Table Of Contents

Management Ethernet Interface Commands on Cisco IOS XR Software

duplex (Management Ethernet)

interface MgmtEth

mac-address (Management Ethernet)

speed (Management Ethernet)

Management Ethernet Interface Commands on Cisco IOS XR Software

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This module describes the Cisco IOS XR commands used to configure the Management Ethernet interfaces.

duplex (Management Ethernet)

To configure duplex mode operation on a Management Ethernet interface, use the duplex command in interface configuration mode. To return the interface to autonegotiated duplex mode, use the no form of the duplex command.

duplex {full | half}

no duplex

Syntax Description

full	Configures the Management Ethernet interface to operate in full duplex mode.
half	Configures the Management Ethernet interface to operate in half duplex mode.

Defaults

Autonegotiates duplex operation

Command Modes

Interface configuration

Command History

Release	Modification
Release 2.0	This command was introduced on the Cisco CRS-1.
Release 3.0	No modification.
Release 3.2	This command was first supported on the Cisco XR 12000 Series Router.
Release 3.3.0	The duplex command replaced the full-duplex and half-duplex commands.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

Task ID

Task ID	Operations
interface	read, write

Examples

The following example shows how to configure the Management Ethernet interface to operate in full duplex mode:

RP/0/RP0/CPU0:router(config)# interface MgmtEth 0/RP0/CPU0/0

RP/0/RP0/CPU0:router(config-if)# duplex full

The following example shows how to configure the Management Ethernet interface to operate in half duplex mode:

RP/0/RP0/CPU0:router(config)# interface MgmtEth 0/RP0/CPU0/0

RP/0/RP0/CPU0:router(config-if)# duplex half

The following example shows how to return a Management Ethernet interface to autonegotiated duplex mode:

RP/0/RP0/CPU0:router(config)# interface MgmtEth 0/RP0/CPU0/0

RP/0/RP0/CPU0:router(config-if)# no duplex

Related Commands

Command	Description
interface MgmtEth	Enters interface configuration mode for the Management Ethernet interface.
show interfaces	Displays statistics for all interfaces configured on the router.

interface MgmtEth

To enter interface configuration mode for the Management Ethernet interface, use the interface MgmtEth command in global configuration mode. To delete a Management Ethernet interface configuration, use the no form of this command.

interface MgmtEth instance

no interface MgmtEth instance

Syntax Description

instance

Physical interface instance. Naming notation is rack/slot/CPU0/port and a slash between values is required as part of the notation. •rack—Chassis number of the rack. In a single-shelf system, the rack is always "0." •slot—Physical slot number of the RP on which the interface is located. Can be RP0 or RP1. •CPU0—Identifies the module. •port—Physical port number of the interface. For more information about the syntax for the router, use the question mark (?) online help function.

Defaults

No default behavior or values

Command Modes

Global configuration

Command History

Release	Modification
Release 2.0	This command was introduced on the Cisco CRS-1.
Release 3.0	No modification.
Release 3.2	This command was first supported on the Cisco XR 12000 Series Router.
Release 3.3.0	No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

Task ID

Task ID	Operations
interface	read, write

Examples

The following example shows how to enter interface configuration mode for a Management Ethernet interface:

RP/0/RP0/CPU0:router(config)# interface MgmtEth 0/9/CPU00/0

RP/0/RP0/CPU0:router(config-if)#

Related Commands

Command	Description
duplex (Management Ethernet)	Configures duplex mode operation on a Management Ethernet interface for a Management Ethernet interface.
mac-address (Management Ethernet)	Sets the MAC layer address of a Management Ethernet interface.
show interfaces	Displays statistics for all interfaces configured on the router.
speed (Management Ethernet)	Configures the speed for a Management Ethernet interface.

mac-address (Management Ethernet)

To set the MAC layer address of a Management Ethernet interface, use the mac-address command in interface configuration mode. To return the interface to its default MAC address, use the no form of the mac-address command.

mac-address value1.value2.value3

no mac-address

Syntax Description

value1.	High 2 bytes of the MAC address in hexadecimal. Range is from 0 to ffff.
value2.	Middle 2 bytes of the MAC address in hexadecimal. Range is from 0 to ffff.
value3	Low 2 bytes of the MAC address in hexadecimal. Range is from 0 to ffff.

Defaults

The default MAC address is read from the hardware burned-in address (BIA).

Command Modes

Interface configuration

Command History

Release	Modification
Release 2.0	This command was introduced on the Cisco CRS-1.
Release 3.0	No modification.
Release 3.2	This command was first supported on the Cisco XR 12000 Series Router.
Release 3.3.0	No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

The MAC address must be in the form of three 4-digit values (12 digits in dotted decimal notation).

Task ID

Task ID	Operations
interface	read, write

Examples

The following example shows how to set the MAC address of the Management Ethernet interface located at 0/RP0/CPU0/0:

RP/0/RP0/CPU0:router(config)# interface MgmtEth 0/RP0/CPU0/0 

RP/0/RP0/CPU0:router(config-if)# mac-address 0001.2468.ABCD

Related Commands

Command	Description
interface MgmtEth	Enters interface configuration mode for the Management Ethernet interface.
show interfaces	Displays statistics for all interfaces configured on the router.

speed (Management Ethernet)

To configure the speed for a Management Ethernet interface, enter the speed command in interface configuration mode. To return the system to autonegotiate speed, use the no form of the speed command.

speed {10 | 100 | 1000}

no speed

Syntax Description

10	Configures the interface to transmit at 10 Mbps.
100	Configures the interface to transmit at 100 Mbps. Note This option is available only on the Cisco CRS-1.
1000	Configures the interface to transmit at 1000 Mbps (1 Gbps).

Defaults

Interface speed is autonegotiated.

Command Modes

Interface configuration

Command History

Release	Modification
Release 2.0	This command was introduced on the Cisco CRS-1.
Release 3.0	No modification.
Release 3.2	This command was first supported on the Cisco XR 12000 Series Router.
Release 3.3.0	No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

On the Cisco CRS-1, valid interface speed options are 10 Mbps, 100 Mbps, or 1000 Mbps.

On the Cisco XR 12000 Series Router, valid interface speed options are 10 Mbps or 100 Mbps.

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Note Keep in mind that both ends of a link must have the same interface speed. A manually configured interface speed overrides any autonegotiated speed, which can prevent a link from coming up if the configured interface speed at one end of a link is different from the interface speed on the other end.

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Table 72 describes the performance of the system for different combinations of the duplex and speed modes. The specified duplex command configured with the specified speed command produces the resulting system action.

Table 72 Relationship Between duplex and speed Commands 

duplex Command	speed Command	Resulting System Action
no duplex	no speed	Autonegotiates both speed and duplex modes.
no duplex	speed 1000	Forces 1000 Mbps (1 Gbps) and full duplex.
no duplex	speed 100	Autonegotiates for duplex mode and forces 100 Mbps.
no duplex	speed 10	Autonegotiates for duplex mode and forces 10 Mbps.
duplex full	no speed	Forces full duplex and autonegotiates for speed.
duplex full	speed 1000	Forces 1000 Mbps (1 Gbps) and full duplex.
duplex full	speed 100	Forces 100 Mbps and full duplex.
duplex full	speed 10	Forces 10 Mbps and full duplex.
duplex half	no speed	Forces half duplex and autonegotiates for speed (10 or 100 Mbps.)
duplex half	speed 100	Forces 100 Mbps and half duplex.
duplex half	speed 10	Forces 10 Mbps and half duplex.

.

Task ID

Task ID	Operations
interface	read, write

Examples

The following example shows how to configure the Management Ethernet interface to transmit at one gigabit:

RP/0/RP0/CPU0:router(config)# interface MgmtEth 0/RP0/CPU0/0

RP/0/RP0/CPU0:router(config-if)# speed 1000

Related Commands

Command	Description
interface MgmtEth	Enters interface configuration mode for the Management Ethernet interface.
show interfaces	Displays statistics for all interfaces configured on the router.