--- Bryan Batchelder <[EMAIL PROTECTED]> wrote: > http://www.microsoft.com/windows2000/docs/NLBtech2.doc
Thanks Bryan. I realized that I've actually skimmed this document before - I'll take the trouble to read it fully this time! "When inspecting an arriving packet, all hosts simultaneously perform a statistical mapping to quickly determine which host should handle the packet. The mapping uses a randomization function that calculates a host priority based on the client’s IP address, port, and other state information maintained to optimize load balance. The corresponding host forwards the packet up the network stack to TCP/IP, and the other cluster hosts discard it. The mapping does not vary unless the membership of cluster hosts changes, ensuring that a given client’s IP address and port will always map to the same cluster host. However, the particular cluster host to which the client’s IP address and port map cannot be predetermined since the randomization function takes into account the current and past cluster’s membership to minimize remappings." That's the answer I was looking for. Having read it, it reaffirms my opinion that NLB is a very worthy technology. :-) Peter __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com You can read messages from the DOTNET archive, unsubscribe from DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com.
