How does Google Global Cache selects which cache to redirect a client?

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1

Hi,

Just wondering if anyone here I can discuss offline about Google Global Cache? I am interested in knowing how does the cache selection process takes place (i.e. how does Google know to which cache to redirect a client). I would also like to know what if I have 2 upstreams who both have GGCs installed in their network, how would the selection process takes place.

Thank you very much in advance.

Regards,

2

Have you tried experimenting programmatically to determine if its
based on which DNS servers the client is using to resolve?