Q-Logic MKII-BASE16 user manual Future use

	Managing the Switch Using SNMP
	object identifier, or NULL. NULLs act as place holders reserved for
	future use.
Access	This property indicates the level of access to this particular object.
	Legal values are: read-only, read-write, write-only, and not accessible.
Status	This property defines the implementation requirement for this object:
	mandatory (the managed node must implement this object); optional
	(the managed node may implement this object); or obsolete (the
	managed node need no longer implement this object).

The presence of objects, their names, and additional property values are part of each MIB specification. Currently, there are three types of MIB specifications:

Standard MIBs

The standard MIB contains a set of objects that are well defined, known, and accepted by the Internet standards group. There is a generic MIB defined for managing network nodes. And, there are two versions of this standard MIB called MIB-I and MIB-II. These MIBs contain standard managed objects that are grouped into different functional categories.

Vendors may choose to implement MIB-I or MIB-II for their agents as well as their network management software. That means if you use a MIB-I network management station to query a MIB-II node, you will not get the full range of possible data. Conversely, if you use a MIB-II network management station to query a MIB-I node, many of the data displays on the console will read blank or zero because of the unavailability of the extra objects.

Experimental MIBs

The experimental MIB contain MIBs that are not in the standard MIBs and are not part of the private or enterprise MIBs. These MIBs may contain specific information about other elements of the network and node management. When an experimental MIB is proven effective and refined, it can be considered a standard MIB. Some experimental MIBs include: T1 Carrier Objects, Ethernet-like Objects, Token Ring-like Objects, and FDDI Objects.

The Fibre Channel Fabric MIB, supported by the GigVision Proxy Agents is an Experimental MIB (Refer to Appendix D in this manual). Also, the Fibre Channel Node MIB, supported by the GigVision Sub-agents, is an Experimental MIB (Refer to Appendix C in this manual)

Enterprise MIBs

Enterprise MIBs are designed by individual companies for their own networking nodes. For network management software that is not from the enterprise MIB vendor to read these MIBs, the manager must know the MIB object names to access them. Often the enterprise MIBs from a vendor are product-line or model

GigWorks MkII-16 Switch Model MKII-BASE16		Switch Management 3-51
Installer's/User's Manual	59003-01 Rev. A