n00b anycast question
I have a situation where I have 3 datacenters, 2 with one provider and 1 with another provider. Each of these datacenters has its own unique BGP ASN. With a GTM, how can I have one IP address serve to the closest datacenter? On the GTM, I'd like to put in an a.b.c.d anycast IP address and have it serve the nearest datacenter location. Is there any upstream routing or configs by my provider necessary to make this work? thanks in advance, Roger