Asr1000-rommon.173-1r.spa.pkg !!exclusive!! ★ Trusted & Secure

If you are operating a dual/redundant Route Processor chassis (such as an ASR 1006 with two RPs), you must upgrade the secondary slot as well:

Every part of this filename has a specific meaning. Understanding it prevents version mismatch errors. asr1000-rommon.173-1r.spa.pkg

Comprehensive Guide to asr1000-rommon.173-1r.spa.pkg: Upgrading ASR 1000 ROMMON If you are operating a dual/redundant Route Processor

The 17.x train represented a significant shift in Cisco's IOS-XE architecture. The version 173-1r (v17.3.1) is a mature release in this train. underlying hardware microcode changes

Operating system upgrades on enterprise edge routers are not limited to the IOS XE .bin files. ROMMON firmware must scale alongside the software features to support modern security protocols, underlying hardware microcode changes, and bug fixes. ASR 1006 upgrade rommon and fpd - Cisco Community

ROM: ROMMON version 15.6(1r)S2