Introduction to nxos.9.3.13.bin Software
nxos.9.3.13.bin is the primary firmware package for Cisco Nexus 3000 and 3500 series switches running NX-OS 9.3(13), released in Q4 2024 as a long-term support (LTS) version. This build focuses on enhancing VXLAN EVPN scalability while maintaining backward compatibility with Nexus 3048TP-1GE, 3524-XL, and 3548-XL hardware platforms.
The software enables enterprise-grade network automation through RESTCONF/YANG API integration and supports critical data center protocols including MLAG, PTPv2, and VXLAN BGP EVPN with up to 128,000 MAC entries per virtual device context (VDC). It serves as the foundation for hybrid cloud deployments requiring consistent policy enforcement across physical and virtual Nexus switches.
Key Features and Improvements
-
Enhanced Security Framework
- Addresses CVE-2024-33501 (CVSS 8.8) for CLI privilege escalation vulnerabilities
- Implements quantum-resistant SHA-384 hashing for firmware validation
-
Protocol Optimizations
- 40% reduction in VXLAN EVPN Type-2 route convergence time
- Resolves MAC flapping issues in multi-homed ESI configurations
-
Hardware Compatibility
- Adds support for QSFP-DD800 optics in Nexus 3548-25G switches
- Fixes FPGA recognition errors during cold upgrades from NX-OS 7.x
-
Telemetry Enhancements
- Native OpenTelemetry 1.3.0 integration for metric streaming
- 25% compression improvement in Prometheus data exports
Compatibility and Requirements
| Supported Hardware | Minimum Requirements | Unsupported Configurations |
|---|---|---|
| Nexus 3048TP-1GE | 8GB RAM, 4GB bootflash | NX-OS versions below 7.0(3)I7(6) |
| Nexus 3524-XL | BIOS 3.18+ | Mixed VDC environments |
| Nexus 3548-XL | vPC domain ID ≤ 1000 | Third-party QSFP28 transceivers |
| Nexus 93180YC-EX | APIC 6.0(3)+ | Standalone switch operation |
Critical Notes:
- Requires compact image format for devices with ≤16GB bootflash
- Incompatible with Smart Licensing using pre-9.3(10) policy engines
- VXLAN VNIs must not overlap with legacy VLAN IDs
Obtaining the Firmware Package
As a Cisco-certified distributor, IOSHub.net provides authenticated downloads of nxos.9.3.13.bin with SHA-512 verification (cbb63f…6df08). Two access options exist:
- Standard Download: Submit verification via our portal (24-48hr processing)
- Priority Service: Contact 24/7 engineers through our hotline ($5 verification fee)
Always validate the MD5 checksum (d31d5b556cc4d92f2ff2d83b5df7b943) post-download and reference Cisco’s NX-OS 9.3 Upgrade Guide for deployment best practices.
This documentation aligns with Cisco’s technical advisories (Document ID: 14243715) and field validation protocols. For environments requiring extended lifecycle support, consider upgrading to NX-OS 10.2(x) for enhanced AI-driven network analytics.
