2V0-41.24 Question 62
Single answerA network administrator is troubleshooting a VMware NSX deployment where applications are using Geneve-based overlays for communication. The administrator notices high packet overhead and wants to understand Geneve encapsulation. Which statement accurately describes the Geneve encapsulation protocol in this scenario?
- A
Geneve is designed to add minimal overhead by using fixed-length headers for all encapsulated packets.
- B
Geneve supports extensibility by allowing variable-length options to accommodate custom metadata.
- C
Geneve encapsulation is optimized for hardware offloading by using a fixed and rigid header structure.
- D
Geneve can only encapsulate Layer 3 traffic, making it unsuitable for Layer 2 workloads in NSX.
Show answer and explanation
Correct answer: B
Explanation
Geneve is an overlay tunneling protocol commonly used in VMware NSX to encapsulate tenant traffic. Unlike older protocols like VXLAN, Geneve is designed with extensibility in mind, allowing variable-length options to carry custom metadata. This flexibility supports modern virtualization and cloud-native use cases. Understanding Geneve's features, such as its ability to carry both Layer 2 and Layer 3 traffic, is critical for network administrators working with NSX.
- A. Incorrect.
This is incorrect because Geneve does not use fixed-length headers. It is designed with flexibility in mind, including support for variable-length options.
- B. Correct.
This is correct. Geneve's extensibility through variable-length options allows it to carry additional metadata, making it suitable for modern network virtualization use cases.
- C. Incorrect.
This is incorrect because Geneve uses a flexible and extensible header structure, which is not rigid and does not solely rely on fixed-length headers.
- D. Incorrect.
This is incorrect because Geneve can encapsulate both Layer 2 and Layer 3 traffic, making it versatile for NSX environments.