Guest

Preview Tool

Cisco Bug: CSCvi92251 - 3850 / 16.3.6 / SV stack splits after drops on CPU queue (nif_mgr)

Last Modified

Aug 16, 2018

Products (120)

  • Cisco Catalyst 3850 Series Switches
  • Cisco Catalyst 3650-24PDM-E Switch
  • Cisco Catalyst 3850-12S-E Switch
  • Cisco Catalyst 3850-32XS-E Switch
  • Cisco Catalyst 3650-12X48UR-L Switch
  • Cisco Catalyst 3650-48FQM-L Switch
  • Cisco Catalyst 3650-48FQ-E Switch
  • Cisco Catalyst 3650-12X48UQ-L Switch
  • Cisco Catalyst 3850-48P-E Switch
  • Cisco Catalyst 3650-8X24PD-L Switch
View all products in Bug Search Tool Login Required

Known Affected Releases

Denali-16.3.6

Description (partial)

Symptom:
The Stackwise Virtual stack goes into dual active scenario from time to time without apparent reason. If Dual Active Detection is configured then one of the switches goes to Recovery mode.

Conditions:
- Drops (Drop-TH2) on CPU queue number 29 (nif_mgr). CPU drops can be checked with following command:
show platform hardware fed switch active qos queue stats internal port_type egress-cpu asic 0
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.