C9800-80-K9 – Wireless Controller

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C9800-80-K9

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C9800-80-K9 Description

C9800-80-K9
Cisco C9800-80-K9 (Catalyst 9800-80 Wireless LAN Controller) delivers carrier-grade, always-on enterprise Wi-Fi at large scale. Built on Cisco IOS XE with open APIs and model-driven telemetry, it supports modern Cisco Wi-Fi 6 access points, advanced RF automation, and identity-based policies. With up to 80 Gbps data-plane capacity, high-density AP and client limits, and 1:1 SSO high availability, the C9800-80 suits large campuses, hospitals, universities, and government sites requiring secure, resilient, and automated WLAN operations.

Quick Specs

Parameter

Specification

Model

Cisco Catalyst C9800-80-K9

Max Access Points

up to 6000

Max Clients

up to 64,000

Data Plane Throughput

up to 80 Gbps

Max WLANs

4,096

Max VLANs

4,096

Uplinks

multiple 10G SFP+ ports; high-speed aggregation capable

High Availability

1:1 SSO, N+1

Operating System

Cisco IOS XE (Catalyst 9800 software)

Deployment Modes

Centralized, FlexConnect, Fabric Wireless (SD-Access)

Management

Web UI, CLI, NETCONF/RESTCONF APIs, SNMP

Supported APs

Cisco Aironet 802.11ac Wave 1/2, Catalyst 9100 802.11ax

Key Features

Enterprise-scale performance

Supports very high AP and client densities with up to 80 Gbps data-plane throughput to serve mission-critical, high-density venues.

Always-on resiliency

Provides seamless upgrades and 1:1 stateful switchover so maintenance and failures have minimal impact on users and services.

Defense-in-depth security

Implements secure boot, image integrity checks, WPA3, and advanced policy segmentation, helping enforce zero-trust enterprise WLAN.

Open programmability and automation

Offers model-driven telemetry and open APIs (NETCONF/RESTCONF/YANG) for day-0 to day-N automation and multi-tool integration.

Intelligent RF and user experience assurance

Combines Cisco RF excellence with analytics to optimize channels, power, and airtime while surfacing actionable insights to IT.

Flexible deployment options

Supports centralized campus, FlexConnect for branches, and Fabric Wireless, ensuring consistent policy and operations at scale.

Applications Scenarios

Large campus enterprises and headquarters

High-density office, conference, and auditorium coverage with nonstop upgrades and centralized policy control.

Healthcare and government facilities

Robust security, segmentation, and HA for clinical devices, critical apps, and compliance-sensitive environments.

Universities and multi-site education

Stable Wi-Fi for lecture halls and dorms, with telemetry-driven insights and automation to simplify semester-peak operations.

C9800-80-K9 Front View

C9800-80-K9

Label

Component

1

Power supply (PEM 0)

2

Power supply (PEM 1)

3

Power (PWR) switch

4

PWR: Power LED

5

SYS: System LED

6

ALM: Alarm LED

7

HA: High-availability LED

8

SP: RJ-45 10/100/1000 management Ethernet port

9

RP: RJ-45 10/100/1000 redundancy Ethernet port

10

RP: 1G SFP port (the only SFPs supported on the RP port are GLC-SX-MMD and GLC-LH-SMD)

11

USB ports 0 and 1

12

Fixed: 6x 10G and 2x 1G or 8x 10G

13

CON: RJ-45 compatible console port

14

LINK: RJ-45 connector LED

15

CON: Mini USB console port

16

SSD: SSD activity LED

17

SSD access

18

Modular uplink

Product Comparison

Parameter

C9800-L-F-K9

C9800-40-K9

C9800-80-K9

Max APs

250 (500 with Performance license)

up to 2000

up to 6000

Max clients

5000 (10,000 with Perf lic)

up to 32,000

up to 64,000

Data plane throughput

5–10 Gbps

up to 40 Gbps

up to 80 Gbps

WLANs

4,096

4,096

4,096

VLANs

4,096

4,096

4,096

Uplinks

2×10G SFP+ + 4×2.5G/1G

multiple 10G SFP+

multiple 10G SFP+ (higher aggregate)

Form factor

compact, half-width 1RU

1RU

2RU class (high-capacity)

High availability

SSO, N+1

SSO, N+1

SSO, N+1

Automation

DNA Center, APIs, telemetry

DNA Center, APIs, telemetry

DNA Center, APIs, telemetry

Typical scale

branch/smaller campus

mid/large campus

very large campus/aggregation

Specifications

Parameter Specification Parameter Specification
Model Cisco Catalyst C9800-80-K9 Form factor High-capacity controller, rack-mount
Operating system Cisco IOS XE (Catalyst 9800 WLC) Deployment modes Centralized, FlexConnect, Fabric Wireless
Max access points up to 6000 Max clients up to 64,000
Data plane throughput up to 80 Gbps WLANs / VLANs 4096 / 4096
Uplinks multiple 10G SFP+ ports (aggregation capable) Redundancy 1:1 SSO, N+1
Management Web UI, CLI, SNMP, NETCONF/RESTCONF Console / USB RJ-45 and/or Micro-USB console, USB 3.0
Programmability Open APIs, YANG models, streaming telemetry Assurance DNA Center integration, analytics
Security Secure Boot, image signing, integrity verification WLAN security WPA3/WPA2, 802.1X, RADIUS/TACACS
QoS and visibility NBAR2 app recognition, Flexible NetFlow AP support Aironet 11ac W1/W2, Catalyst 9100 (11ax)
Power AC power supply (redundant PSU options) Thermal / acoustics Per datasheet values
Dimensions and weight Per datasheet values Environment Operating temp/humidity per datasheet
Compliance Safety/EMC certifications per datasheet Licensing Smart Licensing; DNA Essentials/Advantage

Get More Information

Discover unbeatable prices and fast shipping for the C9800-80-K9 Access the detailed C9800-80-K9 datasheet and ensure you’re getting the best deal with our reliable delivery service. Need assistance? Our free live chat support is here to help. For more information about the product and pricing, contact us via Live chat or email us at [email protected]

Quality Certifications

Customer Reviews

Write A Review
5.0
(3 reviews)
5 Stars
3
4 Stars
0
3 Stars
0
2 Stars
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1 Stars
0
    General Hux
    Posted on 05/08/2024
    Verified Buyer
    5.0

    Total control. The system is fully operational. Logistics were acceptable.

    CTO
    Posted on 20/04/2024
    Verified Buyer
    5.0

    Managing 6000 APs. This beast doesn’t blink. Modular uplinks are great.

    Supply Chain
    Posted on 25/11/2023
    Verified Buyer
    5.0

    Heavy unit, palletized well. Arrived on time.

Questions & Answers

  • Where does Cisco C9800-80-K9 fit relative to C9800-40-K9?

    C9800-80 is a high-scale wireless controller for large campuses and enterprises, supporting more APs, clients, and throughput than the C9800-40. Choose it for dense sites and multi-building deployments.

  • What HA strategies are recommended?

    SSO redundancy with dual controllers, diverse power, and ISSU-capable upgrades where supported. Monitor failover timers and client experience during drills.

  • Does C9800-80-K9 support Wi-Fi 6E?

    Yes, with compatible Catalyst 6E APs and code. Plan spectrum usage and client capabilities carefully, especially in 6 GHz bands.

  • How does it integrate with DNA Center and SD-Access?

    Full integration enables automation, policy, and assurance. Fabric-enabled wireless extends segmentation and consistent policy end-to-end.

  • What about security and onboarding?

    Supports WPA3, 802.1X, guest portals, and device profiling. Integrate with ISE for policy-based access and posture checks.

  • Which telemetry and analytics help at scale?

    Streaming telemetry, Assurance dashboards, and client health KPIs surface roaming failures, interference, or DHCP/DNS issues quickly.

  • Is QoS automated for collaboration apps?

    Application visibility and policies mark and prioritize traffic for voice/video, improving roaming experience under load.

  • Any migration guidance from AireOS?

    Map WLANs and policies, validate AP compatibility, and perform phased AP moves with rollback plans.

  • Licensing?

    Smart licensing per AP and feature tier; ensure sufficient entitlements before large turn-ups.

  • How to secure management?

    Use RBAC, TACACS/ISE, encrypted protocols, and management VRFs or ACLs to isolate control traffic.

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Resources Downloads

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