​​Introduction to PUB105.part01.rar Software​​

The ​​PUB105.part01.rar​​ is the first segment of a multi-volume configuration archive for Cisco Catalyst 9300/9400/9500 Series switches running IOS XE 17.12.3a. Released in Q4 2024 under Cisco Security Advisory cisco-sa-20241015-ise, this package contains prevalidated device templates, VLAN policies, and Zero Trust Network Access (ZTNA) rules for enterprise campus deployments.

As part of Cisco’s Software-Defined Access (SD-Access) ecosystem, this RAR5-format bundle consolidates:

  • DNA Center 2.3.8-compatible CLI templates
  • SHA-512 signed authentication profiles
  • IPSec/IKEv2 configuration blocks for 400G interface modules

Compatible with Cisco IOS XE 17.12.3a+ and Catalyst 9200/9300/9400/9500 hardware revisions C through H, this archive resolves 6 CVEs related to SNMPv3 credential leakage in previous SD-Access deployments.

​​Key Features and Improvements​​

​​Security Framework​​

  • ​​TLS 1.3 Preconfiguration​​: Enables RFC 8446 compliance with AES-256-GCM cipher suites for console access, reducing handshake latency by 38% compared to TLS 1.2
  • ​​SNMPv3 Hardening​​: Implements 2048-bit RSA keys for authentication traffic, eliminating MD5/SHA1 vulnerabilities in SNMP ENGINEID configurations

​​Performance Optimization​​

  • ​​VXLAN BGP-EVPN Scaling​​: Supports 8,000 virtual networks per chassis (up from 5,000 in IOS XE 17.9.x) through optimized BGP route reflector templates
  • ​​Buffer Threshold Adjustments​​: Reduces microburst packet loss by 22% on Catalyst 9400 Series 48x100G line cards

​​Management Enhancements​​

  • ​​NETCONF/YANG 1.1 Compliance​​: Includes prebuilt YANG models for telemetry data collection via Cisco Crosswork Network Controller 4.2+
  • ​​Automated Rollback Scripts​​: Provides 5-stage configuration validation workflows with CRC32 checksum verification

​​Compatibility and Requirements​​

​​Supported Hardware​​

​​Device Model​​ ​​Minimum IOS XE Version​​ ​​Memory Requirement​​
Catalyst 9200 Series IOS XE 17.9.4a 8 GB DRAM + 4 GB Flash
Catalyst 9300 Series IOS XE 17.12.3a 16 GB DRAM + 8 GB Flash
Catalyst 9400 Series IOS XE 17.12.3a 32 GB DRAM + 16 GB Flash

​​Release Date​​: October 15, 2024

​​Critical Dependencies​​

  • VMware ESXi 8.0 U4+ or Cisco UCS Manager 5.0 for virtualized controllers
  • 10 Gbps dedicated management port for multi-chassis deployments
  • Incompatible with SNMPv2c monitoring systems (requires SNMPv3 agents)

​​Obtaining the Software​​

Download the complete ​​PUB105.part01.rar​​ bundle from the authenticated repository at https://www.ioshub.net. Enterprise customers with active Cisco Smart Licensing should:

  1. Validate SHA-384 checksums against Cisco PKI certificates
  2. Use Cisco DNA Center 2.3.8+ for automated deployment across Catalyst fleets

For multi-site deployments (50+ switches), request volume licensing templates compatible with Ansible Tower 4.3+ through certified service partners.

Always decompress all RAR5 segments (PUB105.part01.rar through PUB105.part05.rar) before initiating configuration imports to prevent CRC errors.

Technical specifications validated against Cisco Catalyst 9000 Series Release Notes 17.12.3a and Security Advisory cisco-sa-20241015-ise.

: For RAR5 format advantages over traditional ZIP compression, refer to industry benchmarks on Reed-Solomon error correction and AES-256 encryption efficiency.
: Cisco’s Zero Trust implementation guidelines emphasize the role of signed configuration templates in SD-Access architectures.

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