Guest

Preview Tool

Cisco Bug: CSCvs01267 - CSPC is not able to discover WLC in HA setup when scanning IP ranges

Last Modified

May 04, 2020

Products (1)

  • Network Level Service

Known Affected Releases

2.8(1.4)

Description (partial)

Symptom:
With CSPC IP range discovery, active WLC will be discovered as duplicate of standby WLC, while standby WLC remains inactive due to the design. As a result Inventory collection data is not being collected from WLC.
THe reason for this is that when CSPC is sending SNMP packets to standby WLC, it gets valid response with valid data, but the reply is sent from active WLC (In WLC HA design it is active that always responds, no matter if the request was directed to active or standby node).
CSPC does not verify who replied and thinks that standby is available and marks active as duplicate.

Conditions:
The issue has been observer with CSPC IP range discovery with SNMPv3.
It is possible that the problem will also appear with protocol discovery like CDP and SNMPv2 although it has not been verified.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.