--- TIC-TECH message:
All,
Operations has approved the use of these Allied Telesyn unmanaged switches
in the schools. The Networking guidelines REQUIRES all switches in MDF/IDF
are managed Cisco ports. The guidelines also REQUIRE that there be only one
hop from a managed port i.e., a chain that starts: Cisco port -->AT switch
--> HP Jet Direct Card is ok while: Cisco port -->AT switch --> AT switch
--> computer is bad.
Why are these switches are good?
First, it is a auto sensing 10/100 Mb full duplex switch instead of a 10 Mb
hub half-duplex, (faster, less collisions, and reset of hop count.) Second,
they have an internal power transformer and a "normal" computer power cable
to power the unit instead of a "wall wart" external transformer. Next, they
have a limited lifetime warranty. Last, they will be standard across the
entire district.
The quotes that we received from Graybar Electric Company, (425)468-5511,
are as follows:
AT-FS708 10/100 X 8 ports $065.96
AT-FS716 10/100 X 16 ports $177.69
AT-FS724i 10/100 X 24 ports $245.47
If you need to add ports at a school, your options are: 1) add ports to the
Cisco switches in the MDF or IDF; or 2) use on of the AT switch models
listed above, with the AT switch connected directly to a Cisco switch. These
options provide the best combination of quality, warranty, and price so they
have now become the district standard. Schools should no longer purchase
shared media hubs or generic switches.
Drew
Andrew J Dahlgaard
IS Project Lead & Acquisitions
Seattle School District #1
adahlgaard@seattleschools.org
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This archive was generated by hypermail 2b29 : Thu Dec 14 2000 - 15:47:15 PST