9800S

The 9800s are a family of centralized wireless network controllers developed by Cisco Systems. Introduced in 2015, the 9800 Series provides a scalable architecture for managing Cisco wireless access points and third‑party devices. Each controller combines hardware and software to enable secure connectivity, advanced analytics, and simplified policy enforcement across distributed radio environments.

Key capabilities of the 9800s include deep packet inspection, guest‑network isolation, and advanced threat protection integrated with Cisco Secure Access Orchestrator. The controllers support 802.11ac Wave 2 and 802.11ax (Wi‑Fi 6) standards, and are capable of handling multi‑tenancy through virtualization, allowing separate logical controllers within a single physical unit. Cisco classifies the lineup into the 9800–S, 9800–X, and 9800–U models, each optimized for scale and performance. The “S” type is designed for small‑to‑medium enterprises, the “X” for campus and large enterprise venues, and the “U” is an ultra‑thin, energy‑efficient edge controller.

Deployment configurations typically involve integrating the 9800 controller with a Cisco Identity Services Engine (ISE) for authentication, or with a software‑defined network (SD‑N) controller for unified management. The controllers support redundant power supplies and high‑availability clustering, ensuring continuous operation during hardware failures or network maintenance. Firmware updates deliver ongoing security patches and feature enhancements, managed through Cisco Prime Infrastructure or OTA mechanisms.

In practice, the 9800s are favored by organizations that require resilient wireless infrastructure, such as hospitals, universities, and high‑traffic retail sites. By centralizing policy, analytics, and security in a single device, the 9800 series helps reduce operational complexity and improve overall radio performance.