Snmpv3 - McDATA 316095-B21 - StorageWorks Edge Switch 2/24 Manual

Introduction to SNMP
1

SNMPv3

E/OS SNMP Support Manual
1-4
retrieved and/or modified by the manager, and it is the agent's job to
return the requested object's value.
Within the agent is at least one, maybe several, collections of
definitions called Management Information Bases (MIBs). MIB
provides each OID with a readable label and other parameters. The
MIB acts as a dictionary that is used to assemble or interpret the
SNMP messages.
When an agent supports a standard MIB, it agrees to provide and
make available the variables listed in the MIB.
A MIB is an hierarchical tree of groups and variables. Operators at a
network management station enter a command with supported
groups and variables from the MIB.
Read status information
with GetRequest command
Set a variable to a value
with SetRequest command
Agent
(Use MIB to
identify variable)
Managed
Device
Retrieving or Setting Values Using MIBs
Figure 1-2
The E/OS provides additional level of security in the existing SNMP
framework by supporting the SNMPv3, which supplements the
SNMPv2c framework by providing security for messages and explicit
access control. The E/OS also supports SNMP versions 1 and 2,
NMS
or
Variable a
Variable b
Variable c
Variable d
Variable e
Variable f
Variable g
-
-
-
Actual
MIB
Variable (object)
(x)y
(x)y
(x)y
(x)y
(x)y