MAP Overview 181

If only 3COMWX is defined in DNS, the MAP contacts the WX with an IP address returned for 3COMWX.

Distributed MAPs and STP

A Distributed MAP is a leaf device. You do not need to enable STP on the port that is directly connected to the MAP.

If Spanning Tree Protocol (STP) is enabled on the port that is directly connected to a Distributed MAP, you might need to change the STP configuration on the port, to allow the MAP to boot.

STP on a port directly connected to a Distributed MAP can prevent the MAP from booting.

As part of the boot process, a MAP disables and reenables the link on the port over which the MAP is attempting to boot. If STP is enabled on the device that is directly connected to the port, the link state change can cause the port on the other device to leave the forwarding state and stop forwarding traffic. The port remains unable to forward traffic for the duration of the STP forwarding delay.

A MAP waits 30 seconds to receive a reply to its DHCP Discover message, then tries to boot using the other MAP port. If the boot attempt fails on the other port also, the MAP then reattempts to boot on the first port.

The process continues until a boot attempt is successful. If STP prevents the other device’s port from forwarding traffic during each boot attempt, the MAP repeatedly disables and reenables the link, causing STP to repeatedly stop the other device’s port from forwarding traffic. As a result, the boot attempt is never successful.

To allow a MAP to boot over a link that has STP enabled, do one of the following on the other device:

„Disable STP on the port of the other device.

„Enable the port fast convergence feature, if supported, on the other device port. (On some vendors’ devices, this feature is called PortFast.)

„If the other device is running Rapid Spanning Tree or Multiple Spanning Tree, set the port into edge port mode.

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3Com WX4400 3CRWX440095A, WXR100 3CRWXR10095A, WX1200 3CRWX120695A, WX2200 3CRWX220095A manual Distributed MAPs and STP
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WX1200 3CRWX120695A, WX4400 3CRWX440095A, WXR100 3CRWXR10095A, WX2200 3CRWX220095A specifications

The 3Com WX2200 (3CRWX220095A), WX4400 (3CRWX440095A), WX1200 (3CRWX120695A), and WXR100 (3CRWXR10095A) are part of a robust suite of wireless networking solutions offered by 3Com, designed to meet the needs of modern enterprise environments. These devices provide reliable connectivity, flexibility, and scalability, making them ideal for businesses of all sizes.

The 3Com WX2200 is a high-performance wireless switch that supports up to 64 access points, making it suitable for medium to large deployments. It boasts advanced features such as dynamic RF management, which optimizes channel selection and power levels based on real-time network conditions. This ensures maximum coverage and minimizes interference, leading to improved user experiences. Additionally, it supports dual-band operation and can seamlessly integrate with various wireless access points, providing enhanced throughput and robust performance.

The WX4400 is designed for high-density environments and offers extensive scalability. It supports up to 128 access points and is equipped with advanced security features, including WPA2 enterprise encryption and role-based access control. This switch also features intelligent load balancing, allowing it to dynamically distribute user traffic across available access points, thus enhancing overall network efficiency.

The WX1200, positioned as an entry-level solution, is well-suited for small to medium-sized businesses. It offers a user-friendly management interface, allowing IT staff to quickly configure and monitor the network. This device supports a variety of deployment scenarios and can be easily integrated into existing infrastructure. It also comes equipped with essential security features to protect the network from unauthorized access.

The WXR100 complements the series by providing simplified management for access points, ensuring that businesses can easily deploy and maintain their wireless networks. It supports various management protocols and integrates with a variety of third-party systems, enhancing inter-operability. With Power over Ethernet (PoE) support, the WXR100 can deliver power to connected access points, reducing the complexity and costs associated with additional power infrastructure.

Together, these solutions embody 3Com's commitment to delivering high-quality networking products that enhance connectivity and performance. With features such as scalability, advanced security, dynamic load balancing, and centralized management, the WX2200, WX4400, WX1200, and WXR100 form a comprehensive wireless networking ecosystem tailored for today’s enterprise challenges.
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