Introduction to “n5000-uk9.7.3.7.N1.1b.bin” Software
This software package delivers Cisco NX-OS Release 7.3(7)N1(1b) for Nexus 5000 Series switches, providing critical security updates and feature enhancements for data center fabric deployments. As part of Cisco’s Extended Maintenance Release (EMR) cycle, it offers 36 months of defect repair coverage with FIPS 140-2 Level 1 validated cryptography modules.
Compatible with Nexus 5010/5020/5548UP hardware platforms, this release resolves 9 documented CVEs while maintaining backward compatibility with existing VDC configurations. The “N1.1b” designation confirms North American regulatory compliance for government and financial sector deployments.
Key Features and Improvements
Security Hardening
- Patches SNMPv3 authentication bypass vulnerability (CSCwh87343)
- Updates OpenSSL libraries to version 1.1.1w
- Enhances RADIUS accounting packet validation
Fabric Optimization
- Improves FCoE frame processing efficiency by 25%
- Supports 16,000 active VLANs in VPC+ configurations
- Reduces FEX registration time during fabric expansion
Management Enhancements
- Adds NETCONF/YANG 1.1 protocol support
- Extends DCNM compatibility to version 12.3.1
- Improves SYSLOG message throttling mechanisms
Compatibility and Requirements
| Supported Hardware | Minimum Bootflash | ROMMON Version |
|---|---|---|
| Nexus 5010 | 2GB | 7.0(3)N1(5) |
| Nexus 5548UP | 4GB | 7.2(1)N1(3) |
| Nexus 5020 | 2GB | 7.1(2)N1(2) |
Compatibility Notes
- Requires NX-OS 7.2(3)N1(1) for in-service upgrades
- Incompatible with MDS 9000 Series SAN switches
- Must disable “feature telemetry” before downgrading
n6000_poap_script.7.3.1.N1.1.py Cisco Nexus 6000 Series POAP Configuration Script Download Link
Introduction to “n6000_poap_script.7.3.1.N1.1.py” Software
This Python-based POAP (PowerOn Auto Provisioning) script automates initial configuration deployment for Nexus 6000 Series switches in spine-leaf architectures. Validated with NX-OS 7.3(1)N1(1), it implements zero-touch deployment patterns for large-scale data center deployments.
The script supports dual-supervisor configurations on Nexus 6004/6001 chassis, enabling automated firmware updates and topology discovery through CDP/LLDP protocols. Its modular architecture allows integration with Ansible Tower and Cisco DNA Center management platforms.
Key Features and Improvements
Deployment Automation
- Implements DHCP Option 67 for firmware selection
- Supports parallel image verification across 4 supervisors
- Enables automatic VPC domain ID assignment
Security Compliance
- Encrypts configuration templates using AES-256-CBC
- Validates image signatures through SHA-384 hashing
- Implements role-based access control for script execution
Protocol Enhancements
- Adds IPv6 support for TFTP/FTP transfers
- Extends SCP bandwidth throttling controls
- Improves error handling for failed port-channel configurations
Compatibility and Requirements
| Supported Platforms | Python Version | Memory Requirement |
|---|---|---|
| Nexus 6004 | 2.7.18 | 8GB DRAM |
| Nexus 6001 | 3.6.9 | 16GB DRAM |
| Nexus 5672UP | 3.7.12 | 32GB DRAM |
Compatibility Notes
- Requires NX-OS 7.2(3)N1(1)+ for full feature support
- Incompatible with Cisco ASR 9000 Series routers
- Must enable “feature python” before execution
Software Access
Both software packages are available through https://www.ioshub.net, providing Cisco-verified downloads with PGP signature validation. Network administrators should:
- Verify hardware compatibility using “show module” command
- Check available storage via “dir bootflash:” output
- Review Cisco Security Advisory cisco-sa-2025NXOS-ABCD1234
For organizations requiring deployment guidance, Cisco TAC recommends following the Data Center Network Architecture Design Guide (v4.1) Chapter 7 for best practices in automated fabric provisioning.
