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Cisco Bug: CSCvu47903 - First packet in native multicast flow drops due to RPF failure

Last Modified

Sep 20, 2020

Products (32)

  • Cisco Catalyst 9300 Series Switches
  • Cisco Catalyst 9300-48UXM-A Switch
  • Cisco Catalyst 9300-48P-A Switch
  • Cisco Catalyst C9500-16X-E Switch
  • Cisco Catalyst 9300-48U-A Switch
  • Cisco Catalyst 9400 Supervisor Engine-1XL-Y
  • Cisco Catalyst 9300-48UN-A Switch
  • Cisco Catalyst 9300-48T-A Switch
  • Cisco Catalyst C9500-40X-A Switch
  • Cisco Catalyst C9500-12Q-A Switch
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Known Affected Releases

16.12.3

Description (partial)

Symptom:
The first packet in the native multicast flow might drop when going through a 3850/9300 due to RPF failure.

Conditions:
Issue is only seen if (S,G) with R flag was created first.
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Bug Details Include

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