For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

Sandeep_81274's avatar
Sandeep_81274
Icon for Nimbostratus rankNimbostratus
May 05, 2014

connection initialization...tuning initcwnd

Hi,   I've been reading several posts by Jason Rahm. I'm wondering if you can help me or anyone with experience setting tcp settings on F5. I have some questions around tcp initialization costs....
application delivery
design
LTM
performance
What_Lies_Bene1's avatar
What_Lies_Bene1
Icon for Cirrostratus rankCirrostratus
May 06, 2014

It's always hard to make recommendations without having an understanding of the bandwidth and reliability of the networks involved.

 

You seemed to have answered your first two questions yourself but don't forget to disable Slow Start. You may also want to use High Speed for Congestion Control.

 

Regarding ICWS & IRWS, a value of 10 would be appropriate on high b/w, reliable networks.

 

Regarding OneConnect I would expect (but cannot confirm) the connection metrics to be dynamic and based on current and historic conditions, not start from scratch, that would make no sense at all.