Asr1000-rommon.173-1r.spa.pkg |link| Jun 2026
The new ROMMON takes effect on the next boot cycle.
The output should indicate that the selected package asr1000-rommon.173-1r.spa.pkg is configured to run upon the next system initialization. Step 5: Reload the Router
Addresses field notices related to field-programmable gate array (FPGA) initialization, memory leaks in the pre-boot environment, and power supply management.
Before reloading, confirm that the router has staged the software correctly for the next boot cycle: Router# show platform R0 rom-monitor Use code with caution. asr1000-rommon.173-1r.spa.pkg
Always verify the MD5 hash before burning the image to prevent flash corruption.
Always match ROMMON with the recommended version in the IOS-XE release notes for your specific ASR1000 model.
: Once upgraded to version 17.3(1r) on supported platforms, you cannot revert or downgrade to a ROMMON version earlier than 17.3(1r). ⚙️ How to Upgrade ROMMON The new ROMMON takes effect on the next boot cycle
: Multi-slot chassis require a Cisco Hard Disk Drive (HDD) to be present in the Route Processor for a successful upgrade. Step-by-Step Upgrade Procedure
But for upgrade, use rommon-upgrade usbflash0: .
: You must reload the router for the new ROMMON to take effect. write memory reload Use code with caution. Copied to clipboard 3. Verification After the reload, confirm the new version is active. Check Platform Status : show platform Use code with caution. Copied to clipboard Check ROMMON Version : show rom-monitor slot R0 (or show version) Use code with caution. Copied to clipboard 4. Proceed to IOS-XE Upgrade (Optional but Recommended) Before reloading, confirm that the router has staged
Modular controller card used in ASR 1004, ASR 1006, and ASR 1013 chassis.
ASR 1001-X, ASR 1002-X, ASR 1001-HX, ASR 1002-HX, and older ASR 1000 RP1/RP2 modules. Why Upgrade to asr1000-rommon.173-1r.spa.pkg ?
: Introduces better field-diagnostics logging to trace physical layer faults before the primary operating system loads. Prerequisites and Compatibility
If the router fails to boot normally after the upgrade, it may drop into the ROMMON prompt ( rommon 1> ). From this prompt, you can manually boot a known good IOS XE image using the following command:
Look for output like:
