Originally Posted by znetindia
can anyone suggest architecture for this solution?
Why would anyone do that? You can get some netscalers to start which costs between 25,000$ and 300,000$.
I dont think anyone that has such an infrastructure is going to publish his plans here on a forum, specially because they cost tons of money just in paper design, ideas are worth more then anything else this days. If someone cames with a very small setup to do this I dont think he will share it with competition. There are to many ways to do this in different ways, some are cheap, some very expensive, some work, others fail all the time. But if you really are interested, this are the guys that are going to help you out: