The file is a Cisco ROM Monitor (ROMMON) upgrade package for the ASR 1000 Series Aggregation Services Routers. Upgrading to this specific version, 17.3(1r) , is often a required prerequisite when migrating to modern Cisco IOS XE 17.x software releases. Key Technical Details
Later ROMMON versions add USB boot support, improved netboot robustness, and better console output. asr1000-rommon.173-1r.spa.pkg
Have you encountered any specific issues upgrading ROMMON on the ASR 1000 series? Let us know in the comments. The file is a Cisco ROM Monitor (ROMMON)
The version 17.3(1r) aligns with the Cisco IOS-XE release trains. ROMMON versions are not arbitrary; they are tied to specific IOS-XE releases. improved netboot robustness