Ascend Archive
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Re: (ASCEND) Compression protocols with Pipeline 75
On Wed, Apr 22, 1998 at 05:50:52PM +0100, Chris Wilson wrote:
> What compression protocols can I use with an 18 month old UK spec
> Pipeline 75 router,please?Is the firmware upgrade loaded anything to
> do with what compression might (or might not) be available?
Any somewhat recent firmware should support Stac, MS-Stac and Stac-9
on the Pipe50/75. The first one is a undocumented Ascend proprietary
LZS variant, the latter two are checkmode 4 and 3 according to RFC1974.
Stac is there mainly for reasons of backward compatibility and general
history. It's a good question which method should be used today. I would
say Stac-9 but when we last did a performance comparison, Stac won hands
down over Stac-9. But that was more than a year ago...
--
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