Is it possible to do a command line (CLI) discovery of devices in Spectrum?

Products

• Spectrum
• Network Observability

Issue/Introduction

The following describes how to run a scripted discovery of multiple devices via the Spectrum vnmsh CLI

Environment

DX NetOps Spectrum all releases

Resolution

A command line discovery of devices would need to be scripted using a similar approach to the following:

1. Create a list of IP addresses to discover, then write a script to discover each individual IP in the list.
   For example, the list of IP addresses would be one IP (or range) per line:
   
   192.x.x.4
192.x.x.8
192.x.x.10–192.x.x.23
192.x.x.27
192.x.x.32


2. Let’s say the filename for this list is “ip_list.txt”. The script would look something like the following:
   
   

   #!/bin/sh

   ./connect

   for IP in ‘cat ip_list.txt’

   do

   ./create model ip=$IP comm=public

   done

   ./disconnect

3. If the subsequently discovered devices need to be placed in a specific container, then modify the script to grab the model handle of the newly created device and add the “create association” to associate the new model to the container:
   
   

   ./create association rel=staticGlobalCollects rmh=<mh of GlobalCollection> mh=<mh of device>

    

   For example:

   device model handle: 0x10000d1

   GC model handle:     0x100012d

    

   With the above two model handles the command would look like the following:

   ./create association rel=staticGlobalCollects rmh=0x100012d lmh=0x10000d1