Network Management

How Solarwinds compute the Memory statistics of Cisco device

This article will explain how solarwinds get free, used and total memory of Cisco devices

First published date

5/6/2021 7:24 AM

Last published date

12/23/2025 12:28 AM

Overview

Solarwinds is using N.Memory.SNMP.CiscoGen4 to poll memory statistics of Cisco devices that support CISCO-PROCESS MIB (Nexus and MDS devices running NX-OS) 

Product section

Network Performance Monitor

Resolution

Memory poller for devices which support CISCO-PROCESS MIB (Nexus and MDS devices running NX-OS) 
Poller utilizes GetSubtree request to gather used memory using OID:
CpmCpuMemoryUsed = 1.3.6.1.4.1.9.9.109.1.1.1.1.12

Poller utilizes GetSubtree request to gather free memory using OID:
CpmCpuMemoryFree = 1.3.6.1.4.1.9.9.109.1.1.1.1.13

Used memory is computed as SUM of all CpmCpuMemoryUsed returned values.
Free memory is computed as SUM of all CpmCpuMemoryFree returned values.
Total memory is computed as SUM of used and free memory.