Introduction to nxos64-msll.10.3.5.M.bin Software
The nxos64-msll.10.3.5.M.bin file delivers Cisco NX-OS 10.3(5)M software for Nexus 9500-R Series modular switches, including N9K-X97160YC-EX and N9K-X9736C-FX2-E line cards. This maintenance release addresses 19 critical vulnerabilities identified in CVE-2025 advisories, including BGP session hijacking risks and VXLAN header validation flaws. Cisco officially published this firmware on March 25, 2025 as part of its quarterly security maintenance cycle.
Designed for hyperscale data center deployments, this 2.1GB image supports both standalone configurations and ACI-mode operations with APIC 6.2(3d) controllers. It introduces hardware-accelerated telemetry capabilities while maintaining backward compatibility with NX-OS 9.3(x) configurations.
Key Features and Improvements
-
Security Enhancements
- TLS 1.3 implementation for control plane communications
- ASIC-level VXLAN header validation preventing packet injection
- Automated certificate rotation for NETCONF/YANG 1.1 sessions
-
Hardware Optimization
- PCIe Gen4 error recovery acceleration (38% faster than 10.2.x)
- Predictive fan failure detection with 45-day advance alerts
- Enhanced thermal management for 45°C+ operating environments
-
Protocol Support
- EVPN Type-5 route scale increased to 80,000 entries
- Precision Time Protocol (PTP) boundary clock accuracy ±0.5μs improvement
- Multi-chassis LACP load balancing with 8-way ECMP support
-
Diagnostic Tools
- Real-time buffer utilization monitoring (100ms granularity)
- Cross-stack traceability for multicast forwarding paths
- Integrated packet capture for VXLAN-over-FabricPath traffic
Compatibility and Requirements
| Component | Supported Versions | Notes |
|---|---|---|
| Chassis Models | Nexus 9504-R, 9508-R | Requires N9K-C9504-FM-R2 supervisor |
| Line Cards | N9K-X97160YC-EX, N9K-X9736C-FX2-E | 64GB RAM minimum per line card |
| NX-OS Mode | Standalone 9.3(7)+, ACI 6.0(3c)+ | ACI requires APIC 6.2(3d) |
Critical considerations:
- Incompatible with Nexus 3164Q line cards due to ASIC limitations
- Requires BIOS 4.6.0+ for advanced thermal controls
- Third-party QSFP28 transceivers may cause CRC errors
nxos64.10.1.2.bin Cisco Nexus 9000v Series NX-OS 10.1.2 Software Download Link
Introduction to nxos64.10.1.2.bin Software
The nxos64.10.1.2.bin file provides Cisco NX-OS 10.1(2) software for Nexus 9000v virtual switches, supporting VMware ESXi 7.0U3+ and KVM 4.2+ hypervisors. As the inaugural release of NX-OS 10.x series, this version introduces Linux kernel 4.19 base architecture while maintaining feature parity with physical Nexus 9300 switches.
Officially released on February 15, 2025, this 1.8GB image enables:
- Simultaneous management of 64 virtual interfaces
- Cross-hypervisor live migration capabilities
- Integration with Ansible 8.2 and Terraform 1.5
Key Features and Improvements
-
Virtualization Enhancements
- vSphere vMotion compatibility with preserved session states
- Dynamic vCPU allocation (4-16 cores adjustable during runtime)
- VM snapshot-aware configuration archiving
-
Network Automation
- Pre-installed YANG 1.1 data models for 93% API coverage
- Zero-touch provisioning via DHCP option 43
- Python 3.9 runtime with NX-OS SDK extensions
-
Security Framework
- TPM 2.0 attestation for VM integrity verification
- Automated CVE patching through Cisco Smart Licensing
- Role-based access control (RBAC) with Azure AD integration
-
Protocol Support
- VXLAN EVPN scale increased to 32,000 MAC entries
- BGP Add-Path support for 4-byte ASN configurations
- PTP grandmaster clock accuracy ±2μs improvement
Compatibility and Requirements
| Component | Supported Versions | Notes |
|---|---|---|
| Hypervisors | ESXi 7.0U3+, KVM 4.2+, Hyper-V 2022 | 16GB vRAM minimum |
| Management | vCenter 8.0U1+, Red Hat Virtualization 4.3+ | Requires VM hardware v19 |
| Storage | Thin provisioned disks ≥80GB | Thick provisioning recommended for production |
Critical considerations:
- Incompatible with VMware ESXi 6.7 and earlier
- Requires Intel VT-x/AMD-V virtualization extensions
- Not supported on AWS EC2 bare metal instances
Both software packages are available for verified download at https://www.ioshub.net with SHA-512 checksum validation and Cisco PSIRT advisory cross-referencing. System administrators should consult the respective [NX-OS 10.3(5)M] and [NX-OS 10.1(2)] release notes before deployment.
