  Development of optimal control procedures for congested networks is a key
factor in maintaining efficient network utilization. The absence of congestion
control mechanism or its failure can lead to the lack of availability for
certain network segments, and in severe cases -- for the entire network. The
paper presents an analytical model describing the operation of the TCP Reno
congestion control algorithm in terms of differential calculus and queuing
systems. The purpose of this research is to explore the possibilities and ways
of increasing the virtual channel capacity utilization efficiency in a lossy
environment.
