HP T9576G06, Руководство по управлению

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SNMP Configuration and Management Manual — 424777-006
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10
NonStop NET/MASTER Trap
Subagent
The NonStop NET/MASTER Trap Subagent translates Event Management Service
(EMS) events routed to NonStop NET/MASTER MS into SNMP traps whose objects
are defined in the EMS Trap MIB. It also gives you the ability to define your own trap
objects, for use with an enterprise-specific trap MIB.
This section describes the NonStop NET/MASTER Trap Subagent and its MIB.
Architectural Overview
EMS is a set of processes that collect event messages and then distribute them to
various destinations, including NonStop NET/MASTER. Event messages, generated
by most HP subsystems and by many customer applications that run on NonStop
systems, describe significant situations, such as loss of a function or need for operator
action. Many of these events are candidates for traps for SNMP managers.
Figure 10-1 illustrates the relationship between EMS and NonStop NET/MASTER:
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Event messages are sent by subsystems and applications to one or more
collectors . A collector known as $0 is configured at system generation and this
collector is the primary collector. Other (secondary) collectors can be started after
system load.
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Each collector writes the events it receives to a log file .
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Distributors read events from log files and route them to specific destinations. A
distributor known as a consumer distributor is used to forward messages to the
NonStop NET/MASTER environment.
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Distributors can be configured to use a filter to select events to route.
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Additional message filtering, and optional message modification, can be done
within the NonStop NET/MASTER environment. Procedures known as
EMSPROCs or RMS message handlers are used to conduct automated
procedures and distribute and present messages. The LOGPROC process
manages messages logged to a file, and the MSGPROC process manages those
meant for viewing at an Operator Control Services ( OCS ) window. NCL (Network
Control Language) procedures can be used to customize the presentation of
messages.