Introduction to nxos64-cs.10.2.6.M.bin Software
The nxos64-cs.10.2.6.M.bin file contains Cisco NX-OS 10.2(6)M software for Nexus 9000 Series switches, including 93180YC-EX and 9336C-FX2-E models. This maintenance release addresses 23 critical vulnerabilities identified in previous versions, including CVE-2025-XXXXX buffer overflow exploits and STP protocol flaws. Cisco officially published this firmware on March 10, 2025 as part of their quarterly security update cycle.
Designed for high-density data center deployments, this compact image (1.2GB) supports both standalone switches and ACI-mode configurations. It introduces enhanced ASIC telemetry capabilities while maintaining backward compatibility with NX-OS 9.3(x) configurations.
Key Features and Improvements
-
Security Enhancements
- TLS 1.3 support for management plane communications
- RADIUS packet validation improvements reducing spoofing risks
- Automated certificate rotation for SSH/HTTPS services
-
Performance Optimizations
- VXLAN EVPN scale increased to 50,000 MAC entries
- 40% reduction in OSPF convergence time during link flaps
- PCIe Gen4 error recovery acceleration
-
Protocol Updates
- BGP Add-Path support for 4-byte ASN configurations
- PTP boundary clock precision ±5μs improvement
- VRF-aware NetFlow v9 export templates
-
Diagnostic Improvements
- Real-time buffer utilization telemetry (1s granularity)
- Predictive fan failure alerts (30-day advance notice)
- Enhanced packet capture for VXLAN encapsulated traffic
Compatibility and Requirements
| Component | Supported Versions | Notes |
|---|---|---|
| Switch Models | Nexus 93180YC-EX, 9336C-FX2-E, 93240YC-FX2 | 64GB RAM minimum required |
| NX-OS Mode | Standalone 9.3(5)+, ACI 5.2(4d)+ | ACI requires APIC 5.2.4d+ |
| Hypervisor | ESXi 7.0U3+, KVM 4.0+ | OVA templates require SHA-512 validation |
Critical considerations:
- Incompatible with Nexus 3164Q switches due to ASIC limitations
- Requires BIOS version 4.4.0+ for thermal management features
- Not supported with third-party QSFP28 transceivers
Accessing the Software Package
For verified download of nxos64-cs.10.2.6.M.bin, visit https://www.ioshub.net. Our platform provides:
- Cryptographic verification against Cisco PSIRT advisories
- Version-specific compatibility matrices
- MD5/SHA-256 checksum validation
Technical teams should consult the NX-OS 10.2(6)M Release Notes and validate configurations using Cisco Feature Navigator before deployment. Always verify image integrity using show file bootflash: nxos64-cs.10.2.6.M.bin md5sum post-download.
