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

Later ROMMON versions add USB boot support, improved netboot robustness, and better console output.

The filename follows the Cisco ASR 1000 naming convention, breaking down as follows: asr1000-rommon.173-1r.spa.pkg

Q: Does asr1000-rommon.173-1r.spa.pkg work on the ASR1001 (non-X)?
A: Yes, the ASR1001 (original) uses the same ROMMON binaries. However, older ASR1001 (with 2GB DRAM) may not support the full 17.x ROMMON. Always verify hardware compatibility with Cisco. Later ROMMON versions add USB boot support, improved

Q: Does upgrading ROMMON erase my configuration?
A: No. The running-config and startup-config are stored in a separate partition (NVRAM or bootflash variable). ROMMON upgrade is non-destructive to configurations. However, older ASR1001 (with 2GB DRAM) may not

Q: Can I use this file as a boot image?
A: No. You cannot boot IOS-XE from a ROMMON .pkg file. You must still specify an IOS-XE .bin or packages.conf in BOOT variable. The ROMMON only loads that.

Q: My router says "ROMMON upgrade not supported" – why?
A: Some ASR1000 variants, especially older RP1 sub-modules, have soldered, non-upgradable ROMMON. In that case, you are stuck with an older version.