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Question 101 - 2V0-41.23 discussion

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A customer is preparing to deploy a VMware Kubernetes solution in an NSX environment.

What is the minimum MTU size for the UPLINK profile?

A.
1500
Answers
A.
1500
B.
1550
Answers
B.
1550
C.
1700
Answers
C.
1700
D.
1650
Answers
D.
1650
Suggested answer: C

Explanation:

The minimum MTU size for the UPLINK profile is 1700 bytes. This is because the UPLINK profile is used to configure the physical NICs that connect to the NSX-T overlay network. The overlay network uses geneve encapsulation, which adds an overhead of 54 bytes to the original packet. Therefore, to support a standard MTU of 1500 bytes for the inner packet, the outer packet must have an MTU of at least 1554 bytes. However, VMware recommends adding an extra buffer of 146 bytes to account for possible additional headers or VLAN tags. Therefore, the minimum MTU size for the UPLINK profile is 1700 bytes (1554 + 146).References: : VMware NSX-T Data Center Installation Guide, page 23. : VMware NSX-T Data Center Administration Guide, page 102. : VMware NSX-T Data Center Installation Guide, page 24.

https://nsx.techzone.vmware.com/resource/nsx-reference-design-guide#a-31-the-nsx-virtual-switch

asked 16/09/2024
Lizbeth Perea Joseph
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