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Cisco Bug: CSCur11844 - N7K link flaps when connected to 10G DWDM Circuit

Last Modified

Feb 11, 2018

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


Description (partial)

Issue seen with 6.2.8(a). When bringing a up 10G DWDM link between N7Ks connected over a Siemens WAN the links flap repeatedly until they go link flap error-disabled.

Conditions: Issue reported with Image : 6.2.8(a) 
Product : Nexus 7k
Modules : Reported on F2 series

N7K using a 10Gig LR connected to a Siemens DWDM.
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