Cisco ASR 9000 Series Configuration Manual page 21

ROM Monitor Overview
Environmental variables are entered like commands and are always followed by the equal sign (=). Environment
variable settings are entered in capital letters, followed by a definition. For example:
TURBOBOOT=on,disk0,format
Under normal operating conditions, you do not need to modify these variables. They are cleared or set only
when you need to make changes to the way ROM Monitor operates.
Before loading CISCO IOS XR software image in Cisco ASR 9000 Virtualized Service Module (VSM)
Note
Service Card, you must ensure that these environment variables are set at the LC ROMMON prompt:
• TFTP_EXTERNAL_BOOT=0
• AUTOMATIC_BOOT=1
Frequently Used Environmental Variables
The table below shows the main ROM Monitor environmental variables. For instructions on how to use these
variables, see the relevant instructions in this document.
Environmental variable
TFTP_MGMT_INTF={0 | 1}
IP_ADDRESS=ip_address
IP_SUBNET_MASK=ip_address
DEFAULT_GATEWAY=ip_address
TFTP_SERVER=ip_address
TFTP_FILE=drive:path/file
TURBOBOOT=on, boot-device, options
BOOT=drive:path/file
OL-30420-01
Cisco ASR 9000 Series Aggregation Services Router ROM Monitor Configuration Guide, Release 5.1.x
Frequently Used Environmental Variables
Description
Description
Description
Sets the subnet mask for the
Management Ethernet interface on
the RSP card.
Description
Description
Description
Sets the subnet mask for the
Management Ethernet interface on
the RSP card.
Sets the default gateway that serves
the RSP card.
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