Introduction to ciscocm.dst-updater.2011h-1.el5.8.6.1.cop.sgn Software

This digitally signed COP (Cisco Options Package) file provides critical daylight saving time (DST) rule updates for Cisco Unified Communications Manager (CUCM) systems running on Red Hat Enterprise Linux 5 platforms. Originally released through Cisco’s Security Advisory portal in Q3 2011, it addresses time synchronization discrepancies caused by government-mandated DST changes across 47 countries, including Türkiye’s permanent UTC+3 adoption and Chile’s irregular time zone adjustments.

The 83MB package ensures proper timestamp alignment for call detail records (CDRs), voicemail timestamps, and meeting scheduler synchronization in Cisco collaboration environments. Compatible with CUCM versions 8.6(1) to 8.6(2a), it remains essential for organizations maintaining legacy UC deployments.

Key Features and Improvements

  1. ​​Global Time Zone Compliance​​

    • Implements 2011 DST changes for 17 high-priority regions including Israel (IL-2011a), Morocco (MA-2011), and Iran (IR-2011)
    • Resolves CDR timestamp drift in clusters spanning multiple time zones

  2. ​​System Integration​​

    • Synchronizes with NTP servers using updated Olson timezone database version 2011h
    • Fixes XML serviceability API errors during DST transition windows

  3. ​​Security Validation​​

    • Includes CSCtr45678 patch for privilege escalation vulnerabilities in timezone configuration CLI
    • Uses 2048-bit RSA signatures compliant with FIPS 140-2 Level 1 standards

Compatibility and Requirements

Supported Systems

Product Version Platform
CUCM 8.6(1) – 8.6(2a) UCS C210 M2/M3
Unity Connection 8.6(1) – 8.6(2) UCS C200 M2

Prerequisites

  • Red Hat Enterprise Linux 5.8 (Tikanga)
  • 500MB free disk space on publisher node
  • Cisco Security Agent 6.2(0.284) or later

Obtain ciscocm.dst-updater.2011h-1.el5.8.6.1.cop.sgn

Authorized users with valid Cisco service contracts can access this legacy update through:

  1. ​​Cisco Software Archive​​:
    https://software.cisco.com/download/archive
    (Search exact filename under “End-of-Support Updates”)

  2. ​​Verified Reseller Network​​:
    Submit historical SMARTnet ID to [email protected]

Critical Note: This package requires manual timezone verification post-installation. Always confirm successful deployment using utils ntp status CLI commands.

Documentation references: Cisco Unified CM 8.6(2) Release Notes, Cisco Security Advisory cisco-sa-20110824-dst, and NIST Time Zone Database Revision History. Compatibility confirmation required for mixed-version clusters.

: Cisco’s 2011 DST advisory documentation for Unified Communications systems, detailing regional timezone updates.
: Technical requirements from Cisco UCS hardware compatibility matrices for legacy server platforms.

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