If you’re already on a recent 17.x IOS XE train, 173-1r is the de facto standard. It’s not flashy, but it fixes real-world boot and security issues that can take down remote routers. Just ensure you meet the IOS XE version prerequisite and schedule a reload window. Recommended for all ASR 1000 deployments on IOS XE 17.3+.
Example: IOS-XE 17.3.2 requires ROMMON 1.73(1r) or higher on RP2. asr1000-rommon.173-1r.spa.pkg
After the router successfully reboots, verify that the active ROMMON version is indeed running 17.3(1r): Router# show platform Use code with caution. Copied to clipboard If you’re already on a recent 17
: While it is possible to upgrade ROMMON and the IOS XE image simultaneously, community consensus and official guides often recommend splitting these tasks to better isolate potential issues : The command typically follows the syntax: Recommended for all ASR 1000 deployments on IOS XE 17
Look for output like:
: It is used across various ASR 1000 hardware, including Route Processors (RP), Embedded Services Processors (ESP), and SPA Interface Processors (SIP). Critical Installation Notes