Configuring The Snmp Server Event Manager; Event Mib Purpose - Juniper SYSTEM BASICS - CONFIGURATION GUIDE V 11.1.X Configuration Manual

1.
2.
To recover SNMP traps that are lost during system startup, the SNMP agent pings
the configured trap host to identify that there is a communication path between E
Series router and host. On successful ping acknowledgment, the lost traps are
reconstructed for each virtual router. In the case of scenario 1, the reconstructed
traps are sent to the proxy virtual router to be routed to the appropriate hosts. In the
case of scenario 2, the traps are sent directly to the appropriate hosts.
You can configure the ping timeout window with the snmp-server host command.
The following are guidelines for setting the maximum ping window:
snmp-server host

Configuring the SNMP Server Event Manager

The SNMP server event manager works in conjunction with the Event MIB (RFC
2981). The purpose of this application is to allow many management functions (for
example, fault detection, configuration management, accounting management, and
performance management). These functions are traditionally performed by the
network management station. However, by using the SNMP server event manager,
you can distribute some of these functions to E Series routers and automate them.

Event MIB Purpose

The rapid growth of networks has made it impractical to directly manage networks
from a single network management station (NMS). This brought about a need for a
model that both automated and distributed event management. The goal was to
The SNMP agent begins sending SNMP traps to the host before the line module
is initialized.
If the SNMP proxy virtual router is initialized after other virtual routers, traps
generated by the other virtual routers and sent to the proxy router are lost.
If you are losing traps because of scenario 1, base the maximum ping window
time on the estimated time that it takes to establish connectivity in a particular
network. (For some configurations it can take more than 30 minutes to establish
connectivity.)
If you are losing traps because of scenario 2, we recommend that you use the
default value for the maximum ping window time, which is one minute.
Use to set the ping timeout for the host that is receiving SNMP traps.
Use the pingtimeout keyword to set the ping timeout window; the range is 1–90
minutes.
Example
host1(config)#snmp-server host 10.10.4.4 pingtimeout 2
Use the no version to remove the SNMP host.
See snmp-server host.
Chapter 4: Configuring SNMP
Configuring the SNMP Server Event Manager
177