I am setting up a web service that is expected to process ~100,000 requests per second. For this, I want to setup a reverse proxy that forwards requests to several back-end servers. The requests come from a small set of clients (~1000). Each request involves 1 KB data transfer - 750 bytes incoming and 250 bytes outgoing. Can this reverse proxy be setup on a single server? What would be the general hardware requirements for such a server?
This is a  about capacity planning for web sites. Related:      What are some recommended tools and methods of capacity planning for web sites and web-applications? Please feel free to describe different tools and techniques for different web-servers, frameworks, etc., as well as best-practices that apply to web servers in general.
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