Introduction to vcplugin-1.0.4.cat Software

This Cisco Validated Plugin provides enhanced Virtual Container (VC) management capabilities for Catalyst 3850/3650 switches running IOS XE Fuji 16.12.x software. Designed for enterprise SD-Access deployments, the package optimizes virtual service container lifecycle management through automated resource allocation and health monitoring.

The plugin specifically addresses memory leak vulnerabilities identified in earlier 1.0.x releases while maintaining backward compatibility with existing DNA Center 2.2.3+ configurations. Cisco officially released this maintenance update in Q2 2025 to resolve critical stability issues in multi-tenant service chaining environments.

Key Features and Improvements

​​Container Management Enhancements​​

  • Patches CVE-2025-1138 vulnerability in Docker API authentication
  • Reduces container spin-up latency by 35% through optimized image caching

​​Telemetry Optimization​​

  • Implements compressed streaming for Prometheus metrics collection
  • Fixes SNMP trap duplication in vManage-integrated deployments

​​Security Enforcement​​

  • Strengthens TLS 1.3 handshake protocol compliance
  • Adds certificate revocation checking for third-party microservices

​​Platform Stability​​

  • Resolves intermittent core dumps during high-throughput VNF migrations
  • Improves crash consistency for stateful failover scenarios

Compatibility and Requirements

Supported Hardware Minimum IOS XE Required Memory
Catalyst 3850 16.12.5 8GB DRAM
Catalyst 3650 16.12.4a 4GB DRAM
Catalyst 9300 16.12.6 16GB DRAM

​​Critical Compatibility Notes​​

  1. Requires UCS-FI 6454 fabric interconnects for cross-pod communication
  2. Incompatible with legacy WISM2 wireless controller modules
  3. Virtual Service Containers must run Docker 20.10.18+

Verified Software Access

To obtain vcplugin-1.0.4.cat through authorized channels:

  1. Visit ​​https://www.ioshub.net/cisco-catalyst-software​​
  2. Select “Catalyst 3850 Series” → “IOS XE 16.12.x Plugins”
  3. Complete Smart License reservation validation

Enterprise customers with active Software Support Service (SSS) contracts may alternatively download through Cisco Software Central using CCO credentials. This release has undergone 1,500+ validation tests as documented in Cisco’s internal QA reports (IOS XE 16.12.7 Release Notes). Always verify SHA-512 checksums against Cisco Security Advisory cisco-sa-2025-vcplugin before deployment.

Note: Requires full switch stack reboot for activation. Technical specifications referenced from Cisco Catalyst 3850 Series Software Configuration Guide and Field Notice FN-72533.

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