arnold@mango.synopsys.com (Arnold de Leon) (06/22/91)
This isn't a cisco specific question but it's the opinion of the
the people who use cisco's that interest me.
I am trying to select a CSU/DSU vendor. I'm interested
in units that can handle fractional T1 service. I also
will need 56K CSU/DSUs.
The initial network configuration will look something like
+------------+
| T1 Mux |
Big ----A---| |
----B---| or |<------T1------+
cisco ----C---| several | |
----D---| FT1 CSU/DSU| |
| cascaded | |
+------------+ |
|
v
Remote site A <---- 56 K DDS ----> (Network cloud ) <---> Site D
CSU/DSU & IGS ^ ^
| |
Site B <---+ +----> Site C
All the remote sites will initially be identical.
I expect to migrate the configuration in the future (as the number of sites
increase along with bandwidth demands) to frame relay. This would reduce
the number of serial ports that I will need on the cisco. I would then
split up the T1 mux (if that was modular) or distribute the cascaded
fractional T1 units to field.
I am hoping to find a vendor that can provide me short term and
long term solutions. Since I will be using cisco routers it is
important that they work well with ciscos. I looking for vendors
to consider and those to avoid. I'm mostly interested in the T1
based products since I don't expect to have the 56K units for
very long.
Two possible solutions that I am looking are
Larse Corp -- Split T
Teleprocessing Producs Inc -- TP-9000 Fractional T1 Multiplexer
Thanks in advance.
--
Arnold de Leon arnold@synopsys.com
Network Manager Synopsys Inc.
(415) 694-4183 700 E. Middlefield Road
Mtn. View, CA 94043-4033