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

The .pkg file is loaded like any other package from the IOS-XE bootflash:

For more in-depth troubleshooting or if your router fails to boot, consult the Cisco ASR 1000 Series ROMmon Upgrade Guide 1.2.1.

After reload, check with:

: 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 asr1000-rommon.173-1r.spa.pkg

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

ASR1000-RP2 and ASR1000-RP3 modules installed in modular chassis (ASR 1004, ASR 1006, ASR 1006-X, ASR 1009-X, and ASR 1013). Step-by-Step Upgrade Guide

The .spa.pkg file contains bundled hardware programming instructions. Upgrading stabilizes the communication between the Route Processor (RP) and the Embedded Services Processor (ESP), reducing line-card drops and bus errors under high traffic loads. Technical Specifications and Supported Hardware Step-by-Step Upgrade Guide The

This post breaks down what this file is, why it is critical for your router's health, and how to verify it is running correctly.

Provides a basic command-line interface (CLI) to manually boot images or recover the system if the primary IOS XE image becomes corrupted. Key Features of Release 17.3(1r)

The all keyword at the end ensures that both Route Processors (RP) and standby modules are upgraded on modular chassis. Step 3: Reload the Device Provides a basic command-line interface (CLI) to manually

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 ?

show rom-monitor RP0 | include Version

Understanding asr1000-rommon.173-1r.spa.pkg: A Comprehensive Guide to ASR1000 ROMMON Upgrades