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Question 209 - NCS-Core discussion

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A customer design calls for link aggregation. Despite the consultant verifying all hosts are correctly configured for fallback per Nutanix best practices, initial testing reveals the aggregate bond fails to pass traffic and shows a status of configured.

What is the most likely cause for the bond disabling and reporting a 'configured' status?

A.
The uplinks in the bond need to be turned on.
Answers
A.
The uplinks in the bond need to be turned on.
B.
The ports need to be flushed.
Answers
B.
The ports need to be flushed.
C.
Failed negotiation due to misconfiguration on ToR switches.
Answers
C.
Failed negotiation due to misconfiguration on ToR switches.
D.
The bond needs to be reconfigured for balance s_b mode.
Answers
D.
The bond needs to be reconfigured for balance s_b mode.
Suggested answer: C

Explanation:

If link aggregation is failing to pass traffic and is only showing a status of 'configured,' the most likely cause is a failed negotiation due to a misconfiguration on the Top-of-Rack (ToR) switches. This typically occurs when the aggregation protocols (like LACP) or the settings on the ToR switches do not match the configuration on the hosts. Ensuring that both ends of the aggregated links are configured identically and properly for the expected protocols is critical for successful link aggregation.

Reference: Nutanix Network Configuration Guide, Best Practices for Network Aggregation.

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asked 23/09/2024
matthew kim
40 questions
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