C9800-L-F-K9 – Fixed Wireless Controller – Catalyst 9800-L
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C9800-L-F-K9 Description
Cisco C9800-L-F-K9 (Catalyst 9800-L, Fiber uplink) is a fixed, compact wireless LAN controller that combines Cisco IOS XE with Cisco RF innovations to deliver always-on enterprise Wi-Fi. It offers two 10G/Multigigabit SFP+ fiber uplinks and four 2.5G/1G copper ports, with dedicated management, redundancy, console, and USB interfaces. Built for seamless software updates, SSO high availability, and intent-based automation, it supports modern Cisco 802.11ax (Wi-Fi 6) access points and up to 250 APs/5,000 clients (or 500/10,000 with the Performance license), enabling secure policy, advanced RRM, and telemetry-driven assurance for campuses and distributed sites.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Model |
Cisco Catalyst 9800-L-F-K9 |
|
Max Access Points |
250 (500 with Performance license) |
|
Max Clients |
5,000 (10,000 with Performance license) |
|
Throughput |
5 Gbps (10 Gbps with Performance license)* |
|
Max WLANs |
4,096 |
|
Max VLANs |
4,096 |
|
Fixed Uplinks |
2× 10G/Multigigabit SFP+ fiber |
|
Additional Data Ports |
4× 2.5G/1G copper |
|
Management/Redundancy |
1× RJ-45 mgmt (service), 1× RJ-45 redundancy |
|
Console/USB |
RJ-45 console, Micro-USB console, USB 3.0 |
|
Power Supply |
110W, 12V DC, external AC/DC adapter |
|
Max Power Consumption |
84.5W (assumes 2×2.5W SFP + 4.5W USB load) |
Key Features
Resilient always-on architecture
Supports seamless software upgrades with In-Service Software Upgrade (ISSU), stateful switchover, and N+1 redundancy to ensure nonstop wireless operations.
Advanced network security
Provides Secure Boot, image signing, runtime defenses, Encrypted Traffic Analytics, and WPA3, making the controller a strong first line of defense.
Open programmability
Built on Cisco IOS XE with model-driven telemetry, RESTCONF/NETCONF APIs, and YANG models, simplifying automation and multi-vendor integration.
Intelligent RF management
Integrates Cisco RF excellence with Wi-Fi 6 readiness tools and advanced analytics in DNA Center for proactive optimization and user experience improvement.
Flexible deployment
Supports centralized campus mode, Cisco FlexConnect for branch sites, and fabric integration for intent-based networking across distributed locations.
Scalable performance
Base support of 250 APs/5,000 clients, expandable to 500 APs/10,000 clients with Performance License, ensuring investment protection as demand grows.
Application Scenarios
Provides secure, always-on Wi-Fi with identity-based segmentation for classrooms, dormitories, and administrative buildings.
Ensures reliable patient/guest connectivity with high-availability redundancy and advanced wireless intrusion prevention.
Centralized management with DNA Center and automation APIs simplifies multi-branch deployments, reducing operational costs.
C9800-L-F-K9 Front View
|
Label |
Description |
|
1 |
Service port LED |
|
2 |
Redundancy port LED |
|
3 |
Service Port (SP) (RJ-45) for out-of-band management |
|
4 |
Redundancy port |
|
5 |
RJ-45 console port |
|
6 |
Micro-B USB console |
|
7 |
USB 3.0 port |
|
8 |
2x 10G/Multigigabit fiber |
|
9-12 |
Quad RJ-45 2.5G/1G Multigigabit Ethernet ports |
|
13 |
Reset button |
|
14 |
System LED |
|
15 |
Alarm LED |
|
16 |
High availability LED |
Product Comparison
|
Parameter |
C9800-L-F-K9 | ||
|---|---|---|---|
|
Form factor |
Fixed, compact |
Fixed, compact |
1RU chassis |
|
Data ports |
4×1G RJ-45 copper |
4×1G SFP fiber |
Multiple 10G/1G |
|
Mgmt/Console |
RJ-45 mgmt, RJ-45 console, USB 3.0 |
RJ-45 mgmt, RJ-45 console, USB 3.0 |
RJ-45 mgmt, RJ-45 console, USB |
|
Max APs |
up to 250 |
up to 250 |
up to 2,000 |
|
Max clients |
up to 5,000 |
up to 5,000 |
up to 32,000 |
|
Throughput |
up to 5 Gbps |
up to 5 Gbps |
up to 40 Gbps |
|
HA options |
SSO with peer 9800-L; N+1 |
SSO with peer 9800-L; N+1 |
SSO with peer 9800-40; N+1 |
|
OS |
IOS-XE (Catalyst 9800) |
IOS-XE (Catalyst 9800) |
IOS-XE (Catalyst 9800) |
|
AP gen support |
802.11ac Wave 2 / 802.11ax |
802.11ac Wave 2 / 802.11ax |
802.11ac Wave 2 / 802.11ax |
|
Typical use |
Copper uplinks campus/branch |
Fiber uplinks or long runs |
Large campus core / aggregation |
|
Power |
Internal AC |
Internal AC |
Dual/higher capacity AC |
|
Mounting |
Rack/desk |
Rack/desk |
19″ rack, 1RU |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | Cisco Catalyst C9800-L-F-K9 | Form Factor | Fixed, compact WLC; half-width 1RU |
| Operating System | Cisco IOS XE | Deployment Modes | Centralized, FlexConnect, Fabric |
| Max Access Points | 250 (500 with Performance license) | Max Clients | 5,000 (10,000 with Performance license) |
| Throughput | 5 Gbps (10 Gbps with Performance license)* | WLANs/VLANs | 4,096 / 4,096 |
| Uplinks | 2× 10G/Multigigabit SFP+ fiber | Additional Data Ports | 4× 2.5G/1G copper |
| Management | RJ-45 mgmt (service), RJ-45 redundancy | Console/USB | RJ-45 console, Micro-USB console, USB 3.0 |
| Supported APs | Aironet 802.11ac W1/W2; Catalyst 9100 802.11ax | Security | Secure Boot, image signing, integrity verification |
| Automation | Open APIs, model-driven telemetry | HA | SSO; seamless software updates/patching |
| Power Supply | 110W, 12V DC via external AC/DC adapter | Max Power | 84.5W (assumes 2×2.5W SFP + 4.5W USB) |
| Dimensions (W×D×H) | 8.5 × 9.06 × 1.58 in (21.59 × 23.01 × 4.02 cm) | Weight | 4.01 lb (1.82 kg) |
| Environment (operating) | 0–40°C; 5–95% RH noncondensing | Power Input | 100–240 VAC; 47–63 Hz (adapter input) |
| Heat Dissipation | 288.2 Btu/hr (assumes 2×2.5W SFP + 4.5W USB) | Sound (typ/max) | 40 dBA @25°C / 42.9 dBA @40°C |
Get More Information
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Quality Certifications
Customer Reviews
Questions & Answers
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What deployment size fits C9800-L-F-K9?
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How is C9800-L-F-K9 different from C9800-L-C-K9?
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Which uplink choice makes C9800-L-F-K9 the right SKU?
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Does C9800-L-F-K9 need the performance license?
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Can C9800-L-F-K9 replace AireOS wireless controllers?
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Which optics question matters for C9800-L-F-K9?
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Why do AP disconnect reports mention C9800-L-F-K9?
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What ordering check prevents a C9800-L-F-K9 mismatch?
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