The procedure of light-path calls for WDM all-optical network was analyzed without wavelength converting in
optical nodes based on L-hop path in Wavelength Routing WDM Networks, and blocking performance model was
proposed. Receivers configured in optical node were introduced in the analytical model since this factor should be
considered in the procedure of resource reserved for optical network.
Then the final numerical result show that the receiver configuration in optical nodes can distinctly improve the
blocking performance for optical network when the number of wavelengths per link is augmented with offered light load,
when the receiver number is 3/4 of the number of wavelengths multiplexed per link, The blocking probability of
light-path calls reach the minimum. it is difficult to enhance blocking performance of light-path calls even though the
more optoelectronic receivers are added.