|
Posted by 00_CumPeeWearD12 on February 13, 2005, 1:36 pm
If you were Registered and logged in, you could reply and use other advanced thread options
Say, I have a T1 1.554 Mbps, how do I know if I have enough for my
company?
For example, I have 50 employees, some people using video conferencing,
some using WebEx, some checking email and surfing the net, some people
downloading stuff. They maybe doing at the same time or maybe not. Is there
a general formula or a way on how to check a line is "enough"? how? I
want some solid numbers.
C.P.
|
  | |
Posted by Morten Reistad on February 13, 2005, 11:00 pm
If you were Registered and logged in, you could reply and use other advanced thread options
>
>Say, I have a T1 1.554 Mbps, how do I know if I have enough for my
>company?
>
>For example, I have 50 employees, some people using video conferencing,
>some using WebEx, some checking email and surfing the net, some people
>downloading stuff. They maybe doing at the same time or maybe not. Is there
>a general formula or a way on how to check a line is "enough"? how? I
>want some solid numbers.
There is no formulas that can cater for such unknowns. Remember that
the Internet is still growing close to exponentially. The US doubling
rate is up above a year, but elsewhere it may be down to the 7 months
level.
I use more than 1 T1 for my own stuff, and I am just using personal
stuff. OK, some video and large web pages help to consume bandwidth.
E-mail is difficult to give a firm figure for. A simple, text only
e-mail is only a few K, but once you start hauling large office documents
or cad drawings around they can extend to hundreds of gigabytes, each.
It may be doable witl a T1 for a company of 50; but it will need work with
dicipline.
Some figures : VOIP consumes from 18 to 88 kilobits/sec per active voice call,
depending on the level of compression. With video the figure is 128k to around
4 mbit. Usually they are in the 348k-1m area. If it is 384 or 1m will
probably be a make-or-break figure for your case.
You will anyway need a firewall that can prioritize traffic in and outgoing,
and can do bandwidth enforcement. If you need a cheap one, look at
OpenBSD.
-- mrr
|
|
Posted by Dale Farmer on February 14, 2005, 3:55 am
If you were Registered and logged in, you could reply and use other advanced thread options
00_CumPeeWearD12 wrote:
> Say, I have a T1 1.554 Mbps, how do I know if I have enough for my
> company?
>
> For example, I have 50 employees, some people using video conferencing,
> some using WebEx, some checking email and surfing the net, some people
> downloading stuff. They maybe doing at the same time or maybe not. Is there
> a general formula or a way on how to check a line is "enough"? how? I
> want some solid numbers.
>
> C.P.
Need more data, and if you tell me more, I'm going to start charging you
by the hour. *grins*
The quick and easy method is to wait for people to start bitching about
slow performance. When the level exceeds your tolerance level, go get
more bandwidth.
A more detailed use required logging of your connection with reasonably
sophisticated traffic analyzer software, and a business needs analysis. Neither
of which is cheap or really off the shelf formula sorts of things.
--Dale
|
|
Posted by Rick Merrill on February 14, 2005, 4:09 pm
If you were Registered and logged in, you could reply and use other advanced thread options
00_CumPeeWearD12 wrote:
> Say, I have a T1 1.554 Mbps, how do I know if I have enough for my
> company?
>
> For example, I have 50 employees, some people using video conferencing,
> some using WebEx, some checking email and surfing the net, some people
> downloading stuff. They maybe doing at the same time or maybe not. Is there
> a general formula or a way on how to check a line is "enough"? how? I
> want some solid numbers.
You may be asking the wrong question because there is never 'enough'.
What you may want to do is to use switches in your LAN so that all
telephone calls get 'priority' over data and the interference between
the two are minimized.
You didn't mention users sending important LARGE files from engineering
to drafting ;-) at the same time as a vital call is closing a sale.
|
|
Posted by Dr Balwinder Singh Dheeman on February 15, 2005, 2:11 am
If you were Registered and logged in, you could reply and use other advanced thread options
On 02/14/2005 12:06 AM, 00_CumPeeWearD12 wrote:
> Say, I have a T1 1.554 Mbps, how do I know if I have enough for my
> company?
>
> For example, I have 50 employees, some people using video conferencing,
> some using WebEx, some checking email and surfing the net, some people
> downloading stuff. They maybe doing at the same time or maybe not. Is there
> a general formula or a way on how to check a line is "enough"? how? I
> want some solid numbers.
Use mrtg (Multi Router Traffic Grappger) or Cacti, these are free
software; free as in freedom and even as in free bear.
--
Dr Balwinder Singh Dheeman Registered Linux User: #229709
CLLO (Chief Linux Learning Officer) Machines: #168573, 170593, 259192
Anu's Linux@HOME Distros: Ubuntu, Fedora, Knoppix
More: http://anu.homelinux.net/~bsd/ Visit: http://counter.li.org/
|
| Similar Threads | Posted | | Internet ISP provider | June 12, 2007, 11:38 am |
| Integrated ISDN? voice,fax,internet | June 16, 2008, 6:16 am |
| Enjoy total privacy on the internet | October 16, 2008, 12:49 pm |
| Fractional PRI: How do I get the data lines to serve internet to lan | April 14, 2006, 4:10 pm |
| Localised broadband to improve International Internet | May 25, 2006, 12:09 pm |
| Any free VoIP internet-phone calling left ? | May 11, 2005, 8:57 pm |
| Any recommendations re: economy internet phone service- Vonage / Skype ? | February 6, 2005, 9:17 am |
| Historical Significant Internet Communications Technology:PSTN quality NextGen TCP/IP | February 6, 2005, 5:08 am |
| Voip Over High Speed Internet Access,Voip Updated Howto, | June 28, 2006, 9:21 pm |
| Virtual PBX,Private Phone Systems,PBX Sip,Phone Switches,Pabx,Free Internet Calls | May 20, 2006, 7:41 pm |
|
|
NewsGroups 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML site map