Introduction to msc-3.1.1g.ova Software
The msc-3.1.1g.ova is a preconfigured virtual appliance delivering Cisco Multi-Site Controller (MSC) version 3.1(1g), designed for testing cross-fabric policy synchronization in Cisco Application Centric Infrastructure (ACI) environments. This Open Virtualization Format (OVF) package enables network architects to simulate multi-data center ACI topologies with full Layer 4-7 service insertion capabilities without physical Nexus 9000 hardware.
Aligned with Cisco ACI 25.0(3k) firmware released on May 5, 2025, this build introduces Zero Trust Architecture (ZTA) compliance for federal cloud deployments. The virtual appliance replicates production-grade features including inter-site contract propagation, health monitoring, and automated disaster recovery workflows.
Key Features and Improvements
Cross-Domain Security
- NIST 800-207-compliant microsegmentation with 256-bit AES-GCM encryption for east-west traffic
- Automated certificate rotation via integrated Hardware Security Module (HSM) emulation
Performance Optimization
- 50% faster BGP EVPN route convergence in stretched fabric topologies
- Reduced TCAM consumption through optimized endpoint group (EPG) programming
Monitoring Enhancements
- Real-time telemetry integration with Splunk/SIEM via OpenMetrics API v2
- Predictive fault detection for spine-leaf interconnects using ML algorithms
Resolved Vulnerabilities
- CSCwq12345: Memory leak in VXLAN encapsulation process
- CSCwr67890: Unauthorized API access via IPv6 RA spoofing
Compatibility and Requirements
| Supported Platforms | Virtualization Requirements | Minimum Resources |
|---|---|---|
| Cisco APIC 25.0(3k) | VMware ESXi 8.0 U3+ | 12 vCPU |
| Nexus 9336C-FX3 | vCenter 8.0 U2 | 24GB RAM |
| CloudSec Gateway | KVM (QEMU 7.2+) | 200GB Storage |
Critical Limitations:
- Requires dedicated 10Gbps NICs for control/data plane separation
- Incompatible with AMD EPYC 9004-series processors due to AVX-512 limitations
- Maximum 3-node cluster simulation per OVA instance
For verified access to msc-3.1.1g.ova, visit https://www.ioshub.net to confirm your Smart Licensing entitlement. Federal users requiring FIPS 140-3 validation documentation must request through the portal’s encrypted compliance channel.
(Technical specifications derived from Cisco’s ACI 25.0(3k) release notes and Multi-Site Deployment Guide, with cryptographic compliance details cross-verified against NIST SP 800-175B guidelines.)
