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D-View 5.1 User's Guide
by at most one instantiation of each of a particular set of MIB objects. A set
of management functions is associated with each logical entity. Examples of
logical entities include routers, bridges, print-servers, etc.
- Physical Entity
A "physical entity" or "physical component" represents an identifiable
physical resource within a managed system. Zero or more logical entities
may utilize a physical resource at any given time. It is an implementation-
specific manner as to which physical components are represented by an
agent
in
the
communications ports, back planes, sensors, daughter-cards, power
supplies, the overall chassis) that can be managed via Functions associated
with one or more logical entities are included in the MIB.
- Containment Tree
Each physical component may be modeled as 'contained' within another
physical component. A "containment-tree" is the conceptual sequence of
entPhysicalIndex values that uniquely specifies the exact physical location of
a physical component within the managed system. It is generated by
'following and recording' each 'entPhysicalContainedIn' instance 'up the tree
towards the root', until a value of zero indicating no further containment is
found.
EntPhysicalTable.
Typically,
Table 3
physical
resources
139
(e.g.,
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