Discovery

Discovery is the process that capm uses to identify the devices on your network. Devices are identified using the IP domain, IP addresses, IP ranges, and hostnames that you specify in discovery profiles.
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Discovery is the process that 
CA Performance Management
uses to identify the devices on your network. Devices are identified using the IP domain, IP addresses, IP ranges, and hostnames that you specify in discovery profiles.
Attempts to discover devices are made through SNMP and ICMP protocols. If a device does not respond to SNMP but
does
respond to ICMP, a pingable device is created.
The following video shows the discovery process starting with the required setup:

Inventory Discovery
Inventory discovery, or device discovery identifies the following information about devices:
  • Which protocols the device responds to, SNMP or ICMP
  • The classification of the device, such as router or switch
  • The device vendor, such as Cisco or Juniper
  • The device type, such as 7700 or 8200
Discovered devices and monitored components take up to 5 minutes to begin synchronizing with
Performance Center
.
Discovered devices are automatically added to device collections depending on the rules that control each device collection membership. During the first synchronization between Data Aggregator and
Performance Center
after
devices are discovered, the devices are added to collections.
You can use two methods to discover devices:
The following workflow offers a best practice to use as a quick reference when performing a discovery of your inventory.
Perform this process as either a user with the Administrator role or as the tenant administrator.
  1. To enable the Data Collector to perform queries of device MIB tables that use SNMP, create SNMP profiles.
    For more information, see SNMP Profiles.
  2. Create discovery profiles. For more information, see Discovery Profiles.
  3. Run discovery and view the results. For more information, see Run Discovery.  
Metric Family Discovery
Metric family discovery, also known as component discovery, is a separate process that determines whether a specific metric family is supported for a device.
A metric family defines the set of metrics to collect and report on for a given technology. The values of the metrics are normalized so that reporting is uniform regardless of the data source.
Polling begins automatically after metric family discovery completes.  Operational metrics are collected and retained at regular polling intervals for reporting. Examples of operational metrics include error rate, utilization, and bytes in. Configuration data represents or identifies a component or the component configuration, such as port type or component index.
For more information, see Configure Monitoring Profiles.