Prevent polling ciscoMemoryPoolName OID to tackle known Cisco bug - CSCtx43501

Products

• VMware Smart Assurance

Issue/Introduction

Symptoms:

There is a known Cisco bug (CSCtx43501), that causes high memory utilization on ASA devices when ciscoMemoryPoolName OID is polled. 
This article will explain how to prevent Smarts from polling the OID.

Environment

Smarts 10.1.X / 2.X 

Cause

Cisco Forum URL: Cisco Bug: CSCtx43501

Resolution

To prevent Smarts IP from  polling this OID you will need to edit the DISCOVERY_CISCO.import.

• Please use the sm_edit function:
  

  <base>/bin/sm_edit -s<domain name> ..conf/discovery/DISCOVERY_CISCO.import
  

• Edit the following section 
  

  GA_Driver::Performance-Cisco-Router-Driver {
  ReadsRulesFrom = GA_RuleSet::Performance-Cisco-Router-RS
  {
     fileName = "discovery/ic-cisco-router-health.asl" 
  }
  ReadsInputFrom = SNMP_WalkFE::Performance-Cisco-Router-FE {
  rootOIDs = {
    # cpmCPUTotal5minRev # CPU will be created using cpmCPUTotal5minRev by default
    { 5, ".1.3.6.1.4.1.9.9.109.1.1.1.1.8" },
    # cpmCPUTotal5minOID
    { 10, ".1.3.6.1.4.1.9.9.109.1.1.1.1.5"}, # CPU will be created using cpmCPUTotal5min when there's no data for cpmCPUTotal5minRev
    # avgBusy1
    { 15, ".1.3.6.1.4.1.9.2.1.57" }, # CPU will be created using avgBusy1 when there's no data for cpmCPUTotal5minRev and cpmCPUTotal5min
    # ciscoMemoryPoolName
    { 20, ".1.3.6.1.4.1.9.9.48.1.1.1.2" },
    # freeMem
    { 25, ".1.3.6.1.4.1.9.2.1.8" },
  ...........

• Please comment out the highlighted line:
  • Before:
    

    { 20, ".1.3.6.1.4.1.9.9.48.1.1.1.2" }

  • After:
    

    #{ 20, ".1.3.6.1.4.1.9.9.48.1.1.1.2" }

• This change will require a restart of AMPM domain.

Additional Information

Please not that as this OID is a basic CPU OID smarts will poll this OID in an AM domain as well.  Also please note that this will effect all Cisco Routers that use this OID. If you are concerned with this please contact Cisco to see if there is a resolution to the bug on their side. 

This article is simply a workaround until the bug can be resolved.