At least on the surface it would seem to be possible. There could be some
sticking point in the guts of the D channel protocol, but:
a. the 16k D channel is packet switched and very low usage (just
dialing info and status, etc). It is designed to be
aggregated into larger pipes. I'd think 12 16k Ds wouldn't
stress a signal 64k D in the pseudo PRI.
b. you may have to just do 11 BRIs (for 22 Bs) or do 12 BRIs (for
24 Bs) and waste one B channel.
Note: could it be that there is some problem with this D channel
aggregation? Our BellSouth engineer (and others) continue to tell me that
they have to reserve 3 channels (3x64) in the switches to support EVERY
ISDN BRI they install. Is there a problem with the D channel protocol or a
problem with the switch manufacturers' implementation, or a problem with
the telco configuration of the equipment? (I vote the latter).
Later!
Derric
> - ----------
> From: Gary C. Merck[SMTP:mgary@CLEMSON.EDU]
> Sent: Monday, October 14, 1996 3:08 PM
> To: portmaster-users@livingston.com
> Subject: ISDN channel bank?
>
> I am looking for what would basically be an ISDN "channel bank".
>
> IOW, a box that would take 12 BRIs in one side and spit out
> a PRI on the other - and vice versa. Sorta like a traditional
> channel bank does with analog POTs lines and channelized T-1.
-- Derric Scott Scott Network Services, Inc. P. O. Box 361353 derric@scott.net (205)987-5889 Birmingham, AL 35236