libsnmp-base - 5.9+dfsg-4+deb11u1 main

The Simple Network Management Protocol (SNMP) provides a framework
for the exchange of management information between agents (servers)
and clients.
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This package includes documentation and MIBs (Management Information Bases)
for the SNMP libraries, agents and applications. MIBs contain a formal
description of the data that can be managed using SNMP and applications.
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NOTE: If you want the OIDs (Object Identifiers) to resolve to their text
description, you need to activate the non-free repository and install the
"snmp-mibs-downloader" package.