Upgrading to 17.3(1r) may cause some modules to enter a "disabled" state.
Guide to Cisco ASR 1000 ROMMON: Upgrading to asr1000-rommon.173-1r.spa.pkg
: Patches legacy microcode bugs and low-level security vulnerabilities. asr1000-rommon.173-1r.spa.pkg
Or, during boot, watch for:
While the upgrade is generally straightforward, you may encounter some issues: Upgrading to 17
Modular Interface Processor (MIP) 100 units can get stuck in a "booting" state after upgrading with this specific file. Platform Restrictions Once you upgrade to version 17.3(1r), reverting to an earlier version is forbidden on the following platforms: ASR 1001-X ASR 1001-HX ASR 1002-HX Expert Recommendations CSCvz87460 - ASR 1000-RP2|VID>=V07|16.9.7 ... - Cisco Bug
When an ASR 1000 router powers on or reboots, the ROMMON code executes first. It performs the following essential tasks: Platform Restrictions Once you upgrade to version 17
Without a functional ROMMON, the router is bricked at the hardware level.
The filename asr1000-rommon.173-1r.SPA.pkg is structured to provide specific information at a glance:
Cisco ASR routers feature a dual-ROMMON architecture (Gold and Boot regions) for redundancy. If the newly programmed ROMMON fails to initialize properly, the system automatically falls back to the golden master copy factory-programmed on the motherboard.