Message-switching networks with alternate routing / Netze mit Speichervermittlungen und alternativer Leitweglenkung

In modern data networks variable routing strategies allow to take into account the instantaneous traffic situation of the network. Traffics offered to a direct "primary" route can be described realistically by means of Poisson traffic and therefore all characteristic traffic values can be determined by means of well known formulas. However, traffics overflowing from a primary to a secondary route possess quite other stochastic properties than Poisson traffic. This paper shows, how to dimension storeand forward networks with alternate routing, taking into account th? special properties of overflow traffic. Artificial traffic trials show the good accordance between simulated and calculated traffic values.