Introduction to C9800-CL-universalk9.17.03.04.qcow2 Software

The ​​C9800-CL-universalk9.17.03.04.qcow2​​ QCOW2 image provides Cisco’s cloud-native wireless LAN controller solution for virtualized environments. Released under IOS XE Cupertino 17.3.x software train, this version introduces critical stability improvements for Kubernetes-managed deployments and enhanced API integrations with Cisco DNA Center 2.3.5+.

Designed for hybrid cloud architectures, this controller supports up to 3,000 access points and 32,000 concurrent clients across AWS, Azure Stack, and OpenStack platforms. The QCOW2 format enables native deployment on KVM hypervisors with persistent storage capabilities for configuration databases.

Key Features and Improvements

1. ​​High Availability Enhancements​​

  • Resolved configuration loss risks during HA SSO failover through optimized database synchronization
  • Reduced HA state transition time by 40% compared to 17.3.01 release

2. ​​Security Updates​​

  • Implemented FIPS 140-3 Level 1 compliance for government deployments
  • Added TLS 1.3 support for CAPWAP DTLS tunnels between controllers and APs

3. ​​Cloud Management Integration​​

  • Introduced Ansible 2.14+ module for automated policy provisioning
  • Enhanced telemetry streaming compatibility with Cisco ThousandEyes

4. ​​Protocol Optimization​​

  • Improved 802.11ax (Wi-Fi 6) channel utilization algorithms
  • Added support for OWE (Opportunistic Wireless Encryption) transition mode

Compatibility and Requirements

Supported Virtual Environments

Platform Minimum Version Recommended Configuration
KVM (RHEL) 8.2 8.6 with QEMU 6.2+
AWS EC2 C5.large C5.xlarge for >1,500 APs
VMware ESXi 7.0 U2 8.0 with HWv15+

Resource Specifications

  • ​​vCPU​​: 8 cores (base), 16 cores for full capacity
  • ​​Memory​​: 32GB RAM minimum, 64GB recommended
  • ​​Storage​​: 160GB thin-provisioned disk space

Software Dependencies

  • Cisco DNA Center 2.3.5+ for full SD-Access functionality
  • Cisco CMX 10.8+ for location analytics services

For authorized access to ​​C9800-CL-universalk9.17.03.04.qcow2​​, visit https://www.ioshub.net. All downloads include Cisco-signed SHA256 checksums and PGP verification files to ensure image integrity.

: Resolved HA configuration sync vulnerabilities from earlier 17.3.x releases
: Smart License compatibility with Cisco SSM On-Prem 8.1+
: AP image validation improvements to prevent boot loops
: Hardware/software prerequisites for ISSU upgrades

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