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Forum Discussion

sand87ch's avatar
sand87ch
Icon for Cirrus rankCirrus
Dec 05, 2022

BigIP F5 LTM fails during Load testing

My Set up has a BIGIP single CPU hosted on AWS.This sits in front of a node API i use for load testing. Now when i send a 1K_1krpm request..i.e., 5000 requests in 5 mins to my node api via the BIG I...
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Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Dec 05, 2022

Hi sand86ch,

Can you tell us the type of errors jmeter is reporting? During TCP connects, SSL handshakes, HTTP related timeouts, TCP reset after sending HTTP requests, bad HTTP responses? 

Do you have the feeling to hit a certain hard limits, or is the error rate progressive? 

How many TCP session do you use for the Test? What is your RTT between Client and F5. HTTP/2 or HTTP/1.1 tests? 

You may explain your VS setup slightly to allow us to understand where bottlenecks could be happen? Using SNAT / SNAT Pools, using SSL-Offload, OneConnect? 

Do you see any abnormal logs in LTM? Things which only appear when load gets too high? 


Could you please reset your VS, HTTP profile and Pool statistics and share the results after a test is done? 

Lets see if we could push you in the right direction to figure out your bottleneck...

Cheers, Kai