Cisco C9800-L-F (C9800-L-F-K9) Full Official Product Description
1. Part Number & Naming Definition
Official Full Name
Cisco Catalyst 9800-L Wireless Controller, Fiber Uplink Model
Formal SKU:C9800-L-F-K9, commonly shortened as C9800-L-F in industry trading
Naming Breakdown
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C9800: Catalyst 9800 next-generation IOS XE wireless controller platform
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L: Low-density compact appliance form factor
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F: Fiber variant, equipped with SFP+ fiber uplink interfaces
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K9: Base image with enterprise cryptographic license suite
Core Product Positioning
The Cisco Catalyst 9800-L-F is a compact, intent-based wireless LAN controller powered by Cisco IOS XE. It delivers centralized management for Cisco Catalyst Wi-Fi 6 / Wi-Fi 6E and legacy Wave 2 Aironet access points. Designed for small campuses, medium enterprises and enterprise branch sites, it provides unified RF management, robust wireless security, seamless client mobility and SD-Access integration. The fiber uplink model offers flexible optical networking options for long-distance uplink connections, supporting modern centralized and distributed FlexConnect wireless architectures.
2. Hardware Compatibility & Supported Software
Supported Access Points
Cisco Catalyst 9100 series Wi-Fi 6/6E APs, Aironet 1800/2800/3800/4800 Wave 2 lightweight CAPWAP access points.
Unsupported Devices
Autonomous IOS APs, legacy LWAPP-only APs, Meraki access points.
Supported IOS XE Firmware Releases
Minimum Release: IOS XE 17.3.x; Validated releases: 17.6, 17.9, 17.12
Capacity Baseline
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Default throughput: 5 Gbps
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Maximum supported APs: 200 (upgradeable via LIC-C9800L-PERF license)
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Maximum concurrent wireless clients: 4000
3. Physical & Electrical Technical Specifications
Form Factor
Compact desktop appliance, optional rack-mount kit for 19-inch rack installation
Front Panel Interfaces
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2 × 10G SFP+ fiber uplink ports (1/10G compatible, F variant exclusive)
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4 × 2.5GBASE-T copper Ethernet ports
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1 × RJ45 1G out-of-band management port
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1 × Dedicated redundancy port for SSO peer communication
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1 × Micro-USB console port for local CLI access
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1 × USB 3.0 port for configuration backup & firmware upload
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LED indicators: Power, System Status, Fault, Port Link/Activity
Power Specifications
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Single external AC power adapter, universal input: 90–264 VAC 50/60 Hz
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Maximum power consumption: 84.5W
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Optional redundant external power supply for power redundancy
Environmental Operating Parameters
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Operating temperature: 0°C to 40°C (32°F – 104°F)
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Storage temperature: -25°C to 70°C (-13°F – 158°F)
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Relative humidity: 5% – 95% non-condensing
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Maximum operating altitude: 3000 meters
4. Key Wireless & Networking Feature Set
Wireless Infrastructure & Mobility
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CAPWAP encrypted lightweight AP tunneling
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Multiple deployment modes: Local Mode, FlexConnect, Bridge Mode
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Intelligent RF Resource Management (RRM), CleanAir spectrum analytics
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Intra & inter-controller Layer 2 / Layer 3 client roaming
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AP Stateful Switchover (AP SSO) for high availability pairs
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WMM QoS for voice, video, data and IoT traffic prioritization
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Rogue AP detection, classification and containment
Enterprise-Grade Wireless Security
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WPA3-Enterprise, WPA3-Personal, WPA2 AES encryption support
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802.1X authentication: EAP-TLS, PEAP, EAP-FAST
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Built-in web authentication portal for guest wireless access
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SD-Access integration, TrustSec security group tagging
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Secure Boot, runtime integrity verification, encrypted firmware
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DTLS encryption for CAPWAP control and data tunnels
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AAA integration with RADIUS, TACACS+, ISE
Networking & Management Capabilities
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802.1Q VLAN trunking, dynamic wireless interface support
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Multicast optimization for video and IoT streams
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Programmatic automation: NETCONF, RESTCONF, Model-Driven Telemetry
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Secure management: SSHv2, HTTPS, SNMPv3, Syslog
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Centralized orchestration via Cisco Catalyst Center (DNA Center)
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Support for ISSU non-disruptive in-service software upgrade
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Built-in diagnostic tools, traffic mirroring, real-time client monitoring
5. Typical Enterprise Deployment Use Cases
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Medium Enterprise Headquarters Wireless Core: Manage centralized Wi-Fi for office staff, IoT and guest users
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Large Branch Office Centralized Wireless: Deploy FlexConnect architecture for remote enterprise branches
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Small Campus Wi-Fi Aggregation: Support classrooms, retail and healthcare site wireless services
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SD-Access Fabric Wireless Edge: Integrate with Cisco Identity Services Engine for zero-trust access
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Wireless network migration project: Upgrade legacy AireOS controllers to modern IOS XE architecture
6. Regulatory & Compliance Certifications
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Safety: UL 60950-1, CSA C22.2 No.60950-1, IEC/EN 60950-1
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EMC & EMI: CE Mark, FCC Part 15 Class A, ICES-003 Class A, VCCI Class A
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Environmental: EU RoHS 2.0 compliant, EU WEEE compliant
7. Standard Factory Package Contents
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Cisco C9800-L-F-K9 Catalyst 9800-L Fiber Uplink Wireless Controller
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External AC power adapter and mains power cord
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Micro USB console cable
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Hardware installation quick start guide
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Regulatory safety documentation set
Lifecycle Status Note
Cisco Catalyst 9800-L series is active sale and fully supported by Cisco TAC with ongoing IOS XE maintenance releases.
UNSPSC Classification Code
43222612 – Cisco C9800-L-F-K9 compact IOS XE wireless LAN controller with dual 10G SFP+ fiber uplinks, supporting CAPWAP lightweight access points, WPA3 security, AP SSO high availability and SD-Access integration, targeted for medium enterprise and branch office Wi-Fi deployments.
Standard Hardware Warranty
Original new hardware carries a 1-year limited factory hardware warranty against manufacturing defects. Cisco DNA Support Service provides 24×7 priority TAC technical support, advance spare replacement and validated IOS XE firmware updates.
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