AWS Direct Connect: Using Jumbo Frames for Enhanced Network Performance

Should You Use Jumbo Frames for AWS Direct Connect?

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Question

Your company currently has a Direct Connect connection between AWS and its on-premise infrastructure.

There was a suggestion to use jumbo frames to get a larger set of network packets ( more than 1,500 bytes of data per packet ) sent across the connection.

As a network specialist what would you recommend in this regard?

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

Answer - A.

The AWS documentation mentions the following on jumbo frames.

Jumbo frames allow more than 1500 bytes of data by increasing the payload size per packet,

For more information on jumbo frames, one can visit the below URL:

https://aws.amazon.com/about-aws/whats-new/2018/10/aws-direct-connect-now-supports-jumbo-frames-for-amazon-virtual-private-cloud-traffic/

Jumbo frames allow for larger sets of data to be transmitted per packet, reducing the number of packets required to transmit the same amount of data, which can increase network efficiency and reduce latency. However, using jumbo frames requires that all devices in the network path support and are configured to use them.

In this scenario, the company currently has a Direct Connect connection between AWS and its on-premise infrastructure. If the on-premise infrastructure supports jumbo frames and is configured to use them, then enabling jumbo frames on the Direct Connect connection could provide benefits.

Option A suggests agreeing to use jumbo frames without considering whether the on-premise infrastructure supports them, which could lead to issues if jumbo frames are not supported or properly configured.

Option B suggests agreeing to use jumbo frames and also considering using larger instance types on the AWS side, which can increase the network capacity and throughput. This option is a better approach since it considers both sides of the connection and the potential benefits of using jumbo frames.

Option C suggests disagreeing with the suggestion since using jumbo frames could slow down the traffic. This option is not entirely accurate since jumbo frames are designed to improve network performance by reducing the number of packets required to transmit the same amount of data. However, if the on-premise infrastructure or AWS resources do not support jumbo frames, this can lead to slower performance or even network errors.

Option D suggests disagreeing with the suggestion since using jumbo frames is not possible in AWS. This option is incorrect since AWS does support jumbo frames, but the devices in the network path must also support and be configured to use them.

In conclusion, the best option would be to agree to use jumbo frames and also consider using larger instance types on the AWS side, while ensuring that the on-premise infrastructure supports and is properly configured to use jumbo frames.