METHOD AND FARM LOAD BALANCING DEVICE FOR ESTABLISHING A BI-DIRECTIONAL SERVER TO SERVER COMMUNICATION AND COMPUTER PROGRAM THEREOF

摘要

The method comprises creating a single point in a communication flow, by a first farm load balancer, that both communication sessions requested by a client server A and a client server B at a network layer will pass through; creating stickiness based on said communication session requests and creates a bi-directional affinity by correlating the communication session requests of different sessions and maintaining a correlation mapping.

主权项

1. Method for establishing a bi-directional server to server communication, wherein a first farm load balancer having associated a plurality of client servers performs following steps:
a) receiving a first application level protocol request from at least one of said clients servers to start a first communication session with any of a client server associated to a second farm load balancer, said first application level protocol request including information parameters at least including a session ID (ID_A) that identifies said client server; and b) sending said first application level protocol request to a client server through said second farm load balancer, and said client server responding to the first application level protocol request through said second farm load balancer, characterized in that said first farm load balancer further performs following steps: c) receiving a second application level protocol request from said server to start a second communication session with the client server, said second application level protocol request including information parameters at least including a session ID (ID_B) that identifies the client server and the session ID (ID_A) that identifies the client server; d) checking in said received second application level protocol request if the session ID (ID_A) that identifies the client server matches with the one included in the first application level protocol; and e) in case of matching, sending said second application level protocol request to the client server, enabling the later for a response.