Avaya Configuring SNMP, BOOTP, DHCP, and RARP Services Manuel d'utilisateur télécharger pdf (Page 35)

SNMP, BootP, DHCP, and RARP Concepts

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An event log message provides a brief description of an event, along with the

event code associated with that event.

A trap is an event that the router transmits to the network management station.

SNMP allows you to configure which event log messages the agent sends to the

network management station as traps. You select these traps based on slot,

protocol entity, and severity level. You can also specify up to 50 exceptions, which

are traps that the agent always sends, or never sends, regardless of slot and

regardless of how you configure the trap parameters. For information about how

to specify which traps the agent sends, see “Configuring Traps on the Router

” on

page 3-19.

Protocol Entities

Events are always associated with a particular protocol entity. An entity is the

software that generates a message. Entities include Bay Networks software

dedicated to the operation of a software service, such as Trivial File Transfer

Protocol (TFTP) and IP, and the GAME

operating system.

Both events and entities are assigned entity codes. Together, this pair uniquely

identifies a Bay Networks router platform event. For a complete list of entities

(both their abbreviations and full names) and associated entity codes, see Event

Messages for Routers.

Severity Levels

Event and trap messages are always associated with a severity level. Table 2-1

describes the severity levels and gives the code that corresponds to each one. This

guide does not cover Debug messages, because they are for Bay Networks internal

use only.

Table 2-1. Severity Levels

Severity Description Code

Information Indicates routine events that usually require no action. 2

Warning Indicates that a service acted in an unexpected manner. 4

Fault Indicates a major service disruption, usually caused by a

configuration, network, or hardware problem. The entities

involved keep restarting until the problem is resolved.

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Avaya Configuring SNMP, BOOTP, DHCP, and RARP Services Manuel d'utilisateur Page 35