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Netmap is the vlanPlot (TrafficMap) replacement currently under development.
Included in NAV 3.4 is a beta-version of Netmap, it includes these features:
Dynamic generation of network-topology based upon prefixes for gwports, and the to_swportid field for swports (discovered by networkDiscovery).
Fetching of rrd-load data for links between netboxes
View load based upon relative usage or on fixed rates (0-100, 100-512,512-2048,2048-4096,>4096 Mbit/s) - the rates are hardcoded, but can be made configurable on high demand.
Filtering of netboxes based on categories. These categories are set from the categories you have in the database.
Searching. One can search after netboxes based on sysname, room or ip.
Freezing of layout to preserve cpu-load. The layout-engine does require some cpu-power, so enabling this when your satisfied with the layout is a good idea.