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satish_txt_2254's avatar
satish_txt_2254
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Jan 03, 2018

AWS ELB vs F5 SSL TPS calculation

We are running AWS ELB in cloud and now planning to bring it to our datacenter and it is going to be F5.   Now i need to understand ELB first to understand how much request we are processing and T...
application delivery
BIG-IP
elb
LTM
ssl tps
Hannes_Rapp's avatar
Hannes_Rapp
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Hello,

 

Reference: https://www.f5.com/pdf/products/big-ip-platforms-datasheet.pdf

 

  • Based on first observation, I'd say i5800

800K SSL TPS is a definite overkill. I assume your apps are HTTP1.1 that can re-use same TCP and SSL session for multiple L7 requests. Can you also paste "EstimatedALBNewConnectionCount"? Currently it's greyed out in your upper graph.

 

That lower graph shows you "L7 Requests per second" that you can refer to in hardware datasheet. Graph shows a peak of 800K but you definitely need more to cover peak activity months/hours of the year. You also need some room for growth and not spend dollars for hardware that you outgrow in 1 year. Assume 1.6M L7 requests your requirement when making a decision.

 

satish_txt_2254's avatar
satish_txt_2254
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Jan 05, 2018

Does F5 cache XML style data? we have many clients coming all over the world and they ask for piece of info in xml format amd 90% they ask for same call and same data they get back it would be good if F5 do some caching magic so it will offload work from web servers but i believe in 

SSL
caching won't work right?