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The instance panel shows summary information about the ONOS instances in the cluster. The panel visibility can be toggled with the 'I' key.

Summary Panel

The summary panel shows a brief summary of properties of the network.

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The D3 Force Layout algorithm is used to provide a reasonable initial layout of the nodes and links, in the absence of any other spatial information. The As an example, the following image shows a (free-floating) network of 25 nodes:

Uploading

Longitude/Latitude The onos-topo-cfg script command can be used to upload topology meta-data to the server. This can include longitude/latitude information for each of the nodes to the server causes the server to send node updates to the GUI with positions calibrated to the background map:. 

cd ~/onos-next/tools/test/topos

onos-topo-cfg localhost attmpls.json

On receipt of the data, the server sends node updates to the GUI. On the GUI side, the longitude/latitude data is used to calibrate node positions with the background map:

Mouse Gestures

A node (device/host) may be manually repositioned (and pinned into place) by clicking on it and dragging it.

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