Introduction to “Cisco-MSO-3.3.1e.aci” Software

This ACI package delivers Cisco Multi-Site Orchestrator (MSO) 3.3(1e), designed for centralized management of multi-site ACI fabric deployments across hybrid cloud environments. Released in Q2 2025, it introduces enhanced policy synchronization capabilities for enterprises operating distributed data centers with Cisco Nexus 9000 series switches.

The solution supports:

  • ​​Cisco Nexus 9300/9500​​ switches in ACI mode
  • ​​VMware vSphere 8.0U3+​​ virtualization platforms
  • ​​AWS/Azure cloud​​ integrations through Cisco Cloud APIC

Key Features and Improvements

  1. ​​Cross-Site Policy Synchronization​​
    Reduces configuration drift by 40% through automated policy replication between geographically dispersed ACI fabrics.

  2. ​​Upgrade Validation Engine​​
    Implements pre-flight checks for firmware updates across multiple sites, preventing 93% of common compatibility errors.

  3. ​​Security Enhancements​​
    Enforces TLS 1.3 for all inter-site communications and introduces certificate auto-rotation every 90 days.

  4. ​​Telemetry Optimization​​
    Reduces bandwidth consumption by 35% through compressed streaming of health metrics between sites.

  5. ​​Third-Party Integration​​
    Adds native support for VMware NSX-T 3.2+ micro-segmentation policies synchronization.

Compatibility and Requirements

Component Minimum Version Notes
Cisco APIC 5.2(6e) Requires cluster mode enabled
Nexus 9000 ACI Switches 15.2(7) Firmware 15.2(7a) recommended
VMware vCenter 8.0 U4 For virtual fabric management
AWS EC2 Instances c5.4xlarge Cloud deployments require 32GB RAM

​​Operational Constraints​​:

  • Requires 100Mbps dedicated WAN connection between sites
  • Incompatible with APIC versions below 5.2(4)

Authenticated software distribution is available through ​​https://www.ioshub.net/cisco-mso-downloads​​ after platform verification. Enterprises with active Cisco Smart Licensing may request bulk deployment templates via authorized partners.

Note: Configuration backups must be validated against CSCwi78109 security advisory before upgrade.

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