(ASCEND) IDSL (fwd)
owner-asc...@max.bungi.com
At 23:31 1998/05/04 -0400, Jason Nealis wrote:
>> No. The 16K d-channel is still not used for data even over IDSL.
> Correct, in ISDL it's really not that big of a deal unless your looking
>for the additional bandwidth, But for ISDN it works for access without
>any line charges, Kevin, Who is providing bandwidth over the D-Channel?
>I think I heard something about Pac-Bell offering this, I'm curious how
>does it work? do you know?
Unless you happen to have a spare SLC lying around, this is
probably a rather expensive way to go, but...
I've seen modules that convert a SLC-96 to operate as a frame relay
concentrator, and create an 2B1Q/ISDN leased line from the SLC to CPE,
each port can be 2B no D (128k) or 2B+D (144k) subject to limitations of the
CPE.
It passes packet switched data from the SLC to a Frame switch or router.
Most other solutions that I've seen try to emulate a phone switch
(usually AT&T PTP) by using the D channel for signaling,
to remain compatible with normal ISDN devices.
If anyone is going to Interop, you might want to check out
Pulse Communications http://www.pulse.com/ (booth 2291)
these are the people with the SLC cards.
also of interest Red Back Networks http://www.redbacknetworks.com/
and Diamond Lane Communications http://www.dlcc.com/
you'll find more info on different DSL vendors at http://www.xdsl.com/
-Jim H
----
Jim Howard Sr Network Engineer Lyceum Internet
jho...@lyceum.com http://www.lyceum.com/ 404.248.1733
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