Introduction to nxos64-msll.10.3.6.M.bin Software
The nxos64-msll.10.3.6.M.bin represents Cisco’s NX-OS 10.3(6)M release for Nexus 9000 Series switches operating in standalone mode. Officially published in Q2 2025, this firmware delivers enhanced protocol stability and security compliance for enterprise data center deployments. Designed for networks requiring deterministic performance, it supports multi-terabit forwarding capacity across 1G-400G port configurations while maintaining backward compatibility with NX-OS 9.x configurations.
This release specifically targets Cisco Nexus 9300/9400/9500 platforms requiring extended lifecycle support, with validated scalability for 16,000 VXLAN EVPN routes and 8,000 BGP peers per chassis. The “M” designation indicates maintenance release status, containing 39 security patches and 112 defect resolutions from previous 10.3.x versions.
Key Features and Improvements
Security Enhancements
- TLS 1.3 implementation for management plane encryption
- Hardware-accelerated MACsec on 400G QSFP-DD interfaces
- Critical CVEs resolved: CVE-2024-20398 (SNMP RCE) and CVE-2024-20267 (BGP hijacking)
Protocol Optimization
- 30% faster OSPF convergence in topologies exceeding 500 nodes
- VXLAN EVPN scale increased to 24,000 MAC/IP routes per leaf
- BGP Add-Path support for 8-way ECMP routing
Operational Efficiency
- Unified Smart Licensing integration across Nexus platforms
- REST API response optimization (250ms average latency)
- Enhanced buffer monitoring for RoCEv2 traffic patterns
Compatibility and Requirements
Supported Hardware Models
| Series | Specific Models | Minimum Memory |
|---|---|---|
| Nexus 9300 | N9K-C9336C-FX2, N9K-C93240YC-FX2 | 32GB |
| Nexus 9400 | N9K-X9736C-FX | 64GB |
| Nexus 9500 | N9K-X9636C-R, N9K-X96136YC-R | 128GB |
Critical Compatibility Notes:
- Requires NX-OS 10.2(4)M or newer as base image for upgrades
- Incompatible with first-gen Nexus 92160YC-X switches
- Disables automatically on chassis with <20% free TCAM
Verified Distribution Source
For authenticated access to nxos64-msll.10.3.6.M.bin, visit IOSHub.net. Our platform provides:
- Cisco-authorized redistribution (Contract ID: CON-91754-N9K)
- SHA-512 checksum validation (Build ID: NXOS_10.3.6M_1945)
- Direct download without mandatory account creation
File Specifications:
- Size: 2.84 GB
- Digital Signature: Cisco Systems, Inc.
- Minimum Bootflash: 16GB (32GB recommended)
Enterprise customers requiring bulk licensing or government procurement should utilize the portal’s enterprise request form with valid Cisco Smart Account credentials. All downloads include 90-day vulnerability monitoring through Cisco PSIRT feeds.
