Asr1000-rommon.173-1r.spa.pkg Hot! | LATEST ✯ |

When upgrading a Cisco ASR 1000 series router to IOS-XE 17.x (such as 17.3 or 17.6), you often need to first update the ROMMON to version 17.3(1r). This specific package, asr1000-rommon.173-1r.spa.pkg, ensures the hardware is compatible with the newer software architecture. Upgrade Procedure

verify /md5 bootflash:asr1000-rommon.173-1r.spa.pkg

CSCvz87460: Some ASR1002 RP2 (VID V07 or higher) units have reported MD5 signature mismatches during the upgrade process. Installation Best Practices asr1000-rommon.173-1r.spa.pkg

• asr1000 : The target hardware platform. This image is compatible with the entire ASR1000 family, including ASR1001-X, ASR1002-HX, ASR1006-X, and ASR1009.
• rommon : The firmware type (ROMMON, not IOS-XE).
• 173 : The major version number. This indicates the primary feature release of the ROMMON.
• 1r : The minor or revision number. The "r" often denotes a reliability or mandatory security patch.
• spa : Shared Port Adapter. This suffix references the underlying architecture where ROMMON also initializes SPA interface modules before the IOS-XE takes over.
• pkg : Package file. Unlike monolithic IOS images, ASR1000 uses a package-provisioning model. This file is installed as a package to upgrade the ROMMON epoch.

3. Why Would You Need to Upgrade ROMMON?

Production routers often run for years without a ROMMON update. However, specific scenarios demand it: When upgrading a Cisco ASR 1000 series router