Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 1762)

SNMP Introduction
Software Reference for x310 Series Switches
67.4 AlliedWare Plus TM Operating System - Version 5.4.4C C613-50046-01 REV A
Structure of Management Information
The structure of management information (SMI) defines the schema for a collection of
managed objects residing in a virtual store called the management information base
(MIB). The information in a MIB includes administrative and operational configuration
information, as well as counters of system events and activities.
The MIB is organized into a tree-like hierarchy in which nodes are each assigned an
identifier consisting of a non-negative integer and an optional brief textual description.
Each managed object is represented by a leaf node and is defined by its name, syntax,
access mode, status and description. It can also be specifically identified by its unique
position within the tree. This position is expressed as a series of dot-delimited sub-
identifiers that start at the root node and end in the sub-identifier at the particular object’s
leaf node. For example, in
Figure 67-2 the object named interfaces would be uniquely
identified by the string of individual sub-identifiers, 1.3.6.1.2.1.2.
Figure 67-2: Top levels of the Internet-standard Management Information Base (MIB)
Objects defined in the Internet-standard MIB (MIB-II) reside in the mib(1) sub-tree.
system (1)
interfaces (2)
at (3)
ip (4)
icmp (5)
tcp (6)
udp (7)
egp (8)
cmot (9)
transmission (10)
snmp (11)
mib-2 (1)
internet (1)
enterprises (1)
directory (1) private (4) experimental (3) mgmt (2)
mib (1) dod (6)
member-body (2) standard (0) registration-authority (1) identified-organisation (3)
iso (1) ccitt (0)
root
joint-iso-ccitt (2)
SNMP2
dot1dBridge (17)
host (25)
...
...