Hi Dave,
As you say it is guesswork at this stage to say a 10mbps / 50GB/month
service is adequate. Assuming all 100 users are using the service
roughly equally, then the per user access would be 0.1mbps /
0.5GB/month. Does this seem OK? Ideally you should have some additional
info like the network usage pattern by time of day and by type of
user. Tools like cacti can gather this type of information. One problem
you may have in deploying a monitoring tool in an over committed network
is that it will just tell you that the network is 100% busy during
school hours - not too useful. With capacity planning you should always
try to size for the peak usage or some high percentage of it. Yhis is
just guesswork until you understand the user usage profiles or have a
good intuitive feel for what will be sufficient.
If you want help setting up monitoring, give be a call.
Regards, Greg
On 11-03-12 01:00 AM, Dave Watkins wrote:
Hi Folks,
One of my customers has been approached by Shaw recently. Shaw would
like to put up a cell tower on their property and very close to their
building. They have offered a lump sum per year but are not willing
to "comp" the internet access.
Currently I have 2 DSL lines onsite. One 1.5 MBit and the second is a
2.5 Mbit connection. Neither line is anywhere near the speed that it
should be. We're simply too far down the line. I'd asked Shaw for a
quote on bring in cable to their location and was told that it would
be $50,000 to the door!!
Currently we run two networks, one staff with about 20 users max with
limited wireless access and a student network with a maximum of 75
student users, the majority of them on wireless. I'm using
commercial grade access points and the main complaint is the lack of
speed, both wired and wireless. This is especially so during school hours.
Shaw has offered us 10Mbps fibre access, 50 GB/month on a 3 year term
at $395.00 per month. I'm unsure what the current usage is but I'd
expect that it will increase if we go ahead with the deal.
In addition to the two networks we might add a separate 4 systems on
another IP with a VPN connection to an Exchange server in Toronto.
I'd like to backup our file server to a remote location in the future.
So, what are your thoughts on this? Will this connection be fast
enough for us? Do you thing the 50GB a month will suffice? I realize
you are guessing but thought you may have clients in similar situations.
Thanks for your help with this one,
Dave Watkins
www.calgaryitservices.com <http://www.calgaryitservices.com>
403-701-5746
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