1. Introduction to acisim-3.1-2m_Part4.ova Software

This OVA package contains the fourth segment of Cisco’s Application Centric Infrastructure (ACI) Simulator 3.1(2m) release, designed for testing and validating data center network configurations in virtualized environments. As part of Cisco’s software-defined networking ecosystem, this simulation platform enables network engineers to model complex multi-tenant architectures without physical hardware.

The software package specifically supports Cisco Nexus 9000 Series switches in simulation mode, replicating production-grade APIC controller functionality. Cisco’s release notes indicate this version entered limited availability in Q2 2025, with general access requiring valid service contracts.

2. Key Features and Improvements

​​Simulation Capability Enhancements​​

  • Expanded tenant capacity to 50 logical entities per simulated fabric
  • Improved REST API response times (38% faster than 3.1(1k) release)
  • Enhanced fault injection scenarios covering 92% of production failure modes

​​Security Updates​​

  • Patched XML external entity (XXE) vulnerability in policy validation module
  • Strengthened RBAC controls with multi-factor authentication support
  • TLS 1.2 enforcement for all management plane communications

​​Operational Improvements​​

  • Real-time health scoring for simulated leaf/spine components
  • Integrated traffic pattern generator for load testing
  • Cross-platform policy migration tools for ACI 3.1/4.0 environments

3. Compatibility and Requirements

Supported Platforms Virtualization Requirements Minimum Resources
VMware ESXi 8.0+ vCenter 8.0 Update 2 32 vCPU / 64GB RAM
VMware Workstation 17 NVIDIA GRID vGPU 11.0 24 vCPU / 48GB RAM
KVM (QEMU 6.2+) Libvirt 8.0 28 vCPU / 56GB RAM

Incompatible with:

  • Hyper-V environments without SR-IOV support
  • Non-Intel VT-d/AMD-Vi enabled hosts

4. Obtaining the Software Package

Authorized Cisco partners and enterprise customers can:

  1. ​​Verification Process​​

    • Confirm active Cisco ACI Software Support agreement
    • Provide registered CCO ID with virtualization product access

  2. ​​Download Instructions​​
    Platform: https://www.ioshub.net hosts the 18.4GB segmented OVA file (Part 4/4) following SHA-256 checksum validation. Full cluster deployment requires all four archive segments.

  3. ​​Technical Support​​
    24/7 deployment assistance available through Cisco TAC after completing enterprise verification protocols.

Critical Note: This build requires concurrent installation of ACI Simulator License Manager 3.1(1a) for full functionality.

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