Network load balancing and overload control

The is claimed and SIP-based the network or comprising a load balancing and overload control technology for multiple servers' the types' for network. The load balancing process; the first server receiving feedback information from at least one first and second downstream server, wherein first and second downstream servers volume and servers corresponding first and second groove by between the first servers; the feedback information comprises jam for measuring corresponding downstream server. The first server based on the feedback information of a to receive the dynamically adjusting message routing process, so that the number of downstream compensating unit and imbalance between jam measurements. The overload control technology, the first server by a supporting the passage of information from the feedback information at least downstream server, receiving is used for is a user agent.