Cisco AIR-WLC4402-12-K9 54MBPS Wireless
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AIR-WLC4402-12-K9 Cisco Aironet 4400 Wireless LAN Control Refurbished

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Part Number#: AIR-WLC4402-12-K9
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Short Description:
AIR-WLC4402-12-K9 4400 Series 4402 IEEE 802.11n + 4 x 1GBE Ethernet Ports 1U Rack-mountable Wireless LAN Controller | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Introduction of the Cisco AIR-WLC4402-12-K9

In the dynamic world of wireless networking, the AIR-WLC4402-12-K9 takes center stage as a pivotal player in Cisco's 4400 series. This comprehensive guide aims to provide an in-depth understanding of the AIR-WLC4402-12-K9 WLAN Controller, shedding light on its features, capabilities, and how it efficiently manages up to 12 Lightweight Access Points (APs). Whether you're a networking professional or a curious enthusiast, join us on a journey through the core aspects of this powerful wireless management solution.

Unveiling the AIR-WLC4402-12-K9

The Heart of the 4400 Series

The AIR-WLC4402-12-K9 is a Wireless LAN (WLAN) Controller designed by Cisco, specifically belonging to the revered 4400 series. As the name suggests, it is equipped to manage and orchestrate the operations of wireless networks, offering a centralized hub for effective administration and optimization.

Managing Wireless Networks with Precision

Centralized Network Control

At the core of the AIR-WLC4402-12-K9 lies its ability to provide centralized control over wireless networks. Instead of individual access points managing their configurations, this WLAN Controller takes charge, ensuring uniformity and streamlined management.

Seamless Integration with Lightweight APs

Designed to complement Cisco's Lightweight Access Points (APs), the AIR-WLC4402-12-K9 seamlessly integrates with these devices. This integration is vital for creating a cohesive wireless network where access points work harmoniously under the controller's guidance.

Managing Up to 12 Lightweight APs

Efficient AP Management

One of the standout features of the AIR-WLC4402-12-K9 is its capability to manage up to 12 Lightweight Access Points. This makes it an ideal choice for mid-sized to large-scale deployments where multiple access points strategically ensure comprehensive coverage.

Enhanced Scalability

The ability to handle 12 Lightweight APs enhances the scalability of the WLAN, allowing it to grow and adapt to changing network requirements. Whether expanding the network or optimizing coverage, the controller accommodates additional access points without sacrificing performance.

Management Protocols

The AIR-WLC4402-12-K9 supports various management protocols, ensuring comprehensive control over network configurations. These include SNMP v1, v2c, and v3, Telnet, TCP/IP-Based Internets MIB, SNMP MIB II, TFTP, Ethernet MIB, SNTP, HTTP, and more. This extensive protocol support facilitates versatile and efficient network management.

Quality of Service (QoS) Support

Quality of Service is a critical aspect of network performance. The AIR-WLC4402-12-K9 prioritizes network traffic, ensuring that crucial data receives the necessary bandwidth for optimal performance. This QoS support contributes to a reliable and responsive wireless network.

Wi-Fi Multimedia (WMM) Support

Enabled with Wi-Fi Multimedia (WMM), the controller ensures enhanced quality for multimedia applications over the wireless network. This support is particularly valuable in environments where video streaming, voice calls, and other multimedia activities are prevalent.

Management and Protocols

SNMP Protocols

Support for SNMP protocols, including SNMP v1, v2c, and v3, enables effective monitoring and management of the WLAN Controller. SNMP provides valuable insights into the performance and health of the network.


Telnet support offers a command-line interface for remote management, providing administrators with a flexible and accessible tool for configuration and troubleshooting.

TCP/IP-Based Internets MIB

The Management Information Base (MIB) for TCP/IP-based Internet ensures that the controller has access to comprehensive information about the network, facilitating efficient management and monitoring.

Quality of Service (QoS)

QoS support allows the controller to prioritize network traffic based on the type of data, ensuring that critical applications receive the necessary resources for optimal performance.

Wi-Fi Multimedia (WMM)

WMM support enhances the quality of service for multimedia applications, creating a network environment that is responsive and reliable for various data types.

Additional Features: Spare Products, Expansion Slots, Uplink Transceiver Slots

  • Spare Product: The designation as a spare product means that the AIR-WLC4402-12-K9 can serve as a replacement or backup device, ensuring continuity in network operations.
  • Expansion Slots: With one expansion slot, the controller provides room for additional functionality or upgrades, contributing to its adaptability.
  • Uplink Transceiver Slots: The inclusion of two uplink transceiver slots enhances connectivity options, allowing for efficient communication with other network devices.

Advantages of the AIR-WLC4402-12-K9

Centralized Management Benefits

Centralized network control offers several advantages. It simplifies network administration, ensures consistent configurations, and provides a unified view of network performance.

Scalability and Adaptability

The ability to manage up to 12 Lightweight APs enhances the controller's scalability. It adapts to the evolving needs of the network, accommodating additional access points for improved coverage and capacity.

Comprehensive Management Protocols

The support for a wide range of management protocols empowers administrators with versatile tools for monitoring, configuration, and troubleshooting. SNMP, Telnet, and other protocols contribute to a robust management framework.

Quality of Service for Optimal Performance

Quality of Service support ensures that critical applications receive the priority they deserve. This is crucial for maintaining a responsive and efficient wireless network, particularly in environments with diverse data types.

Multimedia Support with WMM

The inclusion of Wi-Fi Multimedia (WMM) support enhances the network's ability to handle multimedia applications effectively. Whether it's video streaming or voice calls, the WLAN Controller prioritizes multimedia traffic for an improved user experience.

Spare Product Designation for Reliability

The spare product designation adds a layer of reliability to the AIR-WLC4402-12-K9. In the event of system maintenance or failure, having a spare ensures minimal disruption to network operations.

Expansion and Uplink Transceiver Slots for Versatility

The presence of expansion and uplink transceiver slots makes the controller versatile. Administrators can expand functionality or upgrade the controller, ensuring it remains compatible with evolving network technologies.

Performance of Controller

The Cisco 4402 Wireless LAN (WLAN) Controller (model AIR-WLC4402-12-K9) is a high-performance device that is designed to manage and control wireless networks. It provides centralized management of wireless access points and allows for easy scaling of wireless networks.

The Cisco 4402 controller supports up to 12 access points, providing coverage for up to 512 wireless clients. It also supports multiple radios, allowing for simultaneous support of both 2.4GHz and 5GHz frequency bands.

The controller also provides advanced security features, including support for 802.1X authentication, a Wireless Intrusion Prevention System (WIPS), and a Wireless Control System (WCS) for network-wide security management.

In terms of performance, the Cisco 4402 controller supports a throughput of up to 1 Gbps and provides low-latency wireless connections for real-time applications such as voice and video. Additionally, it has built-in Quality of Service (QoS) features to prioritize different types of network traffic, such as voice and video.

Reliability Information

The Cisco 4402 54 Mbps Wireless LAN Controller (model AIR-WLC4402-12-K9) is a highly reliable wireless controller that is designed to provide centralized management and control of wireless networks.

The controller supports up to 12 wireless access points and can manage up to 500 wireless clients. It is capable of providing wireless coverage for large-scale enterprise environments, such as universities, airports, and corporate offices.

The Cisco 4402 controller is designed to be highly scalable and can be used with Cisco's Aironet wireless access points. It supports a wide range of wireless standards, including 802.11a, 802.11b, 802.11g, and 802.11n.

One of the key features of the Cisco 4402 controller is its ability to provide secure wireless access. It supports a variety of security protocols, including Wired Equivalent Privacy (WEP), Wi-Fi Protected Access (WPA), and WPA2.

The Cisco 4402 controller also features an easy-to-use web-based interface, which allows administrators to easily configure and manage the controller and associated access points. It also includes a variety of troubleshooting and monitoring tools to help diagnose and resolve issues quickly.

In general, This item is a highly reliable wireless controller that is well-suited for large-scale enterprise environments. However, as with any network equipment, it is important to have a maintenance plan in place and regular checkups for software and firmware updates.

General Information about this Cisco AIR-WLC4402-12-K9

  • Manufacturer: Cisco
  • Model Number or SKU# AIR-WLC4402-12-K9
  • Product Line: Aironet
  • Product Series: 4400
  • Product Name: 4400 Wireless LAN Controller
  • Product Type: Wireless LAN Controller

Interfaces/Ports of Cisco Wireless LAN Controller

  • Gigabit Ethernet Port: Yes
  • Number of Network (RJ-45) Ports: 1
  • Management Port: Yes

Management & Protocols of Wlan 4400 Series

Management Protocols:

  • SNMP (Simple Network Management Protocol) v1, v2c, v3
  • Telnet
  • TCP/IP-Based Internets MIB (Management Information Base)
  • TFTP (Trivial File Transfer Protocol)
  • Ethernet MIB
  • SNTP (Simple Network Time Protocol)
  • HTTP (Hypertext Transfer Protocol)
  • Ethernet-like interface types MIB
  • Managed Objects Definitions for Bridges with Traffic Classes, Multicast Filtering, and Virtual LAN Extensions
  • RMON (Remote Monitoring) MIB
  • Interfaces Group MIB
  • Syslog
  • User-Based Security Model (USM) for SNMPv3
  • MIB for SNMP
  • Managed Objects Definitions for IEEE 802.3 MAUs
  • Cisco private MIBs

Miscellaneous Information about AIR-WLC4402-12-K9

Additional Information:

  • Spare product: Yes
  • QoS (Quality of Service): Supported
  • Wi-Fi Multimedia (WMM): Enabled
  • Expansion Slots: 1
  • Uplink Transceiver Slots: 2
  • Capacity: Supports up to 12 Cisco lightweight APs

In summary, the AIR-WLC4402-12-K9 stands as a formidable WLAN Controller designed to optimize wireless network management. Its centralized control, scalability, and support for comprehensive management protocols make it a valuable asset for network administrators.

Whether overseeing a mid-sized enterprise or a large-scale deployment, the AIR-WLC4402-12-K9 offers the tools needed for efficient network administration. Its seamless integration with Lightweight APs, support for QoS and multimedia applications, and spare product designation contribute to its reliability and versatility.

As technology continues to advance, the AIR-WLC4402-12-K9 remains a reliable choice for creating and managing efficient wireless networks. With a focus on streamlined operations, adaptability, and network optimization, this WLAN Controller embodies Cisco's commitment to delivering cutting-edge solutions in the realm of wireless networking.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

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