Communication control device, communication control system, communication control method, and communication control program that selects a function to be used from failure recovery functions superposed by layer
First Claim
1. A communication control device that, when a communication failure occurs at a place in a first path for the communication that extends across a plurality of communication layers,selects a second path from a candidate group including one or more candidate second paths for continuing communication without going via the place where the communication failure has occurred, based on required times for switching from the first path to the one or more candidate second paths, andsends an instruction for switching from the first path to the selected second path of the candidate second paths and continuing communication to a communication device for performing the switching,wherein the required times are estimated for each one of the candidate second paths, and one of the candidate second paths is selected as the selected second path based on its estimated required time, andwherein the estimated required time of the selected second path is smaller than a time at which data retransmission caused by the communication failure occurs.
1 Assignment
0 Petitions
Accused Products
Abstract
A communications control device that, if a communications failure occurs at location in a first path for communications that extends across a plurality of communications layers, selects any second path from a candidate group including at least one second path for continuing communications without going via the location where the communications failure has occurred, on the basis of the time required for each second path to switch from the first path to the second path, and sends, to a communications device for performing the switching, an instruction for switching the first path to the selected second path and continuing communications.
-
Citations
20 Claims
-
1. A communication control device that, when a communication failure occurs at a place in a first path for the communication that extends across a plurality of communication layers,
selects a second path from a candidate group including one or more candidate second paths for continuing communication without going via the place where the communication failure has occurred, based on required times for switching from the first path to the one or more candidate second paths, and sends an instruction for switching from the first path to the selected second path of the candidate second paths and continuing communication to a communication device for performing the switching, wherein the required times are estimated for each one of the candidate second paths, and one of the candidate second paths is selected as the selected second path based on its estimated required time, and wherein the estimated required time of the selected second path is smaller than a time at which data retransmission caused by the communication failure occurs.
-
9. A communication control method performed by a communication control device, comprising:
-
selecting, when a communication failure occurs at a place in a first path for communication that extends across a plurality of communication layers, a second path from a candidate group including one or more candidate second paths for continuing communication without going via the place where the communication failure has occurred, based on required times for switching from the first path to the one or more candidate second paths; and sending an instruction for switching from the first path to the selected second path of the candidate second paths and continuing communication to a communication device for performing the switching, wherein the required times are estimated for each one of the candidate second paths, and one of the candidate second paths is selected as the selected second path based on its estimated required time, and wherein the estimated required time of the selected second path is smaller than a time at which data retransmission caused by the communication failure occurs. - View Dependent Claims (10, 11, 12, 13, 14)
-
-
15. A non-transitory computer readable medium storing a communication control program causing a computer to serve as a communication control device that, when a communication failure occurs at a place in a first path for communication that extends across a plurality of communication layers, selects a second path from a candidate group including one or more candidate second paths for continuing communication without going via the place where the communication failure has occurred, based on required times for switching from the first path to the one or more candidate second paths, and sends an instruction for switching the first path to the selected second path of the candidate second paths and continuing communication to a communication device for performing the switching,
wherein the required times are estimated for each one of the candidate second paths, and one of the candidate second paths is selected as the selected second path based on its estimated required time, and wherein the estimated required time of the selected second path is smaller than a time at which data retransmission caused by the communication failure occurs.
Specification