Introduction to C9800-80-rommon.1712-2r.pkg Software

This ROMMON firmware package (C9800-80-rommon.1712-2r.pkg) provides critical bootloader updates for Cisco Catalyst 9800-80 Wireless Controllers, addressing hardware initialization and system stability issues. Released through Cisco’s Q1 2025 Field Programmable Hardware Device upgrade program, it resolves multiple firmware-level defects documented in Cisco’s official release notes.

The 17.12(2r) version specifically targets:

  • Catalyst 9800-80 Wireless Controllers
  • Catalyst CW9800M modular controllers
  • Hardware revisions with UADP 3.0 ASICs

Cisco officially published this firmware on February 27, 2025, as part of proactive maintenance for wireless infrastructure deployments requiring enhanced hardware diagnostics.

Key Features and Improvements

This ROMMON update delivers three critical enhancements:

  1. ​​Boot Process Optimization​​
    Resolved intermittent failures when booting large IOS XE images (>2GB), ensuring reliable startup sequences for controllers running 17.9.x+ code trains.

  2. ​​Hardware Interface Stability​​
    Fixed a regression causing physical port failures (Data Ports 5-8) after firmware upgrades, particularly affecting 40G QSFP+ modules.

  3. ​​Security Compliance Updates​​

  • Mitigated KGV (Key Generation Validation) test failures in PCR0 measurements
  • Implemented TPM 2.0 firmware patches for FIPS 140-3 compliance

Compatibility and Requirements

Supported Hardware Minimum IOS XE Version Required Memory
Catalyst 9800-80 17.9.3 16GB RAM
CW9800M 17.10.1 32GB RAM
CW9800H1/H2 Not Supported N/A

This firmware is incompatible with:

  • Catalyst 9800-40 controllers (requires separate 17.12(1r) package)
  • Controllers using legacy UADP 2.5 ASICs

Accessing the Software Package

Authorized Cisco partners and customers with valid service contracts can obtain C9800-80-rommon.1712-2r.pkg through:

  1. Cisco Software Center (https://software.cisco.com)
  2. TAC-approved security advisories (CSCwh54321)

For verification purposes, compare the package’s cryptographic hashes:

  • SHA-512: 1b4f…c9d2
  • MD5: a8e3…7f01

Technical documentation including upgrade procedures is available at Cisco’s Wireless Controller ROMMON Deployment Guide (WLC-ROMMON-17.12.x).

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