ESTIMATION APPARATUS, SYSTEM, AND COMPUTER PROGRAM PRODUCT

摘要

According to an embodiment, an estimation apparatus includes first to fourth obtainers and an estimator. The first obtainer obtains, for each slave node, a piece of synchronization information in a network configuration including: nodes including a master node serving as a time synchronization source, one or more slave nodes serving as time synchronization destinations, and relay nodes; and paths connecting the nodes. The second obtainer obtains, for each path, a piece of band information. The third obtainer obtains, for each path, a piece of traffic information. The fourth obtainer obtains, for each relay node, a piece of path information. The estimator estimates a predetermined relay node causing reduction of accuracy of time synchronization between the master node and the one or more slave nodes, based on the one or more pieces of synchronization information, the pieces of band information, the pieces of traffic information, and the pieces of path information.

主权项

1. An estimation apparatus comprising:
a first obtainer configured to obtain, for each of one or more slave nodes, a piece of synchronization information about a synchronization message for time synchronization to be communicated with a master node through at least one of a plurality of relay nodes in a network configuration including a plurality of nodes and a plurality of paths connecting the nodes, the plurality of nodes including the master node serving as a time synchronization source, the one or more slave nodes serving as time synchronization destinations, and the plurality of relay nodes; a second obtainer configured to obtain, for each of the paths, a piece of band information about a bandwidth of the path; a third obtainer configured to obtain, for each of the paths, a piece of traffic information about an amount of traffic in the path; a fourth obtainer configured to obtain, for each of the relay nodes, a piece of path information about one or more paths on the relay node; and an estimator configured to estimate a predetermined relay node that causes reduction of accuracy of time synchronization between the master node and the one or more slave nodes from among the plurality of relay nodes, based on the one or more pieces of synchronization information, the plurality of pieces of band information, the plurality of pieces of traffic information, and the plurality of pieces of path information.