NSX ALB. GSLB site persistence + 307 redirect headers

[alex-tyatyukhin]

Hi all,

I'm just planning to load balance my horizon infra and have a question about GSLB site persistence + 307 redirect headers.

I have two datacenters and want to build active/active VDI infra with single namespace.

Without enabling 307 redirect headers from UAGs GSLB site persistence is strongly recommended to be used.

But what if I use 307 redirect headers from UAGs? Each of UAGs sends its own 307 redirect header to clients (site1.company.com:portX or site2.company.com:portX) GSLB site persistence is still required?

[Bogdan_Ionut]

Yes - GSLB site persistence is still required, even if you use 307 redirects from UAGs. The 307 redirect does not replace GSLB site persistence; it solves a different problem.

Even when using 307 redirect headers from UAGs, GSLB site persistence is still required. The 307 redirect ensures application-level session pinning, while GSLB persistence ensures DNS-level site consistency. Without GSLB site persistence, clients may be redirected back to a different site on subsequent DNS lookups, causing session instability.

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