About Cisco Mib Files; Mib Loading Order - Cisco AJ732A - MDS 9134 Fabric Switch Quick Reference Manual

About Cisco MIB Files

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Capabilities files may have implementation details for more than one software release. You need to
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match your software release to the corresponding AGENT-CAPABILITIES clause in this file.
About Cisco MIB Files
Cisco MIB files are a set of objects that are private extensions to the IETF standard MIB II. MIB II is
documented in RFC 1213, Management Information Base for Network Management of TCP/IP-based
Internets: MIB-II. Portions of MIB-II have been updated since RFC 1213. See the IETF website
http://www.ietf.org
If your NMS cannot get requested information from a managed switch, such as a Cisco switch, the MIB
that allows that specific data collection might be missing. Typically, if an NMS cannot retrieve a
particular MIB variable, either the NMS does not recognize the MIB variable, or the agent does not
support the MIB variable. If the NMS does not recognize a specified MIB variable, you might need to
load the MIB into the NMS, usually with a MIB compiler. For example, you might need to load the Cisco
private MIB or the supported RFC MIB into the NMS to execute a specified data collection. If the agent
does not support a specified MIB variable, you must find out what version of system software that you
are running. Different software releases support different MIBs.
Cisco and IETF MIBs are updated frequently. You should download the latest MIBs from Cisco.com
Note
whenever you upgrade Cisco Nexus 5000 Series switches.
This section includes the following topics:
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Cisco MIB File Directories
You can find Cisco MIBs at the following URL:
http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml
Cisco MIB files are organized into two directories: SNMPv1-SMI MIBs are in the SNMPv1 directory
and SNMPv2-SMI MIBs are in the SNMPv2 directory. Cisco also includes supported IETF-standard
MIBs at this website. Use this support list to access and download the individual MIB files.

MIB Loading Order

Many MIBs use definitions that are defined in other MIBs. These definitions are listed in the IMPORTS
section near the top of the MIB.
For example, if MIB B imports a definition from MIB A, some MIB compilers require you to load
MIB A prior to loading MIB B. If you get the MIB loading order wrong, you might get an error message
about what was imported, claiming it is undefined or not listed in IMPORTS. If you receive an error,
look at the loading order of the MIB definitions from the IMPORTS of the MIB. Make sure that you have
loaded all the preceding MIBs first.
Cisco Nexus 5000 Series MIB Quick Reference
6
for the latest updates to this MIB.
Cisco MIB File Directories, page 6
MIB Loading Order, page 6
OL-16784-01