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Cisco Bug: CSCup80823 - SVI not responding to ARP request after reload

Last Modified

Mar 06, 2018

Products (7)

  • Cisco Nexus 3000 Series Switches
  • Cisco Nexus 3064 Switch
  • Cisco Nexus 3016 Switch
  • Cisco Nexus 3064-T Switch
  • Cisco Nexus 3048 Switch
  • Cisco Nexus 3132Q Switch
  • Cisco Nexus 3172 Switch

Known Affected Releases

6.0(2)U3(1)

Description (partial)

Symptom:
Incomplete ARPs entries can occur randomly after a Nexus 3000 switch is reloaded.

To verify this condition check if the following counter is incrementing -

sh ip arp statistics vlan 2000 interface-all 
 ARP packet statistics for interface: Vlan2000
...
 Received:
 Total 24576, Requests 0, Replies 0, Requests on L2 0, Replies on L2 0
 Proxy arp 0, Local-Proxy arp 0, Tunneled 0, Fastpath 0, Snooped 0, Dropped 24576
 Received packet drops details:
    Appeared on a wrong interface       : 24576 <<<<<<<<<<<<<<<<<<<<<<<<< This is incrementing

You may also see syslogs message like

%ARP-3-REQ_NON_AM:  arp [3393]  Sending ARP request for X.X.X.X on invalid interface VlanXXX request from pid: XXXX

Conditions:
After reloading the switch.
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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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