[K12OSN] Some trouble with flash apps

Petre Scheie petre at maltzen.net
Fri Nov 17 14:30:11 UTC 2006


I suspect the bottleneck is in the 100mb-switch-to-gigabit-switch link, which will only 
be 100mb, meaning the clients are all sharing a single 100mb link.  You really need a 
switch that integrates a gigabit port with the 100mb ports in a single fabric.  To test 
the theory, try plugging your clients into the gigabit switch.  Make sure they get a 
100mb connection.  Most switches will automatically drop to the max speed of the client, 
but I've seen some cheap gig switches, e.g., Netgear, not do so and cause problems for 
the clients.

Petre


Grodeon, Steve R wrote:
> I checked just to make sure everything was as i thought; our server is connected to a gigabit switch which hooks into a 100mps switch in the lab.  Our server is connected at 1gbps and the clients are 100mbps.  But the thing is, we can even notice lag when one client is connected, 2 clients make the computer practically unusable for flash games.  Our server is a brand new dual core with fairly high end specs if that helps.
> 
> 
> -Steve Grodeon-
> 
> 
> 
> 
> -----Original Message-----
> From: k12osn-bounces at redhat.com on behalf of Petre Scheie
> Sent: Thu 11/16/2006 4:17 PM
> To: Support list for open source software in schools.
> Subject: Re: [K12OSN] Some trouble with flash apps
>  
> Does your server have a gigabit card for connecting to the clients?  You need gigabit 
> *in the server* if you have more than five or six clients.  The clients can each be 
> 100mb.  Use a switch with 24 100mb ports and one or two gigabit ports ($100 at 
> newegg.com) and plug the server into the gigabit port.
> 
> Petre
> 
> Grodeon, Steve R wrote:
>> I am using ltsp 4.2 at my school and have everything setup very nice.  The only issue I am having is that flash apps are fairly laggy, especially when more than one user is on.  I am more specifically referring to flash games, as this is a college and many people like to play flash games.  We have a 100mps network and all the thin clients have ati video cards that get detected fine.  They work fine on the actual server itself so I'm not sure if it's a network issue or what.
>>
>> -Steve Grodeon-
>>
>>
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