Asr1000-rommon.173-1r.spa.pkg

This ROMMON package applies across various ASR 1000 chassis configurations and Route Processors, including:

. ROMmon upgrades are typically required to support newer versions of Cisco IOS XE software (such as the 17.x release train) or to address specific hardware bugs. Key Details Target Devices

But for upgrade, use rommon-upgrade usbflash0: . asr1000-rommon.173-1r.spa.pkg

This specific package updates the router's low-level bootstrap firmware to version

Ensure the router’s local flash memory ( bootflash: ) or external USB flash ( usb0: ) has sufficient free space (typically less than 20 MB is required for the PKG file). This ROMMON package applies across various ASR 1000

If the upgrade fails, do not reload the router. Try to re-run the upgrade rom-monitor command again.

This article is for educational purposes. Always follow Cisco’s official documentation and change management policies when upgrading firmware. This article is for educational purposes

: Initializing the processor hardware and performing power-on self-tests (POST) Bootloading

Execute the upgrade command using the system upgrade syntax. Specify the target slot where the Route Processor resides (usually slot R0, or R1 for redundant control planes).

If the MD5 checksum fails during transfer, delete the package from bootflash: and re-download it. A corrupted ROMMON file will fail the internal security checks and refuse to execute.