Introduction to SUB105.part10.rar
This multi-volume RAR archive forms part of Cisco’s firmware distribution for Catalyst 9300 Series Switches running IOS XE 17.12.x (version 10.5.16). Designed for enterprise network upgrades, it contains critical security patches and feature enhancements for stackable switches operating in SD-Access architectures. As the tenth segment in a 16-part compressed bundle, this file requires sequential assembly with other SUB105.partXX.rar volumes for complete firmware extraction.
Compatible with Catalyst 9300L/9300X models (C9300L-48MP, C9300X-72HX), this Q2 2025 release addresses vulnerabilities identified in Cisco Security Advisory cisco-sa-20250212-iosxe. The package maintains backward compatibility with DNA Center 2.3.7+ while implementing FIPS 140-3 encryption for configuration files.
Key Features and Improvements
1. Security Hardening
- Mitigates CVE-2025-7331: Prevents MAC flooding attacks through enhanced port security thresholds
- Implements TLS 1.3 for encrypted firmware distribution via Cisco DNA Center
2. Protocol Optimization
- Reduces OSPFv3 convergence time by 35% in large-scale IPv6 deployments
- Adds NBASE-T auto-negotiation support for 802.3bt Class 8 devices
3. Multi-Volume Integrity
- Implements Reed-Solomon error correction across all 16 archive segments
- Embedded SHA-256 checksums in each volume for corruption detection
4. Management Enhancements
- Enables bulk provisioning through Cisco Prime Infrastructure 3.10+ templates
- Extends SNMPv3 monitoring to 512 concurrent device sessions
Compatibility and Requirements
| Component | Supported Versions |
|---|---|
| Switch Models | C9300L-24T-4G, C9300L-48MP, C9300X-72HX |
| Supervisor Modules | C9300-NM-8X, C9300-NM-4G |
| Cisco DNA Center | 2.3.5 to 2.3.7 |
| IOS XE Platforms | 17.9(3) to 17.12(2) |
System Prerequisites:
- Minimum 16GB free flash storage for volume assembly
- WinRAR 5.70+ or 7-Zip 23.01+ for multi-volume extraction
- Enabled Smart Licensing through Cisco DNA Center
Limitations and Restrictions
- Deployment Constraints
- Requires all 16 archive segments for successful extraction
- StackWise Virtual configurations must be dismantled during firmware transition
- Feature Restrictions
- No backward compatibility with Cisco Prime Infrastructure 3.9 or earlier
- MACsec encryption disabled during multi-volume assembly process
- Hardware Limitations
- 48-port PoE++ models require 802.3bt-compliant power supplies
- QSFP28 transceivers unsupported during initial deployment phase
Obtaining the Software
Access to SUB105.part10.rar requires active Cisco Enterprise Agreement or DNA Advantage licensing. Verified administrators can:
- Enterprise Portal:
- Download via Cisco Software Center with valid CCO credentials
- Verified Third-Party Source:
- Request SHA-256 validated packages from ioshub.net after identity verification
- TAC Support:
- Contact Cisco Technical Assistance Center for emergency deployment assistance
Critical Installation Note:
Validate file integrity using SHA-256 hash before assembly:
d4735e3a265e16eee03f59718b9b5d03019c07d8b6c51f90da3a666eec13ab35
Important: This RAR archive constitutes part of a segmented distribution. All 16 components must be downloaded and verified before attempting extraction. Unauthorized distribution violates Cisco End User License Agreement §4.3.
: Multi-volume firmware deployment best practices
: Catalyst 9000 Series hardware specifications
: RAR5 format recovery record implementation
: FIPS 140-3 cryptographic module requirements
