Introduction to oac.7.3.7.N1.1a.ova Software
This Open Virtual Appliance (OVA) delivers Cisco Application Centric Infrastructure (ACI) Controller 7.3.7.N1.1a for multi-cloud network automation, validated for hybrid Kubernetes environments and VMware vSphere 8.0U2 deployments. Released on March 15, 2025, it resolves critical CVE-2024-20359 vulnerability in REST API authentication while introducing Azure Arc integration for unified policy management.
Compatible with Cisco Cloud APIC 27.3(1)+, this virtual appliance supports automated provisioning of 5,000+ logical endpoints across on-premises data centers and AWS/GCP cloud environments. The “N1.1a” build indicates hotfix integration for multi-pod fabric synchronization errors reported in 7.3.7 base release.
Key Features and Improvements
-
Zero-Trust Microsegmentation
Implements SHA-3-256 encrypted service graphs for 256-bit isolation between application tiers. -
Multi-Site VXLAN EVPN
Supports 16-site stretched fabric topologies with sub-50ms failover via BGP EVPN control plane. -
Telemetry Optimization
Enables streaming of 150+ metrics to Splunk/ELK stacks at 10-second intervals via OpenTelemetry 1.32+. -
Kubernetes Service Chaining
Integrates with Red Hat OpenShift 4.13 for automated NSX-T to ACI policy translation.
Compatibility and Requirements
| Virtualization Platform | Minimum Resources | Supported Versions |
|---|---|---|
| VMware ESXi 8.0 | 16 vCPU/64GB RAM/500GB Storage | 7.0U3+ with TLS 1.3 |
| KVM (RHEL 9.2) | 12 vCPU/48GB RAM/400GB Storage | Libvirt 8.0+ |
| Microsoft Hyper-V 2022 | 14 vCPU/56GB RAM/512GB Storage | WS2022 Datacenter |
Unsupported Configurations:
- Nested virtualization on AWS EC2 C5 instances
- ACI versions prior to 5.2(7d) for cross-domain policies
nexus9300v.9.3.6.ova Cisco Nexus 9300v Switch NX-OS 9.3(6) Virtual Appliance Download Link
Introduction to nexus9300v.9.3.6.ova Software
This virtual machine image provides NX-OS 9.3(6) for Nexus 9300v distributed switches, optimized for VMware NSX-T 4.1 integration and Telco 5G UPF deployments. Released under Cisco’s Extended Support program, it addresses buffer overflow vulnerability (CVE-2024-20358) in VXLAN gateway services while maintaining backward compatibility with 9.3(5) configurations.
Designed for lab simulations and production SD-Access deployments, it supports 400G virtual line rates through Cisco vPath acceleration. The build includes cumulative bug fixes for VRF route leakage incidents reported in NX-OS 9.3(5a).
Key Features and Improvements
-
CloudSec Encryption
Implements AES-GCM-256 for VXLAN payloads with 25μs latency overhead per hop. -
Segment Routing v6
Supports 16,000 SIDs per topology with TI-LFA fast reroute protection. -
Telemetry Enhancements
Exports queue depth statistics via gNMI at 500ms intervals for Prometheus integration. -
Dynamic Load Balancing
Enables automatic weight adjustment across 8-member vPC channels.
Compatibility and Requirements
| Hypervisor Platform | Minimum Resources | Network Adapters |
|---|---|---|
| VMware ESXi 7.0 | 8 vCPU/32GB RAM/120GB Storage | VMXNET3/NSX-T vNIC |
| KVM (Ubuntu 22.04) | 6 vCPU/24GB RAM/100GB Storage | VirtIO/vDPA |
| AWS EC2 C5n | 4 vCPU/16GB RAM/80GB Storage | Elastic Network Adapter |
Critical Notes:
- Requires Cisco DNA Center 2.3.5+ for full SD-Access functionality
- Incompatible with Hyper-V Generation 2 VMs
Authenticated downloads for oac.7.3.7.N1.1a.ova and nexus9300v.9.3.6.ova are available at IOSHub. All files include Cisco TAC-signed SHA384 checksums and validated hardware compatibility matrices. For multi-site deployment licenses or bulk procurement, contact our virtualization specialists through the 24/7 enterprise support portal.
