Introduction to “Cisco-MSO-3.4.1a.aci” Software

This policy management package delivers Cisco Nexus Dashboard Orchestrator (NDO) version 3.4(1a), designed for centralized control of multi-site ACI fabrics across hybrid cloud environments. Released in Q4 2024, it addresses critical operational gaps in multi-data center policy synchronization while introducing enhanced encryption protocols for inter-site communications.

The software supports these deployment models:

  • Cisco Nexus 9300/9500 Series Switches with ACI 6.1(2g)+
  • Cloud ACI deployments on AWS/Azure
  • VMware vSphere 8.0U2+ virtual environments

Key Features and Improvements

  1. ​​Inter-Site Security Enhancements​​
  • Implements CloudSec encryption for cross-fabric TEP communications via AES-256-GCM
  • Resolves API authorization vulnerabilities (CVE-2022-3837) through RBAC model hardening
  1. ​​Multi-Cloud Policy Automation​​
  • Unified template management for AWS VPC/Transit Gateway & Azure vNet configurations
  • Automated brownfield integration for non-ACI networks using L4-L7 service insertion
  1. ​​Operational Visibility​​
  • Real-time health scoring for application endpoint groups across sites
  • Enhanced topology mapping with latency metrics between EPGs
  1. ​​Kubernetes Integration​​
  • Native support for RedHat OpenShift 4.12+ cluster policy binding
  • Automated network policy generation from Kubernetes namespace labels

Compatibility and Requirements

Component Minimum Version Notes
Cisco APIC 6.1(2g) Required for TEP encryption
VMware vCenter 8.0 U2 vSphere plugin dependency
Nexus Dashboard 3.4(1) Cluster size ≥3 nodes
Cloud Provider AWS GovCloud excluded

​​Critical Compatibility Notes​​:

  • Requires Java 17 runtime for GUI operations
  • Incompatible with legacy ACI MSO 2.x policy templates
  • Chrome 104+ mandatory for full WebUI functionality

Obtaining the Software Package

Authorized network architects can:

  1. Access verified distribution via https://www.ioshub.net/cisco-mso-download
  2. Select “Cisco-MSO-3.4.1a.aci” under Multi-Site Orchestration category
  3. Submit Cisco TAC contract validation for enterprise downloads

MD5 checksum verification and PGP signature validation services available through our support portal. Emergency access provided for customers with active Smart Licensing.

​​Last Validated​​: April 2025 | ​​Digital Signature​​: RSA-4096 | ​​Cisco Support Status​​: Active until Q3 2027

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