Asr1000-rommon.173-1r.spa.pkg New! Jun 2026

| RP Model | Supported ROMMON | Notes | |----------|----------------|-------| | RP1 (ASR1000-RP1) | Up to 152-1r | with 173-1r – different CPU architecture | | RP2 (ASR1000-RP2) | 173-1r and later | Fully compatible | | RP3 (ASR1000-RP3) | 173-1r baseline, but later versions exist | Works, but newer hardware may require 174+ | | ESP100/200/ESP3 | N/A | ESPs have separate firmware (not updated via this package) |

: The rommon-upgrade command is only available in ROMMON versions 15.x and later. If yours is older, use the IOS XE method first. asr1000-rommon.173-1r.spa.pkg

For network engineers running the 17.3.x train, this package represents a stable, mature bootloader capable of handling the complex initialization of the ASR's distributed architecture. By understanding its role and treating it with the caution required for firmware updates, you ensure your router remains resilient and recoverable. | RP Model | Supported ROMMON | Notes

If you are running a High Availability (HA) pair (two routers or an ASR with dual RPs), ensure both Route Processors are updated. In some cases, you may need to perform the upgrade on the standby RP explicitly or ensure the auto-sync feature is functioning correctly to avoid version mismatches between active and standby supervisors. By understanding its role and treating it with

: ASR 1001-X, ASR 1001-HX, ASR 1002-X, ASR 1002-HX, and ASR 1000-RP3