1. Introduction to Bootable_UCSInstall_CUP_UNRST_15.0.1.10000-10.sha512.iso

This SHA512-verified bootable ISO provides the installation package for Cisco Unified Presence (CUP) version 15.0.1, designed for enterprises deploying collaboration systems in regions with encryption export restrictions. Released under Cisco’s Q2 2025 software refresh cycle, the UNRST (Unrestricted) variant complies with international trade regulations while maintaining core functionality for presence services.

Key specifications:

  • ​​Export Compliance​​: Operates under US Export Administration Regulations (EAR) Category 5 Part 2 exemptions
  • ​​Bootable Deployment​​: Supports fresh installations on UCS C-Series M7 hardware
  • ​​Cryptographic Limitations​​: Excludes FIPS 140-3 validated modules per export restrictions

2. Key Features and Improvements

​​Core Functionality​​

  • ​​Multi-Cluster Presence​​: Supports 50,000+ concurrent user sessions in distributed environments
  • ​​Hybrid Calendar Integration​​: Synchronizes with Microsoft 365/Google Workspace via OAuth 2.1
  • ​​Resource Optimization​​: 35% reduction in RAM utilization compared to v14.x deployments

​​Security Enhancements​​

  • TLS 1.3 enforcement for all XMPP connections
  • Patched CVE-2025-11901 (XSS vulnerability in presence status UI)
  • Hardware-rooted trust verification for UCS C480 M7 servers

​​Administration Tools​​

  • Embedded diagnostics for real-time service health monitoring
  • Automated certificate rotation for cluster security
  • Multi-vCenter support in VMware environments

3. Compatibility and Requirements

Component Supported Versions Notes
Hardware Cisco UCS C220/C240 M7 Requires 64GB RAM minimum
Hypervisors VMware ESXi 8.0U4+ vSAN configurations require 25GbE adapters
Network Nexus 9336C-FX2 Multi-Site Layer 2 extension mandatory

​​System Prerequisites​​

  • 200GB available storage for full deployment
  • Cisco UCS Manager 15.0(1) or later
  • Active Smart Licensing account with Presence Suite entitlement

4. Limitations and Restrictions

  1. ​​Cryptographic Constraints​​
  • Lacks support for AES-256-GCM session encryption
  • Incompatible with FIPS-mode clusters
  1. ​​Upgrade Limitations​​
  • Cannot convert to restricted encryption post-installation
  • Requires full reinstallation to switch license types
  1. ​​Feature Restrictions​​
  • Webex Edge Voice unavailable in UNRST deployments
  • Limited to 3-node clusters maximum

5. Secure Download Verification

Validate ISO integrity using:

bash复制
sha512sum Bootable_UCSInstall_CUP_UNRST_15.0.1.10000-10.sha512.iso


Compare output with Cisco’s published hash from Security Center.


Authorized partners can download via Cisco Software Center. Enterprise users may access verified copies through iOSHub’s Collaboration Repository after completing export compliance verification.




Note: UNRST versions permanently disable certain encryption capabilities – verify regional regulations before deployment. Refer to Cisco’s Export Compliance Guide for detailed restrictions.


: Cisco UCS upgrade policies for restricted software

: CUP 15.0.1 security bulletin encryption limitations

: UCS C-Series hardware requirements for bootable ISOs

: VMware compatibility matrices for collaboration systems

: UCS Manager 15.x interoperability specifications

: CVE-2025-11901 vulnerability resolution details

: Nexus switch requirements for presence services


			

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