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Cisco Bug: CSCun20061 - FEX : Incorrect ucdidvif table programming on F2 upon fpc flap

Last Modified

Jun 05, 2019

Products (5)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch

Known Affected Releases

6.1(4a) 6.2(8)FM(0.20)

Description (partial) 

Symptom:
Unicast traffic destined to egress a FEX Host Interface (HIF) may be dropped due to the incorrect programming of the Unicast Destination Index to Destination Virtual InterFace (ucdidvif) table on the egress module.

Conditions:
- Nexus 7000 running NX-OS version less than 6.2(8)
- Nexus 7000 F2 or F2E series modules
- Nexus 2000 Fabric Extenders (FEX) connected to the F2/F2E modules
- LTL Indexes not allocated contiguously to the FEX HIFs by PIXM
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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