SNMP OID about memory 1.3.6.1.4.1.2021.4.11 returns 0 (zero) for all integer counters after upgrade from R6x to R7x

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Technical Level

Solution ID	sk42811
Technical Level
Product	Security Gateway, Security Management
Version	R70.1, R75.30, R71, R71.10, R71.20, R70, R71.40, R71.45, R75, R75.10, R75.20
OS	SecurePlatform 2.6
Platform / Model	All
Date Created	22-Sep-2009
Last Modified	18-Feb-2017

Symptoms

'snmpwalk' command returns 0 (zero) for all integer counters in SNMP OID 1.3.6.1.4.1.2021.4 (.iso.org.dod.internet.private.enterprises.ucdavis.memory) after upgrade from R6x to R7x.

Example:
[Expert@HostName]# snmpwalk -v 2c -c public localhost 1.3.6.1.4.1.2021.4.11 UCD-SNMP-MIB::memTotalFree.0 = INTEGER: 0

Cause

NET-SNMP is reading /proc/meminfo assuming it has Linux kernel 2.4 format, however the output file format was changed in Linux kernel 2.6

This issue occurs only in R70, R70.1, R71, R71.10, R71.20, R71.30, R71.40, R71.45, R75, R75.10, R75.20 versions, which install NET-SNMP v5.0.9

Solution

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