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Forum Discussion

Kun-Te_Chou's avatar
Kun-Te_Chou
Icon for Nimbostratus rankNimbostratus
Mar 27, 2018

AWS Auto Scaling for LTM

Hi ALL,   After I watched the introduction of AWS Auto Scaling for BIG-IP VE by the following link, I still have one question. https://support.f5.com/csp/article/K60112332   According to its ex...
aws
cloud
LTM
Jeff_Giroux_F5's avatar
Jeff_Giroux_F5
Ret. Employee
Jan 07, 2020

The autoscale BIG-IP instances will sync configs. You can review the github templates README for more info on clustering. It happens automatically via CFT template deployment.

 

https://github.com/F5Networks/f5-aws-cloudformation/tree/master/supported/autoscale/waf/via-lb/1nic/existing-stack/payg

 

Your questions...

Who will assign the request to the LTMs?

-Yes, it will be an ELB in tier 1 doing basic L4 traffic distribution to tier 2 BIG-IP instances.

 

How does the member server know its return traffic?

-Each BIG-IP instance has its own IP config. There is no sharing of floating IPs. Therefore, each BIG-IP instance will send traffic to the backend server via its own unique self-IP. Return traffic from server to BIG-IP will talk to the AWS cloud hyervisor and route appropriately to the correct BIG-IP instance.