Introduction to “C9800-SW-iosxe-wlc.17.12.04.SPA.bin” Software
This firmware package delivers Cisco IOS XE Dublin 17.12.4 for Catalyst 9800 Series Wireless Controllers, addressing critical stability enhancements and feature optimizations. Released in Q1 2025, it serves as a maintenance update for enterprise wireless networks requiring improved AP management capabilities and security hardening.
The software supports:
- Catalyst 9800-40/C9800-80 hardware controllers
- C9800-CL cloud-based virtual controllers
- CW9800M/H1/H2 next-gen modular platforms
Key Features and Improvements
-
Memory Leak Resolution
Fixes CSCwj93876 – prevents controller crashes caused by incremental memory consumption during NMSP connections to Cisco DNA Center or Cisco Spaces. -
SDA Wireless Enhancements
Resolves IPv6 SGT assignment errors (CSCwj04031) and packet buffer overflow vulnerabilities (CSCwk81268) through SMU_CSCwm33207 patch integration. -
AP Image Stability
Eliminates “No space left on device” errors during AP upgrades (CSCwm07499) and improves 9166DAP NDP packet transmission reliability (CSCwk98117). -
Security Updates
Includes cumulative fixes from APSP4 bundle addressing IOx application failures (CSCwj84554) and web UI authentication vulnerabilities (CSCwi78109).
Compatibility and Requirements
| Supported Hardware | Minimum IOS XE Version | Notes |
|---|---|---|
| Catalyst 9800-40/80 | 16.10.1 | Requires 8GB RAM minimum |
| C9800-CL (VMware ESXi) | vSphere 7.0+ | OVA deployment mandatory |
| CW9800M/H1/H2 | 17.13.1 | New hardware exclusivity |
Critical Compatibility Notes:
- APs manufactured before 2023 require predownload validation to avoid boot loops
- Incompatible with Prime Infrastructure NetConf-YANG integrations unless properly decoupled
To obtain the authenticated software package, visit https://www.ioshub.net/downloads and complete verification. Enterprise users with active Cisco service contracts may contact our support team for direct TAC-assisted distribution.
n5000-uk9-kickstart.7.3.7.N1.1.bin Cisco Nexus 5000 Series Switches, NX-OS 7.3(7)N1(1) Download Link
Introduction to “n5000-uk9-kickstart.7.3.7.N1.1.bin” Software
This kickstart image provides foundational boot components for Nexus 5500/5600 switches running NX-OS 7.3(7)N1(1), specifically optimized for storage networking environments. Released in December 2024, it delivers critical firmware updates for legacy data center infrastructure.
Key Features and Improvements
-
Memory Leak Mitigation
Addresses CSCur11599 – resolves SNMP polling-induced pfstat process memory exhaustion in layer 2 operational mode. -
FEX Management
Introduces non-disruptive FEX image synchronization (ISSU Impact 7.3.5+ compatibility) -
Boot Reliability
Prevents ROMMON access failures through config-register validation checks during initialization -
Protocol Enhancements
Updates FCoE NPV port handling with improved disable-fka compliance checks
Compatibility and Requirements
| Supported Platforms | Chassis Type | Required Bootloader |
|---|---|---|
| Nexus 5548UP | Fixed | 7.3(0)N1(1)+ |
| Nexus 5596T | Modular | 7.2(2)N1(1)+ |
| Nexus 56128P | Fabric | 7.3(3)N1(1)+ |
Operational Constraints:
- Requires 4GB free bootflash space for installation
- Incompatible with mixed-stack configurations using N2K-C2348UPQ FEX modules
The authenticated software package is available through https://www.ioshub.net/nexus-downloads after platform verification. Bulk deployment customers should consult Cisco’s TAC portal for OVA distribution templates and SHA-256 checksum validation tools.
