CSS and internet load balancing

[jcmartin]

Since BGP doesn't seem capable of doing it, can CSS provide load balancing between two internet connections coming from two different ISPs? If so, how would you go about doing it, and which models would you use?

[claeysg]

You can do internet load-balancing with CSS but only for incoming trafic (trafic to your web servers for example). In order to do this, you will need 3 CSS at least: one for each internet connection and one for the proximity database. Based on the user ip address, one of the two CSS will handle the request.

However, there is no way to do it for outgoing traffic. Practically, I never implement it as 3 CSS are needed as well as enhanced feature set.