Communication system, management device, network node, and communication method

A first management device managing a plurality of first network nodes, the first management device not being configured to receive operation information from a plurality of second network nodes managed by a second management device, at least one of a plurality of first network nodes and at least one of a plurality of second network nodes being configured to communicate with each other via a predetermined interface, the first management device comprising:

• one or more processors configured to select a first network node as a designated network node from among the plurality of first network nodes, the designated network node acquiring operation information on a second network node managed by the second management device via the predetermined interface;
• and
• a communication device configured to receive the operation information on the second network node from the designated network node.

A communication method in a network that includes a plurality of first network nodes managed by a first management device and a plurality of second network nodes managed by a second management device, the first management device not being configured to receive operation information from the plurality of second network nodes, at least one of the first network nodes and at least one of the second network nodes being configured to communicate with each other via a predetermined interface, the method comprising:

• selecting, by the first management device, a first network node as a designated network node from among the plurality of first network nodes, the designated network node being configured to acquire operation information from a second network node managed by the second management device via the predetermined interface and being configured to transmit the operation information on the second network node to the first management device;
• and
• receiving, by the first management device, the operation information on the second network node from the designated network node.

A program, embedded on a non-transitory computer-recording medium, causing a computer to function as a first management device managing a plurality of first network nodes, the first management device not being configured to receive operation information from a plurality of second network nodes managed by a second management device, at least one of a plurality of first network nodes and at least one of a plurality of second network nodes being configured to communicate with each other via a predetermined interface, the computer being caused to implement the functions of:

• selecting a first network node as a designated network node from among the plurality of first network nodes, the designated network node being configured to acquire operation information on a second network node managed by the second management device via the predetermined interface;
• and
• receiving the operation information on the second network node from the designated network node.