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BCM50 Administration Guide
Appendix A
Management Information Bases
This appendix describes the Management Information Bases (MIBs) supported by the BCM50.
A MIB is a virtual information store that contains a collection of objects that are managed using
Simple Network Management Protocol (SNMP). The MIB is software that defines the data
reported by a computing or network device and the extent of control over that device.
About SNMP MIBs
A MIB enables access to the managed objects of a system. MIBs are managed using a network
management protocol, such as Simple Network Management Protocol (SNMP).
The BCM50 main unit supports the following MIBs:
• MIB-II (RFC1213)
• SNMP-FRAMEWORK-MIB (RFC2261)
• ENTITY-MIB (RFC273)
• HOST-MIB (RFC2790)
• IF-MIB (RFC2863)
• BCM Small Site MIB
• BCM Small Site Events MIB
BCM50 units equipped with an integrated router (BCM50e, BCM50a, BCM50be, and BCM50ba)
also support RFC 1231 — MIB-II and a private MIB. For more information, see the BCM50
Networking Configuration Guide (NN40020-603).
You can use BCM MIBs to monitor the network element; you cannot use BCM MIBs to configure
the element. Read-only access is provided for all supported MIB objects.
MIB file descriptions
BCM50 MIBs belong to two categories:
• Standard MIBs — include MIB-II (RFC1213), SNMP-FRAMEWORK-MIB (RFC2261),
ENTITY-MIB (RFC273), HOST-MIB (RFC2790), and IF-MIB (RFC2863)
• Nortel MIBs — include BCM Small Site MIB and BCM Small Site Events MIB