In the examples shown so far, remote services or files are located on known nodes or at known pathnames. For example, the serial port on lab1 is found at /net/lab1/dev/ser1.
GNS allows you to locate services via an arbitrary name wherever the service is located, whether on the local system or on a remote node. For example, if you wanted to locate a modem on the network, you could simply look for the name “modem.” This would cause the GNS server to locate the “modem” service, instead of using a static path such as /net/lab1/dev/ser1. The GNS server can be deployed such that it services all or a portion of your Qnet nodes. And you can have redundant GNS servers.