dumps a bunch of snmp information from a list of devices and if indexes - stick in cron job to have easy network monitoring!

gistfile1.txt

#!/bin/bash

# simple script to collect some snmp information from a list of switches and interfaces and dump the result into $DIR
# currently configured to grab the in and out octet counters

# provide a hash of the network device and the if indexes that you wish to monitor, 
# eg ["rtr-farm02"]="380 53 58" will monitor the device rtr-farm02 on if index 380, 53 and 58

declare -A INTERFACES
INTERFACES=( ["swh-farm02a"]="12" ["rtr-farm02"]="380 53 58" ["rtr-farmcore1"]="117" ["rtr-core1"]="9" ["rtr-border2"]="20 3 7" )
DIR='/scratch/atl-prod10/'
COMMUNITY=`cat /opt/etc/snmp.community.read`

OIDS=( ifHCInOctets ifHCOutOctets )
CMD="/usr/bin/snmpget -v2c -c $COMMUNITY -On {{ DEVICE }} {{ OID }}.{{ IF_INDEX }}"

for d in "${!INTERFACES[@]}"; do
    # echo $d
    for i in ${INTERFACES[$d]}; do
        declare -A DATA
        DATE=$(/bin/date +"%Y-%m-%d %T %z")
        for o in "${OIDS[@]}"; do
            THIS_CMD=`echo \"$CMD\" | sed -e s/'{{ DEVICE }}'/$d/g -e s/'{{ OID }}'/$o/g -e s/'{{ IF_INDEX }}'/$i/g  | sed s/\"//g`
            DATA[$o]=$($THIS_CMD | awk '{print $4}')
        done
        echo -e "$DATE\t$d\t$i\t${DATA['ifHCInOctets']}\t${DATA['ifHCOutOctets']}" >> $DIR/$(/bin/date +"%Y-%m-%d").txt
    done
done