HP StorageWorks XPath OS 7.4.X MIB Reference Guide (AA-RVHEC-TE, September 2005)

10 Understanding HP SNMP
Figure 4 Fibre Channel SAN
Understanding MIBs
The MIB structure can be represented by a tree hierarchy. The root splits into three main branches:
• International Organization for Standardization (ISO)
• Consultative Committee for International Telegraph and Telephone (CCITT)
• Joint ISO/CCITT.
These branches and their leaves have short text strings and integers to identify them. Text strings describe
object names, while integers allow software to create compact, encoded representations of the names.
Each MIB variable is assigned an object identifier (OID). The OID is the sequence of numeric labels on the
nodes along a path from the root to the object. For example, as shown in Figure 5, the HP SW.MIB OID is
1.3.6.1.4.1.1588, the corresponding name is
iso.org.dod.internet.private.enterprise.bsci. The other branches are part of the standard
MIBs, and the portions relevant to configuring SNMP on an HP StorageWorks switch are referenced in the
remainder of this document.
NOTE: XPath OS supports a subset of the MIB-II and FibreAlliance MIB, not the HP SW MIB.