Use the information below for troubleshooting Datadog Network Device Monitoring. If you need additional help, contact Datadog support.
IF-MIB(interface MIB) contains all the OIDs for descriptive information about a device’s interface.
Datadog supports all three versions of SNMP: SNMPv1, SNMPv2, and SNMPv3.
Datadog uses SNMP to discover devices. During discovery, the SNMP port (default 161) is polled. If there’s a response and a profile to match, this is considered a discovered device.
The Datadog Agent is MIB-less, meaning you don’t need to do anything with your MIBs. All metrics collected with Datadog device profiles automatically work without the MIB.
To add metrics or a custom configuration, list the MIB name, table name, table OID, symbol, and symbol OID, for example:
- MIB: EXAMPLE-MIB table: # Identification of the table which metrics come from. OID: 220.127.116.11.4.1.10 name: exampleTable symbols: # List of symbols ('columns') to retrieve. # Same format as for a single OID. # Each row in the table emits these metrics. - OID: 18.104.22.168.22.214.171.124.1 name: exampleColumn1
Datadog collects generic base-line metrics from all devices. If there are unsupported metrics from a vendor MIB, you can write a custom profile, or send a feature request to Datadog support.
If you send a feature request, Datadog support needs a
snmpwalk from the requested device. Run the following and send the output:
snmpwalk -O bentU -v 2c -c <COMMUNITY_STRING> <IP_ADDRESS>:<PORT> 1.3.6
snmpwalk -O bentU -v 2c -c <COMMUNITY_STRING> <IP_ADDRESS>:<PORT> 1.3.6from the host your Agent is running on. If you get a timeout without any response, there is likely something blocking the Datadog Agent from collecting metrics from your device.
Contact Datadog support to put in a request to support your specific model.
Extend your profiles to support additional
For example, if you want to monitor another type of Cisco CSR, you can modify the ISR profile directly to list another
sysobjectid like this:
snmpwalk -v 2c -c [community string] [ip address] 126.96.36.199.188.8.131.52
Note: If you do not know the
sysobjectid of your device, try doing an Internet search or run a
snmpwalk on a host that can reach out to your device. Use the output to list the profile to match against.