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Cisco Bug: CSCvi61623 - N7K/N77 F3 module egress buffer lock

Last Modified

Jan 11, 2019

Products (22)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco MDS 9710 Multilayer Director
  • Cisco MDS 9124 Multilayer Fabric Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco MDS 9148S 16G Multilayer Fabric Switch
  • Cisco MDS 9222i Multiservice Modular Switch
  • Cisco MDS 9250i Multiservice Fabric Switch
  • Cisco Nexus 7700 6-Slot Switch
  • Cisco MDS 9509 Multilayer Director
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Known Affected Releases

6.2(20) 7.3(2)D1(2) 8.1(2a) 8.2(1)

Description (partial)

Symptom:
Depending on traffic flow, constant increment of input discards on various interfaces.

All traffic, including control-plane packets (e.g. LACP), do not egress interfaces sharing the same port ASIC.
-This will result in adjacency loss, LACP suspended interfaces, etc.

Conditions:
Nexus 7000 with F3 Modules
-First seen on 6.2(12) with N7K-F348XP-25 module

Related Community Discussions

<key>CSCvi61623</key> - N7K/N77 F3 module egress buffer lock
Hi,   As we seen on this bug ID stated &quot;fixed&quot;, and what we can see there is no fix release version and workaround doesn't seems could fix permanent. Does we have permanent fix for this issue ?   It will be huge impact when issue re-occurred whenever temporary fix isn't take place.
Latest activity: Jul 09, 2018
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