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Cisco Bug: CSCus89890 - Link state will not change after ISSU to 7.0 from 6.0(2)

Last Modified

Apr 20, 2017

Products (11)

  • Cisco Nexus 6000 Series Switches
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 5624Q Switch
  • Cisco Nexus 6004 Switch
  • Cisco Nexus 5672UP Switch
  • Cisco Nexus 6001 Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 56128P Switch
  • Cisco Nexus 5696Q Switch
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Known Affected Releases

6.0(2)N2(5) 7.0(5)N1(1a) 7.1(0)N1(1)

Description (partial)

After a non-disruptive ISSU upgrade from 6.0 to any 7.0(x)N1(1) release, the N6K will not recognize link state changes.  If you remove/add an SFP, it will show as the previous state regardless. 

Eth1/2 show link DOWN before ISSU.  Add SFP/SFP+Active connection and 'no shut' still show as down

Seen in a Nexus 6000 switch which went through non-disruptive ISSU upgrade from 6.0 to any 7.0(x)N1(1) release or 7.1(1)N1(1) release.
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