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Overview
Network Device Monitoring uses profiles to tell the Datadog Agent the metrics and associated tags to collect. A profile is a collection of OIDs associated with a device.
Configuration
By default, all profiles in the Agent configuration directory are loaded. To customize the specific profiles for collection, explicitly reference them by filename under definition_file, or provide an inline list under definition. Any of the Datadog profiles can be listed by name. Additional custom profiles can be referenced by the file path in the config, or placed in the configuration directory.
Note: The generic profile is generic-device.yaml, which supports routers, switches, etc.
sysOID mapped devices
Profiles allow Network Device Monitoring to reuse metric definitions across several device types or instances. Profiles define metrics the same way as instances, either inline in the configuration file or in separate files. Each instance can only match a single profile. For example, you can define a profile in the init_config section:
init_config:
profiles:
my-profile:
definition:
- MIB: IP-MIB
table: ipSystemStatsTable
symbols:
- ipSystemStatsInReceives
metric_tags:
- tag: ipversion
index: 1
sysobjectid: '1.3.6.1.4.1.8072.3.2.10'
Then either reference it explicitly by name, or use sysObjectID detection:
instances:
- ip_address: 192.168.34.10
profile: my-profile
- ip_address: 192.168.34.11
# Don't need anything else here, the check will query the sysObjectID
# and use the profile if it matches.
If necessary, additional metrics can be defined in the instances. These metrics are collected in addition to those in the profile.
Metric definition by profile
Profiles can be used interchangeably, meaning devices that share MIB dependencies can reuse the same profiles. For example, the Cisco c3850 profile can be used across many Cisco switches.
For more Datadog provided profiles, see the GitHub repository.
Further Reading
Additional helpful documentation, links, and articles:
