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

IOS XE 17.3

The asr1000-rommon.173-1r.spa.pkg file is a critical ROM monitor (ROMmon) upgrade for Cisco ASR 1000 series routers, specifically required for compatibility with Cisco and later releases. Key Considerations

Requires Reload

3. Why Upgrade ROMMON on ASR1000?

• Console access (critical, as network interfaces are down initially).
• Can copy a file to bootflash: or harddisk:.
• A maintenance window (5-10 minutes of downtime).

8. Common Misconceptions