US 12,224,942 B2Granted

Network management systems, edge devices, network management devices, and programs

AssigneeNippon Telegraph and Telephone Corporation

InventorsTatsuya Fukui, Katsuya Minami, Yuki Sakaue

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Abstract

An object is to provide a network management system and the like capable of being introduced into an existing network to ascertain an instantaneous traffic variation in the network. The scheme of the present invention uses a shaping function included by each edge apparatus. The shaping function controls packet transmission in a millisecond order. The network management apparatus according to the present invention adds up the amount of transmitted packets for each control period reported by each edge apparatus and estimates this as an instantaneous traffic amount in the network. In the scheme, it is only necessary to add one network management apparatus to an existing network and to cause each edge apparatus to report the amount of transmitted packet to the network management apparatus.

Claims6

Dependent claims

A network management system comprising:

a plurality of edge apparatuses connected to a network;
and
a network management apparatus connected to the plurality of edge apparatuses,
wherein
each of the plurality of edge apparatuses comprises a network interface, at least one processor, and a memory connected to the processor, the at least one processor configured to include
a shaping function configured to transfer a packet input from a user apparatus to the network using a token bucket algorithm,
a token supply amount control function configured to supply a token to the shaping function, and
a notification function configured to store the amount of tokens supplied by the token supply amount control function to the shaping function and notify the network management apparatus of data including a time point and an instantaneous throughput value calculated from the total amount of tokens in every set notification cycle, and
the network management apparatus comprises a network interface, at least one processor, and a memory connected to the processor, the at least one processor configured to include
an acquisition function configured to acquire the data from each of the plurality of edge apparatuses, and a management function configured to add up instantaneous throughput values of all the data at an identical time point and regard a sum of the instantaneous throughput values as an instantaneous traffic amount at the identical time point in the network.

7 more elements

Dependencies are inferred from the claim text.