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000-221 · Question #21

000-221 Question #21: Real Exam Question with Answer & Explanation

The correct answer is B. entstat. The entstat command in AIX reports detailed Ethernet adapter and EtherChannel statistics, including which adapter is currently active as the primary or backup.

Question

Which command will help determine if the primary Ethernet adapter in an EtherChannel has failed and the backup adapter is being used?

Options

  • Aethstat
  • Bentstat
  • Cifconfig
  • DIsagg

Explanation

The entstat command in AIX reports detailed Ethernet adapter and EtherChannel statistics, including which adapter is currently active as the primary or backup.

Common mistakes.

  • A. ethstat is not a standard AIX command and does not exist for monitoring EtherChannel or adapter failover status.
  • C. ifconfig shows interface address configuration and basic operational state (UP/DOWN) but does not expose EtherChannel-specific aggregation and failover detail.
  • D. lsagg lists configured EtherChannel aggregations and their members but does not provide real-time statistics showing that a primary-to-backup failover has taken place.

Concept tested. AIX EtherChannel failover diagnostics with entstat

Reference. https://www.ibm.com/docs/en/aix/7.3?topic=e-entstat-command

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