The interface is fully described here: Interface: NetRender
Network Rendering is the rendering of animations using more than one computer connected by a network.
Large and complex animations take many hours to render, even on the fastest PCs. Network rendering allows you to use the power of other 3ds Max enabled computers to speed up the process.
For additional details regarding network rendering, please see the topic "Network Rendering" in the 3ds Max User Reference.
3ds Max System Globals