Arista ACE-A1.2 Exam - Topic 4 Question 122 Discussion

Actual exam question for Arista's ACE-A1.2 exam

Question #: 122
Topic #: 4

What does LANZ do?

ALANZ reports on microbursting events at extremely small intervals of time.

BLANZ alters the flow of frames based on an interfaces high and low queue-thresholds.

CLANZ is a form of QoS that allows for microsecond-levels of precision on interfaces that support it.

DLANZ is the means whereby late packets can be analyzed.
Data center switches sometimes suffer from a problem known as microbursting, wherein the buffers become overrun and drop packets. The problem is that these microbursts happen often at microsecond intervals, so the switches never report them. These prob lems can be horrific to diagnose, and even worse to try and explain to executives. That is, unless you have an Arista switch with latency analyzer (LANZ)

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Suggested Answer: A

by Reuben at Apr 04, 2026, 06:58 PM

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France

10 days ago

I vaguely recall that LANZ helps with diagnosing packet drops, but I can't remember if it alters frame flow or just analyzes late packets.

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Dorcas

15 days ago

I practiced a question similar to this, and I feel like option C sounds right since it mentions microsecond-level precision, which is crucial for managing microbursts.

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Alpha

21 days ago

I think LANZ is related to QoS and helps with precision on interfaces, but I might be mixing it up with something else we covered.

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Tiffiny

26 days ago

I remember studying LANZ, but I'm not entirely sure if it specifically deals with microbursting or if it's more about analyzing late packets.

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