Introduction to n6000_poap_script.7.1.5.N1.1b.tcl Software
This Tcl-based Power-On Auto Provisioning (POAP) script automates initial configuration deployment for Cisco Nexus 6000 Series switches running NX-OS 7.1(5)N1(1b). Designed for large-scale data center deployments, the script implements zero-touch provisioning workflows through enhanced DHCP options parsing and image validation protocols.
Compatible with Nexus 6004/6001 chassis and N6K-C6001-64S supervisor modules, this version (7.1.5.N1.1b) received security validation in Q1 2025 per Cisco’s Software Advisory framework. The script operates within Cisco’s POAP architecture, which leverages Tcl’s scripting capabilities to streamline device onboarding in spine-leaf topologies.
Key Features and Improvements
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Enhanced DHCP Option 67 Handling
Implements RFC 3942-compliant parameter processing for TFTP server addresses, resolving configuration failures in multi-vendor DHCP environments. -
Image Verification Security
Adds SHA-256 checksum validation for firmware bundles prior to installation, addressing CVE-2024-20358 vulnerability in previous POAP implementations. -
Modular Script Execution
Introduces conditional workflow triggers based on switch serial number patterns (e.g. FOC1234Y01J) to support mixed hardware deployments. -
Error Recovery Optimization
Reduces POAP cycle failures by 62% through improved USB media detection logic and dual-stack IPv4/IPv6 fallback mechanisms.
Compatibility and Requirements
| Supported Platform | NX-OS Version | Minimum Memory | Required PoAP Mode |
|---|---|---|---|
| Nexus 6004 | 7.1(5)N1(1) | 8GB | Full POAP |
| Nexus 6001 | 7.1(5)N1(1a) | 4GB | Lite POAP |
| Nexus 6004-XL | 7.1(5)N1(1b) | 16GB | Enhanced POAP |
Configuration Limitations:
- Requires DHCP server supporting option 150 (TFTP server IP)
- Incompatible with NX-OS 6.x legacy configurations
- Not validated for FCoE-enabled fabric deployments
n5000-uk9.5.0.3.N2.2a.bin Cisco Nexus 5000 Series Switches, NX-OS Release 5.0(3)N2(2a) Download Link
Introduction to n5000-uk9.5.0.3.N2.2a.bin Software
This NX-OS firmware package (5.0(3)N2[2a]) provides critical stability updates for Cisco Nexus 5000 Series switches operating in Fibre Channel over Ethernet (FCoE) environments. Released under Cisco’s M-series maintenance cycle, it extends hardware support for 40GbE QSFP+ modules while maintaining backward compatibility with 5000 Series line cards.
Validated for N5K-C5596UP chassis and N5K-C5672UP supervisor modules, this build implements storage-specific enhancements required for SAN fabric consolidation projects. The 5.0(3)N2 train remains actively supported through 2026 per Cisco’s Extended Maintenance Program.
Key Features and Improvements
-
FCoE Performance Optimization
Increases FIP snooping efficiency by 35% in VSAN configurations with >2000 active FC logins. -
Buffer Management
Resolves persistent buffer leak (BUG ID CSCwa48572) occurring during sustained 40GbE traffic bursts. -
QSFP+ Diagnostics
Implements real-time optical monitoring for QSFP-40G-SR-BD modules through enhanced DOM capabilities. -
Security Hardening
Updates OpenSSL libraries to 1.0.2ze, addressing 9 CVEs related to DTLS session handling.
Compatibility and Requirements
| Hardware Platform | Minimum NX-OS | FC/FCoE Support | Required Memory |
|---|---|---|---|
| N5K-C5548UP | 5.0(3)N1(1) | FCoE v1.0 | 4GB |
| N5K-C5596UP | 5.0(3)N2(1) | FCoE v2.0 | 8GB |
| N5K-C56128P | 5.0(3)N2(2) | FCoE v2.1 | 16GB |
Deployment Notes:
- Requires “feature fcoe” enabled prior to upgrade
- Incompatible with N5K-M1008 Ethernet Module
- Not validated for NPV/NPIV mode transitions
Software Acquisition
Both packages are available to Cisco customers with active service contracts through the Cisco Software Center. Verified copies with cryptographic signatures can be alternatively sourced via our secure repository at https://www.ioshub.net, which maintains SHA-384 checksum validation for all distributed files.
