Enterprise Wireless Network Management

The Cisco C9800-40-K9 is a high-performance fixed wireless LAN controller from the Cisco Catalyst 9800 Series. Designed for enterprise and campus networks, it provides centralized management, configuration, security, policy enforcement and monitoring for Cisco wireless access points and connected wireless clients.

Built on Cisco IOS XE, the Catalyst 9800-40 combines enterprise wireless control with modern networking, automation and security capabilities. Its 1RU form factor makes it suitable for professional data centers, network operation centers, campus networks and other environments requiring a dedicated wireless controller.

Key Features

High-Performance Wireless Infrastructure

The Catalyst 9800-40 provides centralized control over Cisco wireless access points and wireless clients. Network administrators can use the controller to configure WLANs, manage access points, apply wireless policies and monitor the operational status of the wireless infrastructure.

The controller is designed to support large-scale enterprise wireless deployments where centralized management, security and operational visibility are required. It can be integrated into campus and enterprise network architectures alongside Cisco switching, routing and security infrastructure.

10G SFP/SFP+ Network Connectivity

The C9800-40-K9 includes four high-speed Ethernet traffic interfaces supporting 1 Gigabit and 10 Gigabit SFP/SFP+ connectivity. These interfaces provide flexible uplink options for connecting the controller to enterprise switching, aggregation and core network infrastructure.

Wireless Capacity

The Catalyst 9800-40 is designed for large wireless environments and supports up to 2,000 access points and 32,000 wireless clients. This capacity makes it suitable for large campuses, enterprise buildings, educational institutions, healthcare facilities, hospitality environments and other high-density deployments.

Centralized Wireless Management

Cisco IOS XE provides the software foundation for centralized wireless configuration and management. Administrators can configure access points, WLANs, wireless policies, security parameters and client access from the controller.

• Centralized access-point management
• Wireless LAN configuration
• Wireless client management
• Centralized policy enforcement
• RF management and monitoring
• Enterprise network automation
• Secure controller administration

Enterprise Security and Policy Control

The Catalyst 9800 platform provides centralized security and policy functions for enterprise wireless environments. Network administrators can apply consistent wireless access policies and security configurations across managed access points and clients.

The controller can be integrated with broader Cisco security and identity architectures to provide centralized control over wireless network access and operational policies.

Cisco IOS XE Platform

The C9800-40-K9 operates on Cisco IOS XE, providing a modern software architecture for enterprise networking and wireless management. IOS XE supports programmability, automation and centralized configuration capabilities required for modern enterprise infrastructure.

Hardware Design

The Cisco Catalyst 9800-40 is designed in a compact 1RU rack-mount form factor. Its standard rack-compatible chassis allows installation in enterprise network racks and data-center infrastructure.

Power and Environmental Specifications

The Catalyst 9800-40 is designed for installation in controlled enterprise network environments. The controller supports enterprise power and environmental requirements appropriate for rack-mounted network infrastructure.

Management Interfaces

The controller provides multiple interfaces for configuration, management and network connectivity. These include dedicated management and console connectivity alongside the high-speed traffic interfaces.

• RJ-45 management connectivity
• RJ-45 console interface
• USB console connectivity
• USB 3.0 interfaces
• 1G/10G SFP/SFP+ traffic ports

Ideal Applications

End-of-Sale and Replacement Information

Cisco identifies the CW9800M as a replacement platform for the C9800-40 series. Organizations planning a replacement should verify the required access-point count, client capacity, throughput, licensing and network-interface requirements before selecting the replacement.

Why Choose Cisco C9800-40-K9?

The Cisco C9800-40-K9 provides a centralized enterprise wireless controller architecture for large-scale Cisco WLAN deployments. With support for up to 2,000 access points, 32,000 clients and four 1G/10G SFP/SFP+ traffic interfaces, it is designed for high-capacity enterprise wireless management.

Cisco IOS XE, centralized security and policy management, scalable wireless control and a compact 1RU form factor make the Catalyst 9800-40 suitable for large campus and enterprise wireless environments.