Re: tictech: Minutes and bandwidth

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-tictech message:

on 4/2/02 7:58 AM, Rockwell, Neil at nrockwell@seattleschools.org wrote:
> Wes,
> As I understand it, the bandwidth connecting the district to the K-20
> network beyond the SSD is substantially less than what connects the
district
> facilities together within the WAN. We reach out from the district with a
> total shared bandwidth of 6mbps while the bandwidth within the WAN is
> considerably more. The server replication and authentication of users on
the
> Seattleschools domain should occur far faster then our connections to the
> internet (I hope).
>
> I drew a little diagram that crudely illustrates where the internet
> congestion mainly occurs to and from the district. Check it out on the
> following link.
>
>
http://inside.seattleschools.org/area/main/network/Internetcongestiondiagram
> .pdf
>
> Neil I. Rockwell
> Technology Coordinator
> Asa Mercer Middle School
> Seattle School District
> 206.252.8032
> nrockwell@seattleschools.org

(cut - ma)

What you say all sounds logical, however life on the network for data is
affected by several variables one of which is bandwidth but by no means the
only thing.

--
Other considerations include things like local network speeds in a building.
The number and kind  of protocols running on that network
The amount of actual overhead  consumming bandwidth.
The quality of the wiring including the punchdowns
Whether high traffic loads are segmented or given a direct path to a server
or the internet connection
The actual speed of the bus that the ethercard  is attached to and whether
the card has extra buffer space.
The bus speeds on the main board
The speed of the processor and whether it does secondary caching
The speed of hard drives on the servers
The amount of memory on a server
These are a few of the things that i can think of just off the top of my
head that will affect performance.
currie morrison <buck63@attbi.com>
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