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Cisco Bug: CSCvu64219 - Remote IP endpoint learning is not happening in non-border leaf when NIR with flow-telemetry enabled

Last Modified

Oct 03, 2020

Products (25)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 93108TC-FX Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 93120TX Switch
  • Cisco Nexus 93240YC-FX2 Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 9332C Switch
  • Cisco Nexus 9372TX-E Switch
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Known Affected Releases

14.2(4.267) 14.2(4i)

Description (partial)

Symptom:
There are 2 issues caused by this bug:
1. Dataplane learning is disabled, meaning learning is only occurs only from ARP and neighbor discovery. This issue occurs on all platforms.
2. Hitbit does not get updated during learn disable, causing endpoints to age prematurely. This issue occurs with N9K-C9336C-FX2, N9K-C93240YC-FX2, N9K-C93240YC-FX2Z, and later switches.

Conditions:
This issue occurs only when the Network Insights for Resources (NIR) app is installed and flow telemetry is enabled.
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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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