Cisco Nexus 1000V Command Reference, Release 4.0(4)SV1(2)

B Commands

This chapter describes the Cisco Nexus 1000V commands that begin with the letter, B.

bandwidth (interface)

To set the inherited and received bandwidth for an interface, use the bandwidth command. To restore the default value, use the no form of this command.

bandwidth {kbps}

no bandwidth {kbps}

Syntax Description

Defaults

1000000 kbps

Command Modes

Interface configuration (config-if)

network-admin

Command History

Usage Guidelines

The bandwidth command sets an informational parameter to communicate only the current bandwidth to the higher-level protocols; you cannot adjust the actual bandwidth of an interface using this command.

Note This is a routing parameter only. It does not affect the physical interface.

Examples

This example shows how to configure the bandwidth 30000 kbps:

n1000v(config-if)# bandwidth 30000

Related Commands

banner motd

To configure a message of the day (MOTD) banner, use the banner motd command.

banner motd [delimiting-character message delimiting-character]

no banner motd [delimiting-character message delimiting-character]

Syntax Description

Defaults

"User Access Verification" is the default message of the day.

Command Modes

Configuration (config)

Command History

Usage Guidelines

The MOTD banner is displayed on the terminal before the login prompt whenever you log in.

The message is restricted to 40 lines and 80 characters per line.

To create a multiple-line MOTD banner, press Enter before typing the delimiting character to start a new line. You can enter up to 40 lines of text.

Follow these guidelines when choosing your delimiting character:

•Do not use the delimiting-character in the message string.

•Do not use " and % as delimiters.

Examples

This example shows how to configure and then display a banner message with the text, "Testing the MOTD."

n1000v# config terminal

n1000v(config)# banner motd #Testing the MOTD#

n1000v(config)# show banner motd

Testing the MOTD

This example shows how to configure and then display a multiple-line MOTD banner:

n1000v(config)# banner motd #Welcome to authorized users.

> Unauthorized access prohibited.#

n1000v(config)# show banner motd

Welcome to authorized users.

Unauthorized access prohibited.

This example shows how to revert to the default MOTD banner:

n1000v# config terminal

n1000v(config)# no banner motd

n1000v(config)# show banner motd

User Access Verification

Related Commands

boot auto-copy

To enable automatic copying of boot image files to the standby supervisor module, use the boot auto-copy command. To disable automatic copying, use the no form of this command.

boot auto-copy

no boot auto-copy

Syntax Description

This command has no arguments or keywords.

Defaults

Enabled

Command Modes

Global configuration (config)

network-admin

Command History

Usage Guidelines

When automatic copying of image files is enabled, the Cisco NX-OS software copies the image files referred to by the boot variable to the standby supervisor module. These image files must be present in local memory on the active supervisor module. For kickstart and system boot variables, only those image files that are configured for the standby supervisor module are copied.

Examples

This example shows how to enable automatic copying of boot image files to the standby supervisor module:

n1000v# configure terminal

n1000v(config)# boot auto-copy

Auto-copy administratively enabled

Related Commands

boot kickstart

To configure the boot variable for the kickstart image, use the boot kickstart command. To clear the kickstart image boot variable, use the no form of this command.

boot kickstart [filesystem:[//directory] | directory]filename [sup-1] [sup-2]

no boot kickstart

Syntax Description

Defaults

Configures the kickstart boot variable for both supervisor modules.

Command Modes

Global configuration (config)

network-admin

Command History

Usage Guidelines

The kickstart boot variable is used for loading software images when booting up. You must copy the kickstart image to the device before you reload.

Examples

This example shows how to configure the kickstart boot variable for both supervisor modules:

n1000v# configure terminal

n1000v(config)# boot kickstart bootflash:kickstart-image

This example shows how to configure the kickstart boot variable for the active supervisor module:

n1000v# configure terminal

n1000v(config)# boot kickstart bootflash:kickstart-image sup-1

This example shows how to clear the kickstart boot variable:

n1000v# configure terminal

n1000v(config)# no boot kickstart

Related Commands

boot system

To configure the boot variable for the system image, use the boot system command. To clear the system image boot variable, use the no form of this command.

boot system [filesystem:[//directory] | directory]filename [sup-1] [sup-2]

no boot system

Syntax Description

Defaults

Configures the system boot variable for both supervisor modules.

Command Modes

Global configuration (config)

network-admin

Command History

Usage Guidelines

The system boot variable is used for loading images when booting up. You must copy the system image to the device before you reload.

Examples

This example shows how to configure the system boot variable for both supervisor modules:

n1000v# configure terminal

n1000v(config)# boot system bootflash:system-image

This example shows how to configure the system boot variable for the sup-1 supervisor module:

n1000v# configure terminal

n1000v(config)# boot system bootflash:system-image sup-1

This example shows how to clear the system boot variable:

n1000v# configure terminal

n1000v(config)# no boot system

Related Commands