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Router# copy running-config tftp://192.168.1.50/asr-cfg-backup.txt Use code with caution.
ROMMON upgrade is . A failed upgrade (power loss during write, bad file, wrong hardware) leaves the RP in a non-bootable state.
This specific package updates the router's low-level bootstrap firmware to version asr1000-rommon.173-1r.spa.pkg
—the "soul" of the Cisco ASR1000 router. If this failed, the hardware wouldn't just crash; it would forget how to wake up. Silas took a breath and typed the command:
The file asr1000-rommon.173-1r.spa.pkg specifically addresses improvements, bug fixes, and hardware support required for higher-level IOS XE releases. 2. When to Upgrade to asr1000-rommon.173-1r.spa.pkg Router# copy running-config tftp://192
Or, during boot, watch for:
: This release addresses specific caveats and improves the hardware abstraction layer. Embedded Services Processors (ESP)
As Cisco advances its Cisco IOS XE codebase (such as the 17.x releases), the underlying hardware abstraction layer requires updated ROMMON capabilities. Upgrading ensures your router can successfully unpack, validate, and boot modern containerized and monolithic IOS XE images. 2. Mitigation of Known Hardware and Boot Vulnerabilities
But for upgrade, use rommon-upgrade usbflash0: .
Next time you log into your ASR 1000, run show rom-monitor . If the version does not read 173-1r , plan your upgrade window today.
The firmware package is the ROM Monitor (ROMMON) image for the Cisco ASR 1000 Series Aggregation Services Routers . It is specifically used to upgrade the low-level boot code on hardware components like Route Processors (RP), Embedded Services Processors (ESP), and line cards (SPA Interface Processors). Why You Need This Upgrade