The system will write to the ROMMON storage – this takes ~30 seconds.
Always match ROMMON with the recommended version in the IOS-XE release notes for your specific ASR1000 model.
Have you encountered any specific caveats with the 17.3 ROMMON release? Let us know in the comments below!
Prepares the Route Processor (RP), Embedded Services Processor (ESP), and Shared Port Adapters (SPAs) for operation. asr1000-rommon.173-1r.spa.pkg
:
Typically aligned with the Cisco IOS XE Amsterdam 17.3.x release train.
Router# show platform
It resolves known hardware initialization bugs, preventing unexpected reboots and optimizing memory management during the boot cycle.
Use the upgrade rom-monitor command pointing to your specific target slot. For integrated chassis or single-RP setups, use R0 .
The upgrade writes the new image to the clean boot flash region but will not take effect until a hardware reload occurs: Router# reload Use code with caution. 5. Verify the Upgrade The system will write to the ROMMON storage
Updating your ASR 1000 routers to ROMMON 17.3(1r)SPA ensures long-term system stability, robust security at the boot layer, and seamless integration with modern Cisco networking features. To tailor this deployment, please let me know:
This release incorporates essential security fixes, including protections against unauthorized firmware modification and vulnerabilities in the Secure Boot architecture. It ensures that the cryptographic signatures of the booting IOS XE software are verified cleanly. 2. Hardware Compatibility Matrix