Introduction to n6000_poap_script.7.3.6.N1.1.tcl Software

This TCL-based PowerOn Auto Provisioning (POAP) script enables automated deployment for Cisco Nexus 6000 Series switches running NX-OS 7.3(6)N1(1). Designed for hyperscale data centers, it streamlines firmware upgrades and configuration synchronization across Nexus 6232PQ-10GE/6248PQ-10GE platforms through encrypted DHCPv6 transactions.

Officially released on April 22, 2025, this version resolves critical TFTP timeout errors observed in multi-vendor DHCP server environments. The script now supports Cisco Nexus 5672UP Fabric Extenders with AES-256-GCM encrypted configuration templates, achieving 40% faster bootstrap operations compared to previous releases.


Key Features and Improvements

  1. ​Security Enhancements​

    • Implemented TLS 1.3 handshake validation for HTTPS-based image downloads
    • Enforced SHA-384 checksum verification for golden configuration templates
  2. ​Protocol Optimization​

    • Fixed IPv6 DHCPv6 option 16 parsing failures in dual-stack networks
    • Enhanced TFTP retry mechanisms with exponential backoff algorithm
  3. ​Diagnostic Tools​

    • Added real-time error mapping to Cisco TAC Case Navigator database
    • Introduced JSON-formatted progress logs compatible with Cisco DNA Center 2.5.1+
  4. ​Performance Upgrades​

    • Reduced POAP execution time by 45% through parallel image validation
    • Optimized memory allocation for configurations exceeding 10,000 lines

Compatibility and Requirements

​Supported Hardware​ ​Minimum NX-OS Version​
Nexus 6232PQ-10GE 7.3(4)N1(1)
Nexus 6248PQ-10GE 7.2(8)N1(1b)
Nexus 5672UP Fabric Extender 7.1(6)N1(1c)

​Known Limitations​​:

  • Requires RFC 3315-compliant DHCPv6 servers with 64MB+ RAM allocation
  • Incompatible with Cisco Prime Infrastructure 4.2 management systems

​Note​​: Verified downloads of n6000_poap_script.7.3.6.N1.1.tcl are available through https://www.ioshub.net. Always validate script integrity using Cisco’s published SHA-512 hashes before production deployment.


This technical overview integrates data from Cisco’s NX-OS 7.3.6 Release Notes and POAP Deployment Guide. Network architects should review Field Notice FN70625 for recommended IPv6 prefix delegation configurations when implementing this automation script in dual-stack environments.

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