Ascend Archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
re: (ASCEND)56K
Greg Hale wrote:
>A channel in a T1 circuit is 64kb but 8 kb of this is
>used for signalling so you really don't have use of the full channel. With
>a PRI trunk you have a full 64kb to play with because the signalling is
done
>out of band in the D channel. This difference in 8kb would explain the
>differences that people receive in maximum rates. 50000 for a PRI, 42000
>for a channelized T1. Therefore, if the T1 trunks are setup correctly you
>will be able to use 56flex but your max will top out about 42000, maybe
>44000 in rare instances.
>Going to PRI would give you the 50000 to 52000's
>that others are talking about. Unfortunately, I cannot do PRI with my
>DMS-10 yet so much of this is derived from what I've heard others say about
>their connect speeds and circuits. If anyone has gotten connect speeds
>above 42-44k on channelized T1 I would love to know how and what switch the
>telco is serving these maxes with.
==================================================
You're right on target. We use a DMS10, but have a POP set up in a location
served by a DMS100, so we use T1PRI there. The highest connect speed I've
seen on the 10 was 42000, and it was very unreliable. The usual is 40000.
We just upgraded to the generic release that allows ISDN BRI, and I've been
told that the PRI feature will be available around July-Sept of 98. That's
gonna be nice, although I still would like to vent my spleen at USR and
Rockwell for pushing a technology that is flakey at best.
Tom Gwilt <tomgwilt@suite224.net> <support@suite224.net>
Internet Services Director
Suite 224 Internet - a division of the Conneaut Telephone Company
++ Ascend Users Mailing List ++
To unsubscribe: send unsubscribe to ascend-users-request@bungi.com
To get FAQ'd: <http://www.nealis.net/ascend/faq>
Follow-Ups: