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Cisco Bug: CSCut38894 - VxLAN: vPC downstream traffic not sent out to gateway and dropped

Last Modified

Feb 22, 2018

Products (7)

  • Cisco Nexus 3000 Series Switches
  • Cisco Nexus 3064 Switch
  • Cisco Nexus 3016 Switch
  • Cisco Nexus 3064-T Switch
  • Cisco Nexus 3048 Switch
  • Cisco Nexus 3132Q Switch
  • Cisco Nexus 3172 Switch

Known Affected Releases


Description (partial)

VxLAN traffic get dropped on Nexus 3172 running as vPC peer. traffic was received from vPC downstream interface but is not sent out to the VxLAN SPINE node. 
MAC and ARP entries are existing when ping fails. ping may work for some other hosts in same VLAN, which proves VxLAN function is working for some IP pairs.

This happens with basic setup. No specific triggers.
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Bug Details Include

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  • Status
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