We study the impact of wavelength conversion capability on wavelength routi
ng WDM networks with fixed shortest-path routing. We propose a method for i
mplementing wavelength routing in a WDM network with partial wavelength con
version capability, Simulation results show that such partial wavelength co
nversion networks provide a performance in between that of wavelength conti
nuous networks and those with full conversion capability. In addition, it c
an be seen that only limited wavelength conversion capability is enough to
provide a performance close to that of a network with full conversion, Anal
ytical and simulation bounding results for the full and no conversion cases
have also been provided.