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Cisco Catalyst 9800 Series Wireless Controllers: High Availability SSO Deployment Guide

Explore the essential guide for deploying High Availability Stateful Switchover (SSO) on Cisco Catalyst 9800 Series Wireless Controllers. This document, focusing on Cisco IOS XE Amsterdam 17.2, provides comprehensive insights into configuration, connectivity options, and operational procedures to ensure robust network uptime and seamless failover.

Understanding High Availability SSO

Discover how High Availability SSO on Cisco Catalyst 9800 Wireless Controllers minimizes downtime by enabling stateful switchover of access points and clients. This feature ensures continuous operation during failures, maintaining network stability.

Key Features and Benefits

  • Seamless Failover: Maintain AP and client connectivity during active controller failures, preventing service disruptions.
  • Platform Support: Applicable to physical appliances (C9800-L, C9800-40, C9800-80) and virtual platforms (C9800-CL).
  • Configuration Flexibility: Options for GUI and CLI configuration, including support for Redundancy Management Interface (RMI) and default gateway checks for enhanced reliability.
  • Advanced Connectivity: Detailed explanations of physical connectivity options and supported topologies for HA SSO pairs.

Deployment and Management

Learn about the active and standby election processes, state transitions, and monitoring techniques for HA SSO pairs. The guide also covers switchover functionality, system and network fault handling, and upgrade/downgrade procedures.

For detailed configuration steps and best practices, refer to the official Cisco documentation.

Visit Cisco.com for more information.

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