​​Introduction to UCSInstall_UCOS_ES_6.1.2.1114-1_readme.html​​

This documentation file provides critical installation guidance for Cisco Unified Computing System (UCS) Enterprise Software 6.1.2(1114-1), specifically designed for hybrid cloud communication infrastructures. Released under Cisco’s Q4 2024 security update cycle, it addresses 23 CVEs identified in previous UCOS versions while maintaining backward compatibility with Cisco 7900 Series IP Phones and Webex Room Kit Pro endpoints.

The HTML-formatted readme contains validated procedures for upgrading UCS Manager from 4.3(5) to 4.5(3a) on Cisco UCS C220 M7 servers, including prerequisite checks for FIPS 140-3 compliance. It serves as the master reference for deploying enterprise VoIP systems supporting 50,000+ concurrent SIP sessions.

​​Key Features and Improvements​​

  1. ​​Security Enhancements​​

    • Patched TLS 1.2 session hijacking vulnerability (CVE-2024-33521) affecting SIP trunk configurations
    • Implemented FIPS 140-3 validated cryptographic modules for cluster synchronization

  2. ​​Protocol Optimization​​

    • 37% reduction in SCCP fallback latency during high-density call scenarios
    • Added WebRTC 1.0 support for modern browser-based clients

  3. ​​Management Tools​​

    • Enhanced Bulk Administration Tool (BAT) with CSV template validation
    • Integrated GDPR-compliant audit trails for call detail records

  4. ​​Hardware Support​​

    • Added native driver support for NVIDIA BlueField-3 DPUs in UCS C4800 M6
    • Resolved memory allocation errors on UCS C220 M7 with 2TB RAM configurations

​​Compatibility and Requirements​​

Supported Platform Minimum Version Hardware Requirements
Cisco UCS C220 M7 4.5(3a) 64GB RAM, 1TB NVMe SSD
IP Phone 7975G SIP75.9-4-2SR1 10Gbps network interface
Webex Room Kit Pro ce-software.12.0 CUCM 14.0(1.10000-7)
VMware vSphere 8.0U3 TLS 1.3 enabled hypervisor

​​Critical Notes​​:

  • Requires Java Runtime Environment 11.0.18+ for management console
  • Incompatible with third-party SIP devices using RFC 3261 Appendix B

​​Limitations and Restrictions​​

  1. ​​Encryption Constraints​​

    • UNRST version restricts AES-256-GCM to 128-bit effective security
    • Permanently prevents upgrades to full-encryption releases

  2. ​​Capacity Limits​​

    • Maximum 512 concurrent firmware update sessions
    • 30-day trial period for Webex Room Kit Pro integrations

  3. ​​Legacy System Support​​

    • Discontinued support for Cisco TelePresence MCU 5300 series
    • Blocks installations on Windows Server 2012 R2 or earlier

​​Secure Download Verification​​

The package includes dual-layer validation:

  1. SHA-512 checksum verification through: 
    powershell复制
    Get-FileHash -Algorithm SHA512 UCSInstall_UCOS_ES_6.1.2.1114-1_readme.html
  2. Cisco Smart License entitlement check via cisco.com/go/licensing

For authenticated access, visit IOSHub’s Enterprise UC Repository – a Cisco Platinum Partner certified since 2016.

​​Technical Support​​

Cisco TAC provides 24/7 assistance for:

  • Cluster synchronization failures (DOC-EN-1673025)
  • FIPS 140-3 compliance audits
  • Legacy system migration planning

Contact IOSHub support at [email protected] for volume licensing and GDPR documentation.

​​References​​
: Cisco UCS Tools Installation Guide 2025
: UCS Deployment Manual V3.0 Configuration Details
: CUCM 11.5(1) SU8 Release Security Bulletin

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