The ROM Monitor software is also called the boot software, boot image, or boot helper.Īlthough it is distributed with routers that use the Cisco IOS XR software, ROM Monitor is a separate program from the Cisco IOS XR software.ĭuring normal startup, the ROM Monitor initializes the cards, and then control passes to the Cisco IOS XR software. It is sometimes called ROMMON because of the CLI prompt in ROM Monitor mode. The ROM Monitor software is known by many names. When you connect a terminal to a card that is in the ROM Monitor mode, the ROM Monitor CLI prompt is displayed. If the Cisco IOS XR software is rebooted or unable to run, the corresponding card returns to the ROM Monitor mode. The ROM Monitor program provides an initial power-on environment for each card. A version of the ROM Monitor softwareĮxists on each card and is factory supplied. The ROM Monitor is a bootstrap program that initializes the CRS hardware and boots the Cisco IOS XR software when you power on or reload a router. In ROM Monitor (ROMMON) mode, see the other chapters in this book. For instructions on how to perform various tasks This chapter provides an overview of ROM Monitor concepts and operations. Attaching to Primary RP from Standby RP.Resetting the Configuration Register Using Prompts.Resetting to EXEC Mode with CLI Commands.Displaying Environment Variable Settings.Frequently Used Environmental Variables.Displaying the Configuration Register Setting.Displaying the Available ROM Monitor Commands: Examples.Displaying the Available ROM Monitor Commands.How to Set Console Baud in Cisco IOS XR 64 Bit OS.Manually Halting the Initialization Process During System Reload.Placing the DSC in ROM Monitor Mode: Example.Resetting the Configuration Register and Reloading a DSC to ROM Monitor Mode.
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