NMIS9 - How to Configure High Volume SNMPTRAPS

Introduction

Configure SNMPTRAPS to scale up to 300 traps per second. The purpose of this article is to show how to configure the SNMPTRAPD to pull data from the devices to rsyslog. Then, the rsyslog collects the logs into a file to be processed by opEvents. Eventually, the opEvents will apply the filters, parsers, and actions to better use the system management, analysis, and troubleshooting based on the events.

Testing SNMPTRAPS:

snmptranslate -m ALL -M /usr/local/nmis9/mibs/traps 1.3.6.1.4.1.9.9.43.1.1.6.1.5.34

***************************************************************************************************

RESULT: CISCO-CONFIG-MAN-MIB::ccmHistoryEventConfigDestination.34

***************************************************************************************************

sudo snmptrap -v 2c -c public 127.0.0.1 80000 1.3.6.1.4.1.4818 1.3.6.1.4.1.4818.1 s Event_Gladston

Step-by-Step How to Configure the SNMPTRAPS to Forward Traps to Sylog

OBSERVATION: The "Ls" option will configure snmptrapd to send logs to syslog. So, "Ls2" specifically configures snmptrapd to send logs from the local2 facility. The facility is a value that indicates which process on the device generated the message.

STEP 1

RHEL/CENTOS Linux

cd /etc/sysconfig/

vim snmptrapd

OPTIONS="-n --OQ Ls2 -p /var/run/snmptrapd.pid -m ALL -M /usr/local/nmis9/mibs/traps"

Debian/Ubuntu Linux

cd /etc/default/

vim snmptrapd

TRAPDOPTS='-n -OQ -Ls2 -p /var/run/snmptrapd.pid -m ALL -M /usr/local/nmis9/mibs/traps'
[Service]
ExecStart=
ExecStart=/usr/sbin/snmptrapd -n -OQ -Ls2 -p /var/run/snmptrapd.pid -m ALL -M /usr/local/nmis9/mibs/traps

STEP 2

We need to configure the traps to go to a specific log file for opEvents to process them. In this case, all messages that come from facility local2 will be collected into /usr/local/nmis9/logs/snmptrap.log file.

cd /etc/rsyslog.d

touch nmis.conf

vim nmis.conf

local2.* /usr/local/nmis9/logs/snmptrap.log

cd /etc

vim rsyslog.conf

*.info;mail.none;authpriv.none;cron.none;local2.none /var/log/messages

STEP 3

cd /usr/local/omk/conf/

vim opCommon.json

STEP 4