Infrastructure mode

Definition

Infrastructure mode is a networking configuration in wireless local area networks (WLANs) where devices connect to a central access point (AP) instead of communicating directly with one another. This setup allows multiple devices to communicate efficiently, manage network traffic, and provide access to shared resources such as the internet. It is a critical feature within the 802.11 standards that enhances connectivity and network management.

5 Must Know Facts For Your Next Test

1. In infrastructure mode, all wireless devices must connect through an access point, allowing for more structured communication compared to ad hoc mode.
2. This mode supports features like roaming, where devices can move between different access points while maintaining their connection.
3. Security features such as WPA2 can be implemented more effectively in infrastructure mode due to the centralized control of access points.
4. Infrastructure mode is essential for larger networks as it allows for better management of bandwidth and overall network performance.
5. The 802.11 standards specify various protocols for both infrastructure and ad hoc modes, but infrastructure mode is more commonly used in enterprise settings.

Review Questions

• How does infrastructure mode enhance network management compared to ad hoc mode?
  • Infrastructure mode enhances network management by centralizing communications through an access point, which allows for better control over network traffic and resources. Unlike ad hoc mode, where devices communicate directly with each other, infrastructure mode provides a structured environment that can efficiently handle multiple connections. This setup also enables features like roaming and centralized security measures, making it more suitable for larger networks.
• Discuss the role of an access point in infrastructure mode and its impact on wireless connectivity.
  • The access point in infrastructure mode serves as the central hub for wireless devices, facilitating their connection to the network. It acts as a bridge between wired and wireless networks, managing data traffic and providing access to shared resources like the internet. The effectiveness of an access point impacts overall wireless connectivity by determining the range, bandwidth distribution, and security of the network.
• Evaluate how infrastructure mode supports security measures in wireless networks and its significance in modern networking.
  • Infrastructure mode significantly enhances security measures in wireless networks by allowing for centralized authentication and encryption protocols, such as WPA2. This centralized approach ensures that all devices connecting to the network adhere to the same security policies, reducing vulnerabilities associated with direct device-to-device communication found in ad hoc mode. The ability to monitor traffic through the access point also aids in detecting unauthorized access attempts and maintaining overall network integrity, making it essential for modern networking environments.

Related terms

Access Point (AP): A hardware device that allows wireless devices to connect to a wired network, serving as a bridge between the wired and wireless parts of a network.

Ad Hoc Mode: A networking mode where devices communicate directly with each other without the need for a central access point, suitable for temporary networks.

Wireless Distribution System (WDS): A system that allows the interconnection of access points wirelessly, enabling extended coverage and network expansion without additional cabling.