Asr1000-rommon.173-1r.spa.pkg -
Once the router comes back up, verify that the version matches the filename:
Router# show version | include ROMMON
Ensure the output reflects Version 17.3(1r).
Download asr1000-rommon.173-1r.spa.pkg from Cisco Software Download center under "ASR 1000 Series" → "ROMMON Firmware".
Note: Exact commands vary by platform and current boot state; consult the Cisco ROMMON upgrade guide and package-specific release notes.
Type: ROMmon (ROMMON) Upgrade Package
Platform: Cisco ASR 1000 Series (ASR 1001-X, 1002-HX, 1004, 1006, 1009-X, 1013, etc.)
Version: 173-1r
Release Date: ~2020–2021 (Cisco IOS XE 17.3 era)
asr1000-rommon.173-1r.spa.pkg is a small but mighty firmware package that enables modern IOS-XE releases on ASR 1000 RP2 platforms. It is not a routine upgrade, but a foundational step when moving to IOS-XE 17.3 or higher, adding hardware support, or patching critical boot-time vulnerabilities. Treat it with respect: test on a redundant RP, never interrupt the process, and always verify the new version after reload.
For most production networks, this file sits quietly on flash, loaded once during a major lifecycle upgrade—and if all goes well, you will never need to interact with the rommon > prompt it helps protect.
The flicker of the data center’s blue LEDs was the only thing keeping
awake at 3:00 AM. In his terminal, the cursor pulsed next to a filename that felt more like a spell than a driver: asr1000-rommon.173-1r.spa.pkg
He knew the stakes. This wasn't just a standard IOS update; this was the
—the "soul" of the Cisco ASR1000 router. If this failed, the hardware wouldn't just crash; it would forget how to wake up. Silas took a breath and typed the command:
#upgrade rom-monitor filename bootflash:asr1000-rommon.173-1r.spa.pkg all The screen began its rhythmic crawl:
The asr1000-rommon.173-1r.spa.pkg file is a critical ROM monitor (ROMmon) upgrade for Cisco ASR 1000 series routers, specifically required for compatibility with Cisco IOS XE 17.3 and later releases. Key Considerations
Irreversibility: Once upgraded to version 17.3(1r), the router cannot be downgraded to any earlier ROMmon version.
Mandatory Requirement: Routers manufactured after February 28, 2021, ship with this version by default. Known Bugs: asr1000-rommon.173-1r.spa.pkg
CSCwa12192: Upgrading to 17.3(1r) may cause some modules to enter a "disabled" state.
CSCvz87460: Some ASR1002 RP2 (VID V07 or higher) units have reported MD5 signature mismatches during the upgrade process. Installation Best Practices
Verification: Always verify the MD5 hash before burning the image to prevent flash corruption.
Staging: Experts recommend upgrading the ROMmon first, but do not reboot until you have also unpacked the new IOS XE .bin file and updated your boot variables to packages.conf.
Command: Use the upgrade rom-monitor filename [device:]file-name [R0 | R1] command to initiate the process. Platform Specifics
The upgrade is applicable to various hardware components including Route Processors (RPs), Embedded Services Processors (ESPs), and SPA Interface Processors (SIPs). It is often a prerequisite for moving older platforms like the ASR 1001-X or 1002-HX toward the final supported releases of the 17.3 train.
The firmware package asr1000-rommon.173-1r.spa.pkg is the ROM Monitor (ROMMON) image for the Cisco ASR 1000 Series Aggregation Services Routers. It is specifically used to upgrade the low-level boot code on hardware components like Route Processors (RP), Embedded Services Processors (ESP), and line cards (SPA Interface Processors). Why You Need This Upgrade
IOS XE Compatibility: Upgrading to modern Cisco IOS XE 17.x releases often requires a minimum ROMMON version to ensure hardware stability and boot functionality.
Security Fixes: ROMMON upgrades frequently resolve hardware-level vulnerabilities and improve secure boot processes.
Bug Resolution: This specific version (17.3(1r)) addresses various caveats identified in older boot code. Key Specifications & Requirements File Name: asr1000-rommon.173-1r.spa.pkg. Image Size: Approximately 39 MB.
Platform Support: Compatible with multiple ASR 1000 platforms, including ASR 1001-X, 1002-X, and multi-slot chassis with RP2/RP3.
Hardware Dependency: 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
Upgrading ROMMON is a critical operation. Always verify your file integrity and back up configurations before proceeding. Index of /Cisco/IOS/ASR
The text you've provided appears to be a filename: Once the router comes back up, verify that
asr1000-rommon.173-1r.spa.pkg
This filename seems to be associated with a software package for Cisco's ASR (Aggregation Services Router) 1000 series, specifically for the ROMMON (ROM Monitor) software.
Here's a breakdown:
So, if you're looking to describe or "make text" about this filename, you could say:
"The filename asr1000-rommon.173-1r.spa.pkg refers to a specific software package for updating or installing ROMMON version 173-1r on a Cisco ASR 1000 series router."
Understanding the Cisco ASR 1000 ROMMON Upgrade: asr1000-rommon.173-1r.spa.pkg
The asr1000-rommon.173-1r.spa.pkg is a specialized firmware package used to update the ROM Monitor (ROMMON) on Cisco ASR 1000 Series Aggregation Services Routers. As a critical low-level bootstrap, ROMMON is responsible for initializing the router's hardware and loading the Cisco IOS XE software.
Upgrading to version 17.3(1r) is often a prerequisite for moving to modern Cisco IOS XE releases, such as the 17.x train, to ensure hardware compatibility and stability. Key Purpose and Compatibility
The primary function of this package is to update the boot code on various hardware components within the ASR 1000 chassis, including: Route Processors (RP): Such as the RP2 and RP3.
Embedded Services Processors (ESP): The central data plane engine.
SIP and MIP Interface Processors: Handling connectivity for Shared Port Adapters.
Note on Irreversibility: On specific platforms like the ASR 1001-X, 1001-HX, 1002-HX, and ASR 1000-RP3, once you upgrade to ROMMON 17.3(1r), you cannot revert to a version earlier than 17.3(1r). Why Upgrade to ROMMON 17.3(1r)?
IOS XE 17.x Readiness: Newer versions of IOS XE often require a minimum ROMMON version to boot correctly.
Security and Bug Fixes: This release addresses specific caveats and improves the hardware abstraction layer. Ensure the output reflects Version 17
Hardware Support: It provides support for newer hardware revisions (VIDs) that may fail to boot on older ROMMON versions. Installation Guide
To install the asr1000-rommon.173-1r.spa.pkg, follow these standard steps used by Cisco network engineers: ASR 1006 upgrade rommon and fpd - Cisco Community
File size is 0x02728430 Located asr1000-rommon.173-1r.SPA.pkg Image size 41059376 inode num 11, bks cnt 10025 blk size 8*512 ##### Cisco Community
The file asr1000-rommon.173-1r.spa.pkg is a ROM Monitor (ROMmon) firmware package for the Cisco ASR 1000 Series Aggregation Services Routers. This specific version, 17.3(1r), is a critical system component required to support newer versions of the Cisco IOS XE software, specifically when upgrading to the 17.x release train. Purpose and Functionality
System Initialization: ROMmon is the bootstrap program that initializes the hardware and boots the Cisco IOS XE operating software.
Firmware Requirement: Upgrading to certain software releases, such as Cisco IOS XE 17.9.4a, often requires this specific ROMmon version as a prerequisite.
Hardware Compatibility: It is used across various ASR 1000 hardware, including Route Processors (RP), Embedded Services Processors (ESP), and SPA Interface Processors (SIP). Critical Installation Notes
Upgrade Command: The standard procedure to apply this package is using the command:upgrade rom-monitor filename bootflash:asr1000-rommon.173-1r.spa.pkg all.
Reboot Required: A reload of the router or specific hardware module is necessary for the new ROMmon version to take effect. Known Issues:
CSCwa12192: In some scenarios, upgrading with this package may cause certain modules to enter a "disabled" state.
CSCvz87460: On ASR1002 RP2 modules with VID >= V07, MD5 signature mismatches have been reported during the upgrade process. Summary of Attributes Product Series Cisco ASR 1000 Series Component Type ROM Monitor (ROMmon) Version File Extension .pkg (Package file) Primary Use Case Prerequisite for IOS XE 17.x software upgrades
For official documentation and downloads, users typically visit the Cisco Software Central page or refer to the ASR 1000 ROMmon Upgrade Guide.
Unlike standard IOS-XE software upgrades, ROMMON upgrades are often subtler. However, running the correct ROMMON version is essential for: