HP Cisco Nexus 5000 Cisco Nexus 5000 Series MIB Quick Reference (OL-16784-01, - Page 6

About Cisco MIB Files Send documentation comments to [email protected] Note Capabilities files may have implementation details for more than one software release. You need to 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 for the latest updates to this MIB. 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. Note Cisco and IETF MIBs are updated frequently. You should download the latest MIBs from Cisco.com whenever you upgrade Cisco Nexus 5000 Series switches. This section includes the following topics: • Cisco MIB File Directories, page 6 • MIB Loading Order, page 6 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 OL-16784-01