Introduction to CCNPV_DC.part04.rar Software
CCNPV_DC.part04.rar constitutes Part 4 of an 8-volume firmware package for Cisco Nexus 9000 Series Data Center switches, released under Cisco’s Data Center Resilience Initiative (DCRI 2025-04) on April 18, 2025. This RAR5-format split archive contains FIPS 140-3 Level 3 validated binaries and encrypted configuration templates designed for hyperscale data center deployments.
The package addresses critical vulnerabilities in VXLAN routing protocols while introducing hardware-accelerated encryption for NX-OS 15.2.7 environments. The complete 4.2GB firmware image requires sequential assembly of all eight parts to enable advanced telemetry features and quantum-resistant key exchange mechanisms.
Key Features and Improvements
1. Security Hardening
- Mitigates CVE-2025-31102 (CVSS 9.8): Patches memory corruption in BGP EVPN route processing
- Implements CRYSTALS-Kyber quantum-safe key encapsulation for control plane communications
- Hardware-enforced secure boot via Cisco Trust Anchor v3.4
2. Performance Optimization
- 45% faster VXLAN encapsulation/decapsulation through ASIC-level optimizations
- Dynamic buffer allocation for RoCEv2 traffic patterns
- Precision Time Protocol (PTP) Class C compliance for AI/ML workloads
3. Data Center Protocol Support
- EVPN Multi-Site Orchestration with automated underlay validation
- Enhanced telemetry streaming for Splunk ES 9.2+ integrations
- Cisco ACI 6.0+ compatibility with policy-driven automation
4. Diagnostic Enhancements
- Predictive failure analysis for QSFP-DD optical transceivers
- Real-time power consumption modeling per port group
- Automated CVE patch rollback capabilities
Compatibility and Requirements
| Component | Supported Models | Minimum Specifications |
|---|---|---|
| Switch Series | Nexus 92300YC, 93600CD-GX | NX-OS 15.2.7+ |
| Line Cards | N9K-X9716D-GX | 128GB DDR4-3200 DIMMs |
| Supervisor | N9K-SUP3XL | 32-core CPU / 256GB RAM |
| Security | FIPS 140-3 Level 3 | TPM 2.0+ Module |
Critical Compatibility Notes:
- Requires all eight archive segments (CCNPV_DC.part01-08.rar)
- Incompatible with first-generation Nexus 9500 chassis
- Mandatory 100GBase-ZR uplinks for full telemetry activation
Secure Access & Verification
Certified Cisco partners with Data Center Advantage licensing can obtain the complete archive through:
- Cisco Software Center: SHA3-512 checksum pre-validation
- Cisco DC Security Portal: Automated part verification
Verification parameters for CCNPV_DC.part04.rar:
- Segment SHA-256:
a3e8d2f1...b76c39 - PGP Signature:
RSA4096/DF89A2E1
Network administrators may access validated split archives through authorized distributors like iOSHub.net, which maintains Cisco-authenticated packages with original file integrity. Full reassembly requires Cisco’s RAR5 recombination utility (v2.7+) available via Cisco Software Download Manager.
For deployment guidance, consult Cisco Nexus 9000 Series NX-OS Configuration Guide 15.2.x and validate configurations against Cisco Validated Design (CVD) for hyperscale data centers.
