| 摘要 |
PROBLEM TO BE SOLVED: To suppress the number of tags for identifying a route for the unit of a service and to eliminate the need to install a load distribution device for each service when implementing service chaining over a large scale network.SOLUTION: A tag allocation server 10 changes a core number of a service provision server that can be allocated for each virtual machine, multiplies an allocation core number to be allocated to the virtual machine and an accommodation user number for each core to calculate an original accommodation user number, calculates a largest exponent of 2 within such a range that does not exceed the original accommodation user number, as a deemed accommodation user number and calculates accommodation efficiency in that core number. The tag allocation server 10 then determines a core number with highest calculated accommodation efficiency among the core numbers with the changed ranges as an allocation core number to the virtual machine in that service, determines a deemed accommodation user number in this allocation core number as an accommodation user number for each virtual machine and generates a tag.SELECTED DRAWING: Figure 5 |
