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Cisco Bug: CSCus24030 - F3/100G: CRC errors when pkts sent from dot1q/FP to untagged/access intf

Last Modified

Feb 08, 2017

Products (8)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7700 6-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7700 18-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch
  • Cisco Nexus 7700 10-Slot Switch

Known Affected Releases

6.2(10) 6.2(8b)

Description (partial)

CRC errors and packet drop on traffic received from 100G F3 interface.

The issue happens when a packet is received on a trunk enabled interface (trunk port or Fabricpath port or layer 3 sub-interface) and has to exit on an interface with no tag.  Even if it arrives on the native vlan or main interface on the input interface without a tag it will still cause CRCs on the next hop device.
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