The Cisco CW9800L Wireless Controller is a one-rack-unit wireless controller for small and medium-sized networks, supporting up to 500 access points, 10,000 clients, and 10 Gbps of throughput. It provides centralized wireless control, branch deployment through Cisco FlexConnect, and SD-Access Wireless fabric operation in a compact appliance.
Product role and deployment fit
The CW9800L is designed for organizations that require enterprise wireless control without the physical scale of a larger controller platform. Its stated capacity is suitable for growing businesses, educational campuses, distributed locations, and branch networks that need centralized policy and operational control.
The platform supports Wi-Fi 5 Wave 2, Wi-Fi 6, Wi-Fi 6E, and Wi-Fi 7 access points. The controller operates on Cisco IOS XE and integrates with Catalyst Center for analytics, troubleshooting, and network automation. Cloud monitoring is available through the Meraki dashboard.
The controller supports three deployment modes:
- Centralized local deployment
- Distributed Branch deployment using Cisco FlexConnect
- SD-Access Wireless fabric deployment
The appliance supports up to 500 access points and 10,000 clients. These are maximum platform values, not a recommendation to design every deployment at the limit. Presales sizing should account for client density, roaming behavior, application traffic, WLAN count, security processing, redundancy requirements, and expected growth.
The maximum stated throughput is up to 10 Gbps. The controller has two fixed 1G/10G SFP+ uplinks, and both ports must be connected to the switch for traffic handling. These ports carry traffic between access points and the controller, northbound traffic, in-band management traffic, and wireless client traffic.
Capacity and feature limits
| Capability | Maximum or supported value | Presales interpretation |
|---|---|---|
| Access points | 500 | Suitable for small and medium wireless estates |
| Wireless clients | 10,000 | Size against expected concurrent clients, not only registered devices |
| Throughput | Up to 10 Gbps | Uplink and traffic design must support the expected aggregate load |
| WLANs | 4,096 | Supports extensive SSID and service segmentation, but operational simplicity should guide actual use |
| VLANs | 4,096 | Supports large VLAN mappings where the switching architecture is designed accordingly |
| Site tags | 250 | Supports site-oriented policy and configuration organization |
| Flex APs per site | 400 | Relevant to branch and distributed deployments |
| Policy tags | 4,096 | Supports granular policy assignment |
| RF tags | 250 | Supports RF configuration grouping |
| RF profiles | 500 | Allows differentiated RF policy across locations and deployment types |
| Policy profiles | 4,096 | Supports extensive policy profile assignments |
| Flex profiles | 250 | Supports distributed branch configuration models |
| Uplinks | 2 x 1G/10G SFP+ | Fiber or compatible copper/DAC selection is required |
| Processor | Intel Icelake-D LCC, 8-core, 2 GHz | Dedicated controller processing platform |
| Form factor | 1 RU appliance | Suitable for standard rack or tray-based installation |
| Maximum power consumption | 90 W with 4.5 W USB load | Use for power and thermal planning |
The published limits should be treated as independent maximums. For example, a deployment approaching 500 access points and 10,000 clients may not also be expected to use the maximum number of WLANs, tags, profiles, and VLANs without validating the intended configuration and traffic model.
Network interfaces and physical connectivity
The front panel provides two 1/10G SFP ports, a USB 3.0 Type C port, Micro USB and RJ-45 console ports, and RJ-45 service and redundancy ports.
| Interface | Function | Engineering use |
|---|---|---|
| Two 1/10G SFP+ ports | Wireless, northbound, management, and client traffic | Connect to the switching infrastructure; select supported 1G or 10G optics and cables |
| RJ-45 console port | Out-of-band management | Serial access for initial setup and recovery |
| Micro USB console port | Out-of-band management | Alternative console connection |
| USB 3.0 Type C | External memory | Supports external memory connection and may be used with application hosting workflows |
| RJ-45 management port | Service port for out-of-band management | Isolated management connectivity |
| RJ-45 redundancy port | Redundancy and SSO | Used for high-availability connectivity |
| Kensington lock | Physical security | Supports appliance retention in appropriate locations |
| Power adapter connection | External AC adapter input | Uses the supplied power adapter unless an alternative supported arrangement is designed |
The two SFP+ ports support 1G and 10G operation. The data sheet lists supported 1G modules including GLC-TE, GLC-LH-SMD, and GLC-SX-MMD. Listed 10G options include Finisar-LR, Finisar-SR, SFP-10G-AOC series assemblies, SFP-10G-BXD-I, SFP-10G-BXU-I, SFP-10G-LR, SFP-10G-LR-S, SFP-10G-SR, SFP-10G-SR-I, SFP-10G-SR-S, SFP-10G-ZR-I, and the listed SFP-H10GB copper assemblies.
The following copper assemblies require IOS XE release 17.18.3 or later:
- SFP-H10GB-CU1M
- SFP-H10GB-CU1-5M
- SFP-H10GB-CU2M
Additional listed SFP-H10GB assemblies are SFP-H10GB-ACU10M, SFP-H10GB-ACU7M, SFP-H10GB-CU2.5M, SFP-H10GB-CU3M, and SFP-H10GB-CU5M.
Presales design should confirm the switch-side port speed, transceiver type, fiber plant, distance, and software compatibility before ordering. The data sheet does not identify a universal optic for every installation condition; the selected module must match the physical medium and switch interface.
High availability and resiliency
The CW9800L supports a redundancy port for Stateful Switch Over, or SSO. The platform also supports an optional redundant power arrangement using the CW9800L-RPS= kit. This kit combines a redundant power supply module, an 8-pin to 6-pin DC cable, and an additional power supply with power cord.
The redundancy design should be treated as two separate engineering decisions:
- Controller state and service resiliency through the redundancy port and SSO.
- Power resiliency through the optional redundant power supply arrangement.
The power option protects against a single power supply path failure but does not replace independent upstream power design. For higher availability, the two power sources should be connected to separately protected power circuits where the facility design supports this.
The HA LED provides operational status indications including HA Active, HA Standby Hot, peer not found, standby cold, and HA maintenance. A red indication is associated with the controller being powered on and loading bootstrap firmware, together with the system and alarm LED conditions described in the data sheet.
Wireless, security, and management capabilities
The wireless standards list covers IEEE 802.11a, b, g, d, h, n, k, r, u, w, 802.11ac Wave 1 and Wave 2, 802.11ax, and 802.11be. WMM and 802.11e are also supported.
Security capabilities include:
- WPA2 and RSN through IEEE 802.11i
- WPA3
- IEEE 802.1X
- RADIUS authentication and accounting
- RADIUS dynamic authorization extensions
- EAP and EAP-TLS
- Web-based authentication
- TACACS support for management users
- DTLS
- TLS versions listed in the data sheet
- IPsec encryption options
- AES, DES, and 3DES encryption options
- Public key infrastructure certificate and certificate revocation list support
The encryption list includes AES-CBC, AES-CCM, CCMP, DES-CBC, 3DES, RC4 128-bit, RSA 1024-bit and 2048-bit, DTLS AES-CBC, and IPsec DES-CBC, 3DES, and AES-CBC. IPsec AES-CBC is identified as supported only for FIPS use cases.
The platform also supports Encrypted Traffic Analytics and Software-Defined Access. These functions should be evaluated against the broader identity, segmentation, telemetry, and policy architecture rather than treated as isolated controller features.
Management interfaces include:
- Web-based HTTP and HTTPS
- Command-line access through Telnet, SSH, and serial console
- SNMP versions 1, 2c, and 3
- NETCONF
- Cisco private MIBs
- Syslog
- TFTP
- RMON
- YANG and related NETCONF capabilities
For production management, the design should prioritize secure management paths, role separation, AAA integration, centralized logging, and controlled out-of-band access. Telnet is listed as supported, but SSH should be used where secure CLI access is required.
Software and platform integration
The minimum required software is Cisco IOS XE 17.18.2 or later. Catalyst Center support is listed as version 2.3.7.10.
The platform supports application hosting containers when ordered with the additional 32 GB storage option. The storage option is order-time only and cannot be added after the sale. Application hosting therefore needs to be identified during the bill-of-materials and solution design stages.
The controller integrates with Catalyst Center for AI-driven analytics, troubleshooting, and network automation. It also supports cloud monitoring through the Meraki dashboard. These management options should be mapped to the customer’s intended operating model before deployment. A design should identify which system owns configuration, monitoring, alerting, and lifecycle processes.
Physical and environmental specifications
The CW9800L measures 8.5 inches wide, 9.24 inches deep, and 1.58 inches high. Metric dimensions are 216 mm wide, 235 mm deep, and 40 mm high. The listed weight is 4.6 lb, or 2.1 kg.
| Environmental or physical attribute | Specification |
|---|---|
| Width | 8.5 in / 216 mm |
| Depth | 9.24 in / 235 mm |
| Height | 1.58 in / 40 mm |
| Weight | 4.6 lb / 2.1 kg |
| Operating temperature | 32 F to 104 F / 0 C to 40 C |
| Storage temperature | -13 F to 158 F / -25 C to 70 C |
| Operating humidity | 5% to 95% RH, non-condensing |
| Storage humidity | 0% to 95% RH, non-condensing |
| Operational altitude | 0 to 10,000 ft / 3048 m at 86 F / 30 C |
| Nonoperating altitude | Not specified |
| AC input voltage | 100 to 240 VAC |
| AC frequency | 50 to 60 Hz |
| Maximum measured power | 90 W with 4.5 W USB load |
| Maximum heat dissipation | 307.2 Btu/hr with 4.5 W USB load |
The sound power levels are specified by operating temperature:
| Temperature condition | Sound power |
|---|---|
| Normal, up to 25.6 C / 78.8 F | 29.5 bBA |
| Elevated, 26 C to 39 C / 79 F to 102 F | 37.4 dBA |
| High, 40 C to 49 C / 104 F to 122 F | 43.8 dBA |
| Maximum, 50 C and above / 122 F and above | 47.3 dBA |
The data sheet does not provide a Mean Time Between Failures value. MTBF should therefore not be used as a quantified proposal assumption for this appliance unless a separate approved reliability document supplies that figure.
The compact design is suitable for rack deployment using the CW9800L-RMNT tray. A dedicated shelf can accommodate two units within a single rack unit according to the platform description. Rack depth, airflow clearance, cable bend radius, power adapter placement, and access to the console and reset controls should be checked during installation planning.
Ordering and SKU matrix
| Type | Part number | Description | Best For |
|---|---|---|---|
| Controller | CW9800L | Cisco CW9800L Wireless Controller | Primary controller for small and medium wireless deployments |
| Redundant power kit | CW9800L-RPS= | Redundant power supply module, 8-pin to 6-pin DC cable, additional power supply, and power cord | Deployments requiring power path redundancy |
| Spare redundant power module | PWR-RPS-DC1= | Spare redundant power supply module; no power supply unit and no cables | Replacement inventory for an existing redundant power installation |
| RFID asset tag | CW9800L-RFID-1R | RFID asset tag | Inventory tracking and asset identification |
| Application hosting storage | CW-ACC-MEM-32G | Additional 32 GB storage for application hosting; must be ordered with the controller | Application hosting and container-based extensions |
| Rack mount tray | CW9800L-RMNT | Rack mount tray for the CW9800L | Rack installation of the controller |
| Rear rack bracket | CW9800L-RMNT-R | Rear rack mount bracket for the CW9800L-RMNT tray | Rear support for rack-mounted tray installations |
| Power adapter | C9800-AC-110W | Single-output 12 V DC, 110 W, 120/240 V AC adapter; shipped by default | Standard controller power connection |
The controller is available as a single base appliance SKU, CW9800L. The 32 GB application-hosting storage option is not field-addable after purchase, so it must be included when application hosting is part of the intended design.
Installation and presales sizing rules
Use the following rules when preparing a proposal or deployment plan:
- Size access point count and concurrent client count separately. The platform maximums are 500 access points and 10,000 clients.
- Validate the aggregate traffic model against the stated maximum throughput of 10 Gbps.
- Connect both SFP+ uplinks to the switching infrastructure and select 1G or 10G optics based on the network design.
- Confirm whether the deployment is centralized, FlexConnect-based, or SD-Access Wireless before defining tags, profiles, VLAN mappings, and routing.
- Include the redundant power kit where service continuity requirements justify it.
- Include CW-ACC-MEM-32G at order time if application hosting is required.
- Confirm IOS XE compatibility for the controller and selected SFP modules.
- Provide independent power circuits for redundant power paths where facility infrastructure permits.
- Validate rack tray, rear bracket, airflow, and external power adapter placement before installation.
- Plan secure management using SSH, HTTPS, SNMPv3, NETCONF, AAA, and out-of-band access as appropriate.
- Treat the maximum counts as platform ceilings, not automatic design targets.
- Confirm access point generation, feature requirements, and software interoperability for Wi-Fi 5 Wave 2, Wi-Fi 6, Wi-Fi 6E, and Wi-Fi 7 deployments.
Warranty and service considerations
The hardware warranty duration is one year. Cisco or its service center will use commercially reasonable efforts to ship a replacement part within ten working days after receiving an RMA request. Actual delivery time can vary by customer location.
Cisco reserves the right to refund the purchase price as its exclusive warranty remedy. Embedded software is subject to Cisco general terms, supplemental terms, or specific software warranty terms applicable to additional software products loaded on the device.
A presales proposal should distinguish the standard hardware warranty from any separately purchased support or service entitlement. The warranty statement does not itself define 24-hour support, on-site response, advance replacement beyond the stated procedure, software update rights, or long-term operational coverage. Those requirements should be addressed through the applicable service contract and customer support design.
The platform also has a Cisco Capital financing option for hardware, software, services, and complementary third-party equipment. Financing availability and terms should be evaluated separately from the technical bill of materials.