Sustained Throughput

[Ben Suffolk]

Hello,

I am currently planning a new service, and the relevant hardware for  
it. I am after some figures on SMS throughput, both inbound and  
outbound.

My connections will be with SMSCs not modems, and will most likely be  
smpp3.4, but could in some cases be other SMSC protocols.

No messages will be answered locally by kannel, all will be pushed  
out via http to another server (on the same private LAN, so no  
network latency issues). All outbound messages will be sent via the  
http interface, no messages will be replied to via the original  
outbound http service request.

I need to know if anybody has any figures for sustained throughput,  
and peak throughput for SMS.

I'd also be interested if anybody knows the best configuration for  
maximum throughput, is it better to a a high performance server with  
several smsboxes and the bearebox, or to have a lower performance  
server (i.e cheaper) and split the smsboxes from the bearbox, and is  
it better to have multiple servers each with a single instance of an  
smsbox (this would obviously be a resilience benefit, but is it a  
performance one?)

At high throughput what resources are used by the bearerbox, and the  
smsbox. i.e memory intensive?, processor intensive?

Regards

Ben