| CPC H04Q 11/0062 (2013.01) [H04B 10/27 (2013.01); H04Q 2011/0086 (2013.01)] | 8 Claims |
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1. An optical communication device, the optical communication device being a master station device, the master station and a plurality of slave station devices defining a passive optical network system, the optical communication device being connected to a controller to manage communication resources in slices, the slices being virtual networks into which a network is divided, the optical communication device comprising:
a processor to execute a program; and
a memory to store the program that, when executed by the processor, performs:
a bandwidth allocating process of allocating bandwidths in the passive optical network system to the slave station devices through a plurality of allocation methods;
a slice managing process of calculating a guaranteed delay time associated with each of the allocation methods, holding the guaranteed delay time associated with each of the allocation methods, receiving, from the controller, a resource reservation request including a requested bandwidth requested to be reserved in the passive optical network system for a slice and a requested delay time in the passive optical network, and determining an allocation method associated with the resource reservation request on the basis of the requested delay time included in the resource reservation request and the guaranteed delay time for each of the allocation methods; and
a resource information generating process of holding, as resource information, an available bandwidth for each guaranteed delay time of each of the slave station devices, calculating an available bandwidth in the allocation method for a slave station device associated with the resource reservation request, on the basis of the allocation method associated with the resource reservation request and the requested bandwidth included in the resource reservation request, updating the resource information with the calculated available bandwidth, and transmitting, to the controller, the resource information as information abstracting resources in an entirety of the passive optical network system.
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