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Dell EMC Exam DEA-1TT5 Topic 4 Question 30 Discussion

Actual exam question for Dell EMC's DEA-1TT5 exam
Question #: 30
Topic #: 4
[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 Nada at Apr 22, 2024, 08:20 AM

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Mammie
5 months ago
Ethernet frame segmentation could also be a potential cause of the data replication performance issue.
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Torie
5 months ago
I don't think so, I believe it's more likely related to IP packet segmentation.
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Rodolfo
5 months ago
But could it also be because the FCIP gateway FC ports are set to TE_Port mode?
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Jesusa
6 months ago
I agree, the issue is probably with how the packets are being segmented.
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Essie
6 months ago
I think the likely cause is IP packet segmentation.
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Helaine
7 months ago
Vernell: We should look into both options to find the root cause.
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Felicitas
7 months ago
Soledad: That could also be a possibility.
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Soledad
7 months ago
Gussie: Maybe it's because the FCIP gateway FC ports are set to TE_Port mode instead.
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Vernell
7 months ago
Could it be because the FCIP gateway FC ports are set to EX_Port mode?
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Gussie
7 months ago
No, I believe it might be Ethernet frame segmentation.
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Verona
7 months ago
I think the likely cause is IP packet segmentation.
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