[Web4lib] public network bandwidth usage

[Lin Light]

We have two T-1's and are experiencing a similar situation. We were running 
on just one up until April, added a second and were thinking great. NOT!!!!!!!


Lin

Lin Light
Head of Computer
 & Technical Services
Herrick District Library
300 South River Ave.
Holland, MI 49423
Voice 616-355-3727
Fax   616-355-1426

---------- Original Message -----------
From: "GINTHER, Craig" <Craig.Ginther at biblioottawalibrary.ca>
To: <web4lib at webjunction.org>
Sent: Thu, 20 Dec 2007 13:57:17 -0500
Subject: [Web4lib] public network bandwidth usage

> Hello all,
> 
> We've recently seen a huge increase in bandwidth usage on our public 
> network, and are trying to determine whether this is similar to what 
> other large public libraries are experiencing.  Public PCs (approx 
> 400 in total) in all of our branches share a 100Mbps pipe, but we 
> only pay for a 10 meg service with bursting capabilities as required 
> (for a cost).
> 
> As of March 2006, we were averaging 1.5 Megs usage, with spikes to 4 
> Megs, but we're now looking at traffic during business hours 
> regularly hits 30 Mbps inbound and peaks past 40 Mbps.  Not 
> surprisingly, the most common destination appears to be various 
> Akamai.net sites, with video and image intensive sites such as 
> Facebook and YouTube also appearing as heavy users. Most of the 
> traffic is HTTP (TCP 80), followed at a distance by HTTPS (TCP 443)
>  with a small amount of instant messaging an other protocols.
> 
> Are others seeing similar increases?  If so, how many public PCs do 
> you have (for the sake of comparison)?
> 
> Craig Ginther
> Acting Manager, Virtual Library Services
> Ottawa Public Library/Biblioth&#65533;que publique d'Ottawa
> 101 Centrepointe Drive, Ottawa, Ontario K2G 5K7
> Phone: 613-580-2424 x41588
> Craig.Ginther at BiblioOttawaLibrary.ca
> http://www.BiblioOttawaLibrary.ca
> 
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------- End of Original Message -------