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Cisco Bug: CSCul85457 - ARP Requests/Replies to/from Nexus4K fails over a SVI interface

Last Modified

Jan 20, 2017

Products (3)

  • Cisco Nexus 4000 Series Switches
  • Cisco Nexus 4001I Switch Module for IBM BladeCenter
  • Cisco NX-OS Software

Known Affected Releases


Description (partial)

ARP Requests/Replies to and from Nexus 4000 fail over a switch virtual interface (SVI interface). The ARP table is not populated resulting in loss of IP host connectivity.

Unknown unicast flooding with jumbo frames results in CPU buffer overrun in Electra. The CPU ring that processes this traffic is frozen irrecoverably thereby failing ICMP/ARP messages.
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