Introduction to nxos64-cs.10.3.5.M.bin Software
This firmware delivers Cisco NX-OS 10.3(5)M – a maintenance release for Nexus 9300-FX3/EX/TX series switches operating in ACI fabric mode. Certified for hybrid cloud deployments requiring FIPS 140-3 Level 2 compliance, this build introduces hardware-accelerated VXLAN routing optimizations while resolving critical TLS session vulnerabilities documented in Cisco Security Advisory 2025-3011.
Compatible with Nexus 9300-EX/FX2/FX3 platforms running NX-OS 10.2(1)+, it became generally available through Cisco’s restricted distribution channels on March 15, 2025. The update specifically targets enterprises implementing AI/ML workloads with RoCEv2 protocol requirements.
Key Features and Improvements
-
Quantum-Safe Encryption
Implements CRYSTALS-Dilithium algorithms for SSHv2 control-plane communications, addressing CVE-2025-2884 vulnerability in legacy PKI infrastructures. -
AI Workload Optimization
- 38% reduction in RoCEv2 packet processing latency through ASIC-level flow prioritization
- Enhanced PFC/ECN integration for lossless 400G fabric backbones
-
Multi-Cloud Security
- Hardware-enforced microsegmentation via Cisco Hypershield technology
- Automated vulnerability patching for VXLAN EVPN tunnels
-
Diagnostic Enhancements
- Real-time SER monitoring for DDR5 memory controllers
- OpenTelemetry 2.0 integration for predictive failure analysis
Compatibility and Requirements
| Supported Platforms | Minimum Resources | Switch Compatibility | Unsupported Models |
|---|---|---|---|
| Nexus 9300-FX3 | 64GB RAM | N9K-C93180YC-FX3 | Nexus 9508 |
| Nexus 93128TX | 128GB RAM | N9K-C9336C-FX2 | Nexus 3172PQ |
| Cloud APIC | 16 vCPU | N9K-C9272Q | – |
Critical Notes:
- Requires NX-API REST SDK 4.1+ for automation workflows
- Incompatible with Prime Infrastructure versions below 4.3(2)
Secure Distribution
Network administrators can obtain nxos64-cs.10.3.5.M.bin through validated channels at https://www.ioshub.net after Smart Net Total Care entitlement verification. The platform provides SHA3-512 checksum validation and quantum-resistant encrypted downloads via CRYSTALS-Kyber algorithms.
For enterprises with active Cisco SWSS contracts, direct access is available through Cisco Software Manager using ServiceNow integration (SRM Case ID: N9K-1035M-SW).
nexus9300v64.10.3.2.F.qcow2 Cisco Nexus 9300v Virtual Switch 10.3(2)F Download Link
Introduction to nexus9300v64.10.3.2.F.qcow2
This QCOW2 image provides the virtualized instance of Cisco Nexus 9300 series switches, specifically designed for hybrid cloud simulations and CI/CD pipeline testing. Released under Cisco’s DevNet program in Q1 2025, it replicates the full NX-OS 10.3(2)F feature set with hardware-accurate performance modeling for:
- VXLAN EVPN multi-site architectures
- ACI fabric policy simulations
- RoCEv2 congestion control testing
Core Enhancements
-
Cloud-Native Performance
- 90% packet forwarding accuracy compared to physical 93180YC-FX3 hardware
- Support for Kubernetes CNI plugins (Calico/Flannel)
-
Security Validation
- Embedded Cisco Hypershield sandbox environment
- Automated CVE scanning for virtual port configurations
-
Development Tools
- Python API for Terraform infrastructure-as-code workflows
- Pre-built Ansible playbooks for ACI fabric deployment
Virtualization Requirements
| Hypervisor | Minimum Resources | Supported Features |
|---|---|---|
| VMware ESXi 8.0 U2+ | 16 vCPU | SR-IOV Networking |
| KVM/qemu 6.2+ | 64GB RAM | NUMA Optimization |
| Hyper-V 2025 | 100GB Storage | GPU Passthrough |
Implementation Advisory:
- Requires Intel VT-d/AMD-Vi enabled for hardware acceleration
- Incompatible with nested virtualization configurations
Access Authorization
This virtual switch image is available through Cisco’s DevNet portal with valid CCO credentials. Verified partners can request evaluation licenses via TAC Case Manager (Reference: VN9K-1032F-DEV).
Both packages require active Cisco service contracts for production deployment. Always validate cryptographic signatures against Cisco Security Advisories before implementation.
