Comparing Technique

Which technique is best? For most Internet services (such as web hosting) where request packets are often short and response packets usually carry large amount of data, a VS/TUN load balancer can easily schedule over 100 real servers and won't become the bottleneck of the system. The load balancer just directs requests to the servers and the servers reply to the clients directly. While VS/TUN requires servers to support the IPi tunneling protocol, the IP tunneling protocol is becoming a standard of all operating systems, and VS/TUN should be usable with servers running operating systems other than Linux.