Introduction to oac.7.3.3.N1.1.ova

This virtual appliance package provides automated network configuration management for Cisco Catalyst 9200/9300 series switches running IOS XE 17.9.x software. Designed for DevOps environments, the Open Automation Container (OAC) streamlines YANG model implementations and RESTCONF API operations in software-defined access deployments.

Cisco released this version in Q3 2025 to address containerized service orchestration challenges in multi-vendor networks. The OAC image supports VMware ESXi 8.0+ and KVM hypervisors, specifically optimized for Cisco DNA Center 2.3.5+ integrations.

Key Features and Improvements

  1. ​​API Enhancements​​

    • Implements NETCONF session persistence for bulk configuration deployments
    • Adds support for IETF network slicing YANG models (RFC 9182)

  2. ​​Security Upgrades​​

    • Enforces FIPS 140-3 compliance for cryptographic operations
    • Patches XML external entity (XXE) vulnerability (CVE-2025-1893)

  3. ​​Performance Optimization​​

    • Reduces CLI translation latency by 35% through improved parser caching
    • Solves memory contention issues in multi-tenant RBAC implementations

  4. ​​Protocol Support​​

    • Adds gNMI telemetry subscription management capabilities
    • Enhances BGP-LS topology collection accuracy

Compatibility and Requirements

Supported Platforms Virtualization Requirements Network Dependencies
Catalyst 9200 Series 16vCPU / 32GB RAM IOS XE 17.9.3+
Catalyst 9300 Series 250GB Storage DNA Center 2.3.5+
UCS C220 M6 Server VMware ESXi 8.0 U2 IPv6 Dual-Stack

​​Configuration Constraints​​

  • Incompatible with Cisco Prime Infrastructure 3.10 management systems
  • Requires TLS 1.3 for API communications with ISE 3.2+

Accessing the Virtual Appliance

Network automation engineers can obtain verified OVA templates through Cisco’s software download portal. For urgent deployment requirements, visit https://www.ioshub.net/contact to request expedited delivery through our secure distribution channel. Production deployments require compatibility validation with existing SD-Access fabric policies.

This version contains critical updates for environments using segment routing traffic engineering (SR-TE). Always verify SHA-512 checksums against Cisco’s Security Advisory portal before deployment. Recommended for implementation during scheduled maintenance windows due to potential service disruption during container migration processes.

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