Appendix D Wireless LANs

wireless gateway, but out-of-range of each other, so they cannot "hear" each other, that is they do not know if the channel is currently being used. Therefore, they are considered hidden from each other.

RTS/CTS

When station A sends data to the AP, it might not know that the station B is already using the channel. If these two stations send data at the same time, collisions may occur when both sets of data arrive at the AP at the same time, resulting in a loss of messages for both stations.

RTS/CTS is designed to prevent collisions due to hidden nodes. An RTS/CTS defines the biggest size data frame you can send before an RTS (Request To Send)/CTS (Clear to Send) handshake is invoked.

When a data frame exceeds the RTS/CTS value you set (between 0 to 2432 bytes), the station that wants to transmit this frame must first send an RTS (Request To Send) message to the AP for permission to send it. The AP then responds with a CTS (Clear to Send) message to all other stations within its range to notify them to defer their transmission. It also reserves and confirms with the requesting station the time frame for the requested transmission.

Stations can send frames smaller than the specified RTS/CTS directly to the AP without the RTS (Request To Send)/CTS (Clear to Send) handshake.

You should only configure RTS/CTS if the possibility of hidden nodes exists on your network and the "cost" of resending large frames is more than the extra network overhead involved in the RTS (Request To Send)/CTS (Clear to Send) handshake.

If the RTS/CTS value is greater than the Fragmentation Threshold value (see next), then the RTS (Request To Send)/CTS (Clear to Send) handshake will never occur as data frames will be fragmented before they reach RTS/CTS size.

Note: Enabling the RTS Threshold causes redundant network overhead that could negatively affect the throughput performance instead of providing a remedy.

FSG1100HN User’s Guide

145

Page 144 Page 146
Page 145
Image 145
ZyXEL Communications wireless active fiber router manual 145, Rts/Cts
Page 144 Page 146

wireless active fiber router specifications

ZyXEL Communications has made a significant impact in the networking industry with its innovative wireless active fiber routers, known for their robust performance and advanced features. These routers are tailored for both residential and small-to-medium business environments, providing high-speed internet access that leverages the power of fiber-optic technology.

One of the standout features of ZyXEL's wireless active fiber router is its support for ultra-fast broadband connections. By utilizing fiber optics, the router can deliver significantly higher data rates compared to traditional copper-based connections. This technology ensures that users can enjoy seamless video streaming, online gaming, and heavy downloading without interruptions.

The router boasts multiple Gigabit Ethernet ports, allowing for wired connections to devices that require a stable and high-speed internet connection. This is particularly advantageous for gamers and professionals who depend on low latency and reliability in their connection. The combination of both wired and wireless connectivity assures maximum flexibility in network setup.

Wireless performance is another highlight of ZyXEL's offering. Equipped with the latest Wi-Fi 6 technology, the router supports multi-user multiple input multiple output (MU-MIMO) and beamforming technologies. MU-MIMO enables the router to communicate with multiple devices simultaneously, improving overall network efficiency and throughput. Beamforming helps in directing the Wi-Fi signal towards connected devices rather than dispersing it evenly, enhancing coverage and speed in larger areas.

Security is a paramount concern for any networking device, and ZyXEL recognizes this with its advanced security features. The router includes WPA3 encryption, which offers enhanced protection against unauthorized access and ensures a secure connection for all devices on the network. Additional security features include a built-in firewall and support for VPN connections, providing users with peace of mind regarding their online privacy.

For ease of management, ZyXEL has integrated an intuitive web interface and a mobile app that allows users to monitor and control their network settings conveniently. Users can customize their network setup, manage connected devices, and even set parental controls to ensure a safe internet environment for children.

In summary, ZyXEL Communications’ wireless active fiber router stands out with its high-speed broadband capabilities, advanced wireless technologies, robust security features, and user-friendly management interface. These characteristics make it an ideal choice for those looking to enhance their home or business networking experience, ensuring reliable and fast internet access for all connected devices.
Top Page Image Contents