Understanding Extreme Asymmetry in Wi-Fi Speed: A Case Study of a 5GHz Mesh Network (eero)
In today's interconnected world, wireless networks have become an essential part of our daily lives. With the increasing number of devices in our homes and workplaces, it's crucial to have a reliable and fast wireless network. One of the solutions to achieve this is by using a 5GHz mesh network, such as eero. However, even with a high-performance mesh network, users may encounter issues such as extreme asymmetry in Wi-Fi speed between two systems.
Two Systems: B and C
In this case study, we will focus on two systems, B and C, connected to a 5GHz mesh network (eero). The network consists of multiple nodes, providing Wi-Fi coverage throughout a large area. Both systems are located in the same room, ensuring minimal interference from other devices or physical obstacles.
Performance Test: Diperf3
To measure the raw data transfer speed between the two systems, we used the diperf3 tool. Diperf3 is a popular open-source network testing tool that provides accurate and reliable results. The test was conducted multiple times, and the results showed extreme asymmetry in Wi-Fi speed between the two systems.
Raw Data Transfer Speed Results
The raw data transfer speed results were as follows:
- System B to System C: 940 Mbps
- System C to System B: 30 Mbps
As shown in the results, the data transfer speed from System B to System C was significantly higher than the speed from System C to System B. This extreme asymmetry in Wi-Fi speed is not expected in a mesh network, where all nodes are designed to provide similar performance.
Possible Causes
There could be several reasons for this extreme asymmetry in Wi-Fi speed between the two systems:
- Hardware limitations: The Wi-Fi adapter in System C may not support the same data transfer speed as the adapter in System B.
- Driver issues: The Wi-Fi driver in System C may not be optimized for the 5GHz mesh network, resulting in lower performance.
- Interference: Although both systems are located in the same room, there could be other devices or physical obstacles causing interference.
- Network congestion: The network may be experiencing high traffic, causing slower data transfer speeds.
Solutions
To address the extreme asymmetry in Wi-Fi speed between the two systems, the following solutions can be considered:
- Upgrade the Wi-Fi adapter in System C to a higher-performance model.
- Update the Wi-Fi driver in System C to the latest version.
- Minimize interference by moving other devices or physical obstacles away from the Wi-Fi nodes.
- Reduce network congestion by limiting the number of devices connected to the network or upgrading to a higher-performance network.
Although 5GHz mesh networks, such as eero, are designed to provide reliable and fast Wi-Fi coverage, users may still encounter issues such as extreme asymmetry in Wi-Fi speed between two systems. By understanding the possible causes and implementing the appropriate solutions, users can ensure optimal performance and a seamless wireless experience.
References
- Diperf3: https://github.com/esnet/iperf
- eero: https://eero.com/
- 5GHz Mesh Networks: https://www.smallnetbuilder.com/basics/wireless-basics/33155-5ghz-mesh-networks-how-well-do-they-work
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