MIBs define what data you can collect. OIDs identify specific data points.
MIB (Management Information Base) is a text file that describes available variables. Standard MIBs cover common metrics. Vendors provide MIBs for device-specific data.
OID (Object Identifier) is a unique number that names each variable. OIDs form a tree structure:
- is sysDescr (system description)
- is ifInOctets (interface input bytes)
Your monitoring tool uses MIBs to translate OIDs into readable names. Load vendor MIBs to access device-specific metrics.