There are Four Phases of Discovery
Lets do practical to understand in better way.
> Install mid server and make sure it is up and running
> Go to discovery Schedule and click on quick discovery , Provide ip and select mid server.
1. Scanning Phase
> In this phase TCP and UDP IP port are scanned by discovery to determine which port is open and also try to get response from the open port
> It is also called Shazam phase
Now if you open it you will see which port is open and which are refused as shown below (open shazam input xml)
2. Classification Phase
> Based on port no it will classify which type of machine it is like Windows or Linux. as above port no is 135 so it will classify as windows
Now based on classification pattern were launched to fetch information about machine.
3. Identification Phase
> In this phase it will check weather the ci is already created on cmdb_ci table or not .
> In this phase IRE rule is triggered
> It prevent duplicates and ensure accurate CMDB entries.
4. Exploration Phase
> In this phase discovery collects in depth information about the device and their relationships.
You can see all these phases in ECC Queue logs
Now in Device Section you find your device which is discovered
Now in Discovery logs you can find error if there is any error occur while discovery is running.
Now to validate weather ci is discovered or not go to cmdb_ci table and check.
Thank You
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