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IP distribution for a LAG (ifgrp) may not be optimally balanced in ONTAP

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Category:
ontap-9
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nas
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Applies to

  • ONTAP 9
  • Interface group (IFGRP)
  • Link Aggregation Group (LAG)

Issue

  • The LAG (Link Aggregation Group/IFGRP) is not evenly transmitting traffic across the participating ports evenly when using IP based distribution.
  • Low throughput after ONTAP upgrade from 9.1 to 9.7.
    • system node run -node <nodename> -command ifstat -a shows unequal load distribution across the participating ports in the TRANSMIT section.

 

 

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