Forum Discussion
I will admit, this is often met by GTM/DNS. GTM/DNS is not just for site redundancy in an active/standby state but also to serve active/active sites that serve the same content. is one of those. F5 hosts its site and content across many data centers all over the world.
BIG-IP DNS provides tiered global server load balancing (GSLB). BIG-IP DNS distributes DNS name resolution requests, first to the best available pool in a wide IP, and then to the best available virtual server within that pool. BIG-IP DNS selects the best available resource using either a static or a dynamic load balancing method. Using a static load balancing method, BIG-IP DNS selects a resource based on a pre-defined pattern. Using a dynamic load balancing method, BIG-IP DNS selects a resource based on current performance metrics collected by the big3d agents running in each data center.
If you are looking to use only LTM it may become difficult. As sent in my DM, I will try and provide additional details though you should really see if your organization or customer would be interested in utilizing DNS/GTM as well. If you already have LTM's, it would be a fairily easy license change to include DNS or DNS and AFM using F5's better licensing model found here https://www.f5.com/pdf/licensing/good-better-best-licensing-overview.pdf.
https://support.f5.com/kb/en-us/products/big-ip-dns/manuals/product/bigip-dns-load-balancing-13-1-0/1.html https://devcentral.f5.com/articles/what-is-big-ip-dns-26999
Hi Steve,
Thanks a lot for your response.
For now, as GTM is yet not in the picture, I will check for the option of creating multiple traffic groups on LTM and place all LTMs within the same device group and based on the application and environment requirement, I will configure LTM traffic groups to be either Active or Standby for VIPs.
Example : LTM1 , LTM2 (in DC1) ...LTM3,LTM4(in DC2).
VIPs configured as Active under traffic group in LTM1 will be configured as standby in LTM3...and so on..
Just a thought. Let me know if this will fulfill the requirement.
Thanks, Dayesh