Describe MIBs and traps
If needed, you can also download RFCs, standard MIBs, and standard traps from these locations:
Browse the SNMP Object Navigator to look up Cisco MIBs, traps, and OIDs from this location:
https://snmp.cloudapps.cisco.com/Support/SNMP/do/BrowseOID.do?local=en
In addition, download Cisco OIDs by FTP from this location: