Cisco C9800-L-F-K9 Wireless Local Area Network Controller

I. Basic Information
Brand: Cisco
Model: C9800-L-F-K9
Product Type: Catalyst 9800-L Compact Enterprise Wireless Controller (Fiber Upstream Version)
Operating System: Cisco IOS XE
Rack Specifications: 1RU Half-width Rack-mounted, can be deployed side-by-side in a 19-inch cabinet
Positioning: Core equipment for small and medium-sized enterprises, campuses, and branch offices for centralized Wi-Fi control
Model Suffix Explanation
F: Fiber optic upstream, equipped with 2 10G SFP+ optical ports; the copper port model of the same series is C9800-L-C-K9
K9: Standard high-strength encryption firmware version, supports WPA3, IPsec, MACsec, etc. security encryption functions

Hardware Port Configuration
Upstream Optical Port: 2×10G SFP+ Gigabit Fiber Interface (can be paired with 1G/10G SFP optical modules)
Gigabit Electrical Port: 4×1G/2.5G Multi-rate RJ45 Ethernet Service Ports
Management Interface: 1×RJ45 Management Port, RJ45 Console Debug Port, Micro-USB Debug Port, USB3.0 Interface
Power Supply Method: External AC Power Adapter, wide voltage 90~264V AC, maximum power consumption approximately 85W

Core Performance Parameters
Overall Throughput: 5Gbps
Maximum Managed AP Quantity: 250 (Supporting Wi-Fi 6/6E Catalyst 9100 Series, 802.11ac Wireless AP)
Maximum Online Terminal Quantity: 5000 Wireless Clients
Maximum WLAN Quantity: 4096
Maximum VLAN Quantity: 4096
Deployment Mode: Local Centralized Forwarding, FlexConnect Remote Branch Forwarding, SD-Access Fabric Virtualized Deployment

Core Functional Features
1. Enterprise-level Wireless Management
Unified management of all network wireless APs, enabling SSID distribution, RF channel power optimization, wireless roaming, load balancing, illegal AP detection, and support for cross-layer fast roaming.
2. Rich Security Capabilities
Support for WPA2/WPA3 enterprise-level encryption, 802.1X authentication, MAC address authentication
Built-in state firewall, encrypted traffic analysis ETA, secure boot SUDI device unique trusted authentication
Can be connected to Cisco AMP malicious traffic protection, ISE identity access control system
3. High-Reliability Redundancy Design
Support for SSO primary-backup redundancy, N+1 cluster redundancy, device failure seamless switching without interrupting wireless services
Support for hot patch online upgrade, no need to disconnect the network to complete firmware iteration, zero downtime for expansion and addition of AP
4. Intelligent Operation and Maintenance Management
Management Methods: Web graphical interface, CLI command line, Cisco DNA Center, Prime Infrastructure Platform, REST API third-party integration
Support for wireless fault diagnosis, spectrum analysis, terminal behavior auditing, log alerts, fault traceability

Environmental and Certification Parameters
Operating Temperature: 0℃ ~ +40℃; Storage Temperature: -25℃ ~ +70℃
Operating Humidity: 5%~95% RH (No Condensation)
Certifications: CE, FCC, CCC, UL, RoHS Environmental Certification
Standard 1-year original hardware warranty, support for upgrade maintenance service

Typical Application Scenarios
Headquarters of small and medium-sized enterprises, industrial parks, hotels, shopping malls centralized Wi-Fi networking
Multi-branch FlexConnect Distributed Wireless Unified Management
High-density wireless terminal access scenarios in hospitals, schools and factories
Smooth upgrade and network transformation replacement of the original AireOS old-generation wireless controllers