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Cisco Bug: CSCun38597 - Linkup delay between FEX-HIF and N5K

Last Modified

Feb 22, 2018

Products (7)

  • Cisco Nexus 5000 Series Switches
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 5020 Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 5596T Switch
  • Cisco Nexus 5010 Switch

Known Affected Releases

5.2(1)N1(6)

Description (partial)

Symptom:
When user performs "no shut" on more than 48 interfaces, the link (laser) will be turned on immediately but the switch will start switching the packets only after 30 seconds. When the ports are connected to servers that don't run any kind of protocol to check if the remote side is ready to receive frames, this can lead to traffic loss upto 30 seconds.

Conditions:
"no shut " done on more than 48 interfaces such as "int e101/1/1-48,e102/1/1-48" "no shut"
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Bug Details Include

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