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Aleksandar_Dimi's avatar
Aleksandar_Dimi
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Mar 17, 2015

BIG-IP Bandwidth Calculation

Hello,   Please, could someone clarify what is the real licensed bandwidth? In which direction is calculated? Is it a sum of "In" and "Out" throughput. I have BIG-IP VE 11.6, BB on 25M. Additional...
Aleksandar_Dimi's avatar
Aleksandar_Dimi
Icon for Nimbostratus rankNimbostratus
Apr 06, 2015

Hello Nitaas,

 

Thank you for your comment. Yes, I know that the traffic is divided by the number of TMMs, but it is still not clear for me how it is processed in reality. I received an official statement that If we have 25M license, it would be counted 25M per direction. Based on all information I have/understand, I could say the following throughput conclusion. If we have Big-IP on 25M with 4 CPU cores and 120 active user sessions the traffic throughput would be counted in this way:

 

25M/4 = 6.25 Mbit/s per TMM (Core) in both directions.

 

120 user sessions/4 = 30 user sessions per TMM.

 

So per one TMM will pass 30 user session with max flow of 6.25 Mbit/s. (less than 6.25Mbit/s – with 200M license and 2 cores you get 90Mbits/s per TMM https://support.f5.com/kb/en-us/solutions/public/15000/800/sol15831.html) So everything above this TMM limit would be dropped. Please, could you confirm the above and advise?

 

Regards,

 

Aleksandar