Abstract

In communication networks servers are duplicated for dependability reasons. To utilize then efficiently a controller distributes the load between them in a best possible way. In this paper we study dynamic load balancing based on the states of the servers at the start of the load balancing interval. The servers are modeled as M/M/1/n queuing systems. The transient loss of this system is found using renewal type of argument. This result is used for dynamic load balancing to minimize the sum of lost tasks over the load balancing interval. The result is compared with ideal load balancing and weighted load balancing of tasks to the two servers.

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