Questions about performance degradation when used with DNS features in GTM solutions

Hello,

As xuwen mentioned, DNS express will be a good fit for you as it is the next feature selected if GSLB is not matched.

There is a hierarchical mechanism on GTM for resolving queries. The first match is GSLB, the second one is DNS express, and the third option is a caching layer.

I believe using any of the above options will not have a negative impact on the performance of F5.

other options are load-balancing DNS requests to a DNS server behind the GTM, and then using the BIND DNS on GTM. So try making use of the GTM features like DNS express, GSLB, and caching layer.

Thanks,