides on the modem module. And apparently there is enough room
to have support for V.90, KFLEX, V.34, V.Whatever. :)

Jason Nealis
Director Internet Operations
Network Access
Erols Internet


 
 
 
 
On Fri, 13 Mar 1998, MegaZone wrote:

> Once upon a time Jason Nealis shaped the electrons to say...
> > Why is this? If the client fails to negotiate V.90, Shouldn't the client
> >then fall back to K56? or is it because the RAS/NAS negotiates KFLEX first
> >by the time the client falls back to K56 the RAS/NAS has already fallen
> >back to V.34? (am I close?)
> 
> It is the Rockwell clients.  Many (perhaps most, but I don't believe all)
> do not have a large enough FLASH to hold code that can support BOTH K56flex
> and V.90.  So if you upgrade to V.90, the modem loses K56flex (and K56Plus)
> and the next fallback is V.34.  This doesn't impact Lucent K56flex client
> modems BTW, they will fallback to K56flex, then V.34, if V.90 fails.
> 
> -MZ
> --
> <URL:mailto:megazone@megazone.org> Gweep, author, webmaster, human being, me
> "A little nonsense now and then, is relished by the wisest men" 781-788-0130
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