Router, content server non-delivery time of a cache usage and program of

摘要

When the server it is arrival impossible with network fault in, the router which the contents required node that tries can acquire the contents is offered. When contents required message in order to require the aforementioned contents data to means and the aforementioned contents server address which store the contents data which is included in the contents response message which is transmitted from the contents server was transmitted from the contents required node, MBC configuration required message in order to configurate information of induction in order to transfer aforementioned contents required message to our router to the other router was transferred, when the aforementioned contents server non- with becoming, contents required message in order to require the aforementioned contents data of means and the aforementioned contents server address which are broadcast to the other router following to the information of aforementioned induction, if is,The contents response message which includes the contents data which is stored is had the means which reply and.