Avaya Configuring SNMP, RMON, BOOTP, DHCP, and RARP Services Manual de usuario Pagina 37

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SNMP, RMON, BOOTP, DHCP, and RARP Concepts
114070 Rev. B 2-5
Internet Protocol (IP)
SNMP uses the User Datagram Protocol (UDP) to transport its messages. You
must enable IP to use UDP and SNMP.
Events and Traps
An event is a change in the operating status of a router. The router stores the event
as a single entry in a memory-resident log.
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. Refer to “Configuring Traps
on the Router” in Chapter 3 for information about how to specify which traps the
agent sends.
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 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 or BNX platform event. Refer to Event Messages
for Routers and BNX Platforms for a complete list of entities (both their
abbreviations and full names) and associated entity codes.
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