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Dell EMC Exam DEA-1TT5 Topic 1 Question 28 Discussion

Actual exam question for Dell EMC's DEA-1TT5 exam
Question #: 28
Topic #: 1
[All DEA-1TT5 Questions]

A customer uses FCIP to connect local and remote FC SANs. The remote SAN is continuously replicated to, and used to store

daily backup dat

a. Latency over the IP WAN increases to unacceptable levels during peak replication periods. No other data

transfer services using the WAN experience the same latency problem.

What is the likely cause of the data replication performance issue?

Show Suggested Answer Hide Answer
Suggested Answer: A

When an Ethernet frame is larger than the maximum transmission unit (MTU) of a link, it must be fragmented into smaller pieces, which are sent separately and reassembled at the receiver. This is known as IP packet segmentation. Fragmentation and reassembly of the IP packets can add significant latency and can cause performance issues for FCIP. In this scenario, the issue is specific to data replication, indicating that the issue is with the FCIP configuration or the replication application. The other options, B, C, and D, are unrelated to the issue.


by Selma at Mar 19, 2024, 11:42 PM

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Rosalia
5 months ago
I see where you're coming from, Dierdre. It's crucial to analyze all aspects to find the root cause.
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Dierdre
5 months ago
I believe Ethernet frame segmentation might also be contributing to the replication performance issue.
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Tula
5 months ago
That's a good point, Yoko. It's essential to consider all possibilities.
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Yoko
5 months ago
But what about FCIP gateway FC ports set to EX_Port mode? That could also be a potential cause, right?
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Rosalia
5 months ago
I agree with Tula, IP packet segmentation could be causing the latency issue.
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Tula
5 months ago
I think the likely cause could be IP packet segmentation.
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Aleshia
6 months ago
I agree with Glendora, the FCIP gateway FC ports being set to EX_Port mode could definitely be the cause.
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Glendora
6 months ago
Well, I think the FCIP gateway FC ports being set to EX_Port mode might be causing the latency issues during peak replication periods.
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Anissa
6 months ago
But why do you think that? Can you explain?
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Glendora
6 months ago
I disagree, I believe the issue is caused by FCIP gateway FC ports set to EX_Port mode.
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Anissa
6 months ago
I think the likely cause of the data replication performance issue is IP packet segmentation.
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