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

The .spa.pkg file contains bundled hardware programming instructions. Upgrading stabilizes the communication between the Route Processor (RP) and the Embedded Services Processor (ESP), reducing line-card drops and bus errors under high traffic loads. Technical Specifications and Supported Hardware

rommon 1> boot bootflash:asr1000rp1-adventerprisek9.03.16.10.S.155-3.S10-ext.bin Use code with caution.

If the router fails to boot normally after the upgrade, it may drop into the ROMMON prompt ( rommon 1> ). From this prompt, you can manually boot a known good IOS XE image using the following command: asr1000-rommon.173-1r.spa.pkg

On the ASR 1000 platform, the architecture is unique because it separates the control plane (Route Processor) from the data plane (ESP - Embedded Service Processor). The ROMMON firmware is responsible for waking up these complex components, performing Power-On Self-Tests (POST), and locating the IOS-XE image to boot.

ROMMON packages are relatively compact, but clogged bootflash directories containing old core dumps or system logs can block transfers. Free up space using the delete bootflash:filename command followed by squeeze bootflash: if required by your filesystem structure. If the router fails to boot normally after

Once the router completes its boot cycle, confirm that the new ROMMON version is active. Run the following command: Router# show rom-monitor slot R0 Use code with caution.

But for upgrade, use rommon-upgrade usbflash0: . ROMMON packages are relatively compact

Several ASR 1004 units with ESPs were stuck in a power cycle loop when booting 17.x IOS XE. 173-1r included a patch to the hardware initialization sequence for the ESP-100 and ESP-200 cards.

Once upgraded to version 17.3(1r) , the router cannot be downgraded to any earlier ROMmon version.

: Required to run Cisco IOS XE Amsterdam (17.3.x) and subsequent software releases seamlessly.

This ROMMON package is designed primarily for the following Cisco ASR 1000 hardware architectures: Cisco ASR 1001-X and ASR 1002-X routers. Cisco ASR 1001-HX and ASR 1002-HX routers.