Management system, management apparatus, management method, and program
A management system includes a first management node configured to instruct a second management node to perform processing for managing resources for a virtualised network function and the second management node configured to perform, in response to an instruction from the first management node, the processing for managing the resources for the virtualised network function. In the management system, when the second management node is in congestion, at least one of the first management node and the second management node performs processing for suppressing communication traffic between the first management node and the second management node.
1. A NFV MANO (Management and Orchestration) system comprising:
a NFVO (Network Functions Virtualisation Orchestrator)/VNFM (Virtualised Network Functions Manager) that instructs a VIM (Virtualised Infrastructure Manager) to perform processing for managing resources for a virtualised network function; and
the VIM that performs, in response to an instruction from the NFVO/VNFM, the processing for managing the resources for the virtualised network function, wherein,
the NFVO/VNFM calculates, based on a history of response time including a predetermined number of response times, an average value of the response times, and determines, when a response time of the VIM exceeds the average value, that the VIM is in congestion,
when the VIM is in congestion, at least one of the NFVO/VNFM and the VIM performs processing for suppressing communication traffic between the NFVO/VNFM and the VIM, and
when the VIM is in congestion, the VIM secures resources for the virtualised network function with a functional configuration smaller than a functional configuration requested by the NFVO/VNFM.
2. The NFV MANO system according to claim 1 , wherein, when the VIM is in congestion and the processing for managing the resources for the virtualised network function is instructed from the NFVO/VNFM, the VIM reserves performance of the instructed processing and suspends the performance of the instructed processing until the congestion is solved.
3. A management method performed by a NFV MANO system including a NFVO/VNFM and a VIM, the management method comprising,
determining, based on a statistic of response times of the VIM, whether or not the VIM is in congestion,
extending a response wait time from the VIM when the VIM is in congestion,
suppressing communication traffic between the NFVO/VNFM and the VIM when the VIM is in congestion, and
securing resources for a virtualised network function with a functional configuration smaller than a functional configuration requested by the NFVO/VNFM when the VIM is in congestion,
wherein the NFVO/VNFM that instructs the VIM to perform processing for managing resources for the virtualised network function and the VIM that performs, in response to an instruction from the NFVO/VNFM, the processing for managing the resources for the virtualised network function.
4. The management method according to claim 3 , the management method comprising,
reserving performance of the processing for managing the resources for the virtualised network function and suspending the performance of the instructed processing until the congestion is solved when the VIM is in congestion.
5. A non-transitory computer-readable storage medium storing a program executed by a NFV MANO system including a NFVO/VNFM and a VIM, the program causing the NFV MANO system to perform processing for:
determining, based on a statistic of response times of the VIM, whether or not the VIM is in congestion,
extending a response wait time from the VIM when the VIM is in congestion,
suppressing communication traffic between the NFVO/VNFM and the VIM when the VIM is in congestion, and
securing resources for a virtualised network function with a functional configuration smaller than a functional configuration requested by the NFVO/VNFM when the VIM is in congestion,
wherein the NFVO/VNFM that instructs the VIM to perform processing for managing resources for the virtualised network function and the VIM that performs, in response to an instruction from the NFVO/VNFM, the processing for managing the resources for the virtualised network function.
6. The non-transitory computer-readable storage medium storing the program according to claim 5 , the program causing the NFV MANO system to perform processing for:
reserving performance of the processing for managing the resources for the virtualised network function and suspending the performance of the instructed processing until the congestion is solved when the VIM is in congestion.