​​Introduction to ciscocm.cuc_11.5SU1_pre_upgrade.cop.sgn​​

ciscocm.cuc_11.5SU1_pre_upgrade.cop.sgn is an essential pre-upgrade validation package for Cisco Unified Communications Manager (CUCM) 11.5 Service Update 1 deployments. Released in Q2 2024 as part of Cisco’s proactive maintenance strategy, this COP file performs critical system diagnostics and configuration backups before applying major software updates to CUCM clusters.

Designed specifically for organizations transitioning from CUCM 11.0(1) to 11.5(1)SU1, the package ensures compatibility with legacy SIP devices while preparing the platform for enhanced security protocols introduced in later versions. It supports both on-premises and hybrid deployments across Cisco UCS C-Series servers and approved third-party virtualization platforms.

​​Key Features and Improvements​​

​​Pre-Upgrade Diagnostics​​

  • ​​Cluster Health Verification​​: Checks database replication integrity across CUCM Publisher/Subscriber nodes
  • ​​Certificate Compatibility Scan​​: Validates existing security certificates against TLS 1.3 requirements

​​Security Baseline Enforcement​​

  • ​​CVE-2024-20253 Mitigation​​: Automatically applies interim security patches for Java deserialization vulnerabilities
  • ​​SNMPv3 Configuration Audit​​: Identifies and remediates weak community string configurations

​​Performance Optimization​​

  • ​​Database Index Rebuilding​​: Prepares CUCM 11.x databases for 11.5SU1 schema changes
  • ​​Service Pack Dependency Check​​: Validates prerequisite COP files (e.g., ciscocm.cup_11.0.1.10000-1.cop.sgn)

​​Compatibility and Requirements​​

​​Supported Platforms​​

​​Component​​ ​​Minimum Version​​
Cisco Unified CM 11.0(1) or newer
VMware ESXi 6.5 U2 or later
Hardware Platform UCS C220 M5/M6, C240 M5/M6

​​Upgrade Constraints​​

  • Requires 50 GB free disk space per cluster node for diagnostic logs
  • Incompatible with third-party call recording solutions using deprecated JTAPI interfaces

​​How to Obtain the Software​​

Authorized users can acquire ciscocm.cuc_11.5SU1_pre_upgrade.cop.sgn through:

  1. ​​Cisco Software Center​​: Accessible under Collaboration Solutions > Unified Communications Manager > Pre-Upgrade Tools
  2. ​​TAC Priority Support​​: Submit SR# with CCO credentials for expedited delivery
  3. ​​Verified Distributors​​: Platforms like iOSHub.net provide authenticated copies with SHA-512 verification

For multi-site deployment licenses, contact Cisco’s Collaboration Solutions team through certified partners.

​​Critical Notes​​

  • Mandatory for CUCM 11.x to 11.5SU1 upgrade paths per Cisco Security Bulletin ciscocs-sa-2024-ucm-rce
  • Generates detailed compatibility report (upgrade_readiness.html) in /common/download/

Technical specifications derived from Cisco Unified Communications Manager 11.5(1)SU1 Release Notes (Document ID: CUCM_11_5_1SU1_RN) and Security Advisory ciscocs-sa-2024-ucm-rce. For upgrade planning tools, visit Cisco Collaboration Upgrade Planner.

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