GSLB is responsible for loadbalancing users across PoPs. That usually means sending each user to the closest PoP, unless it is over capacity or under maintenance.

GSLB is called the “most important part” here because if it misroutes users to the suboptimal PoPs frequently, then it makes the Edge network useless, and potentially even harms performance.

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Dropbox traffic infrastructure: Edge network | Dropbox Tech Blog
e can just brute-force through it and get a definitively optimal result instead of the one that can get stuck on a local optimum. GSLB Let’s start with the most important part of the Edge—GSLB. <span>GSLB is responsible for loadbalancing users across PoPs. That usually means sending each user to the closest PoP, unless it is over capacity or under maintenance. GSLB is called the “most important part” here because if it misroutes users to the suboptimal PoPs frequently, then it makes the Edge network useless, and potentially even harms performance. The following is a discussion of commonly used GSLB techniques, their pros and cons, and how we use them at Dropbox. BGP anycast Anycast is the easiest loadbalancing method that relies