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MAC Address Flapping Between Port-Channels

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Category:
ontap-9
Specialty:
nas
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Applies to

  • ONTAP 9
  • ifgrp

Issue

  • Switch SWITCH-001 is reporting that the same host MAC address (d2:39:ea:aa:bb:cc) on VLAN 101 is rapidly flapping between two different port-channels: Port-Channel01 and Port-Channel02.
  • This behavior occurs within milliseconds and is repeatedly logged on the switch side.
  • The ARP table shows multiple entries for the IP Address of this ifgrp.

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