Optimizing Network Performance of Your AWS VPN Server

Considerations for Optimizing Network Performance

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Question

Your company is planning to host its own VPN server in AWS.

This will be hosted on an EC2 instance using a software from the AWS Marketplace.

You are tasked with ensuring optimal network performance of the underlying VPN server.

Which of the following aspects would you consider? Choose 2 answers from the options given below.

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

Answer - B and C.

Ensure that the Instance is using Enhanced Networking for better network throughput.

Also, conduct the necessary initial tests on the system to understand the system's overall performance and see if there are any limitations.

Option A is incorrect since this has to do with storage and not network performance.

Option D is incorrect since this has to do more with scalability.

For more information on tests that can be done on an underlying instance for network performance, please visit the below URL:

https://aws.amazon.com/premiumsupport/knowledge-center/low-bandwidth-vpn/

As the task is to ensure optimal network performance of the underlying VPN server in AWS, the following two aspects should be considered:

  1. Ensure that the instance is using Enhanced Networking: Enhanced Networking is a feature that enables higher network throughput and lower network latency on supported instance types. It achieves this by providing higher packet-per-second (PPS) performance, lower inter-instance latencies, and lower network jitter. It is recommended to use enhanced networking on EC2 instances for applications that require high network performance, such as VPN servers. This feature can be enabled during instance launch or by modifying the instance settings.

  2. Understand the packet limitations in the infrastructure: AWS infrastructure imposes limits on the number of packets per second that can be sent and received by an instance. Understanding these limitations is crucial for optimizing network performance. If the packet-per-second limit is reached, it can lead to increased latency, packet loss, and reduced network performance. Therefore, it is important to design and configure the network infrastructure, including the VPN server, in a way that avoids exceeding these packet limits.

Option A: Ensure that the instance is using EBS optimized volumes. EBS optimized volumes are designed to deliver dedicated throughput between Amazon EC2 instances and Amazon EBS. However, this feature may not have a significant impact on the performance of the VPN server. Therefore, it may not be a high priority for optimizing network performance.

Option D: Use a Network load balancer for scaling. A Network Load Balancer (NLB) can distribute traffic across multiple VPN servers and improve availability and scalability. However, this option does not necessarily improve network performance, but rather it enhances the fault tolerance and scalability of the infrastructure.

In summary, for optimizing the network performance of the VPN server in AWS, it is recommended to ensure that the instance is using Enhanced Networking and to understand the packet limitations in the infrastructure.