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Cisco Bug: CSCur48215 - 9564TX link flaps continuously when connected to spectracom GM

Last Modified

Apr 12, 2017

Products (11)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 3164Q Switch
  • Cisco Nexus 9332PQ Switch
  • Cisco Nexus 9508 Switch
  • Cisco Nexus 93128TX Switch
  • Cisco Nexus 9372TX Switch
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Known Affected Releases

6.1(2)I3(1)

Description (partial)

Symptom:
2014 Oct 30 16:29:00 ppanzl-9504-1 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet1/1 is down (Link failure)
2014 Oct 30 16:29:03 ppanzl-9504-1 %ETHPORT-5-SPEED: Interface Ethernet1/1, operational speed changed to 1 Gbps
2014 Oct 30 16:29:03 ppanzl-9504-1 %ETHPORT-5-IF_DUPLEX: Interface Ethernet1/1, operational duplex mode changed to Full
2014 Oct 30 16:29:03 ppanzl-9504-1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/1, operational Receive Flow Control state changed to off
2014 Oct 30 16:29:03 ppanzl-9504-1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/1, operational Transmit Flow Control state changed to off
2014 Oct 30 16:29:03 ppanzl-9504-1 %ETHPORT-5-IF_UP: Interface Ethernet1/1 is up in mode access

Conditions:
when connecting a n9k-9564PX to a spectracom GM a 1Gb you may see repeated link flaps.
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Bug Details Include

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