MDC requires a license to run on the device. If the license expires or is uninstalled, you cannot create, start, or use non-default MDCs. For more information about licenses, see Fundamental Configuration Guide.

MDC commands for the default MDC

This section describes the MDC commands that you can use after logging in to the default MDC (the physical device).

The term "MDC view" refers to the view of a non-default MDC. To enter MDC view, use the mdc command. You can enter the view of the default MDC by using the mdc admin command, but the commands for MDC view are not available.

Unless otherwise stated, the term "MDC" in this section refers to a non-default MDC.

allocate interface

Use allocate interface to assign physical interfaces to an MDC.

Use undo allocate interface to reclaim physical interfaces assigned to an MDC.

Syntax

allocate interface interface-list

undo allocate interface interface-list

Default

All physical interfaces on the device belong to the default MDC. A non-default MDC cannot use any physical interfaces.

Views

MDC view

Predefined user roles

network-admin

mdc-admin

Parameters

interface-list: Specifies a space-separated list of up to 24 interfaces. Each item specifies an interface by its type and number or a range of interfaces on the same card in the form of start-interface-type start-interface-name to end-interface-type end-interface-name. The values of the start-interface-type and end-interface-type arguments must be the same.

Usage guidelines

You can use this command multiple times to assign multiple physical interfaces to a non-default MDC.

For more information about interface assignment guidelines, see Virtual Technologies Configuration Guide.

Examples

# Assign GigabitEthernet 1/0/1 through GigabitEthernet 1/0/48 to MDC sub1.

<Sysname> system-view

[Sysname] mdc sub1

[Sysname-mdc-2-sub1] allocate interface gigabitethernet 1/0/1 to gigabitethernet 1/0/48

Configuration of the interfaces will be lost. Continue? [Y/N]:y

display mdc

Use display mdc to display MDCs and their status information.

Syntax

display mdc [ name mdc-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

name mdc-name: Specifies an MDC by its name, a case-sensitive string of 1 to 15 characters. If you do not specify this option, the command displays all MDCs.

Examples

# Display all MDCs.

<Sysname> display mdc

ID Name Status

1 Admin active

2 sub1 inactive

Table 1 Command output

Field	Description
Status	Status of the MDC: · inactive—The MDC is stopped or not started yet. · starting—The device is executing the mdc start command to start the MDC. · active—The MDC is operating correctly. · updating—The device is executing the location command to authorize the MDC to use an interface card. · stopping—The device is executing the undo mdc start command to stop the MDC.

Field

Description

Status

Status of the MDC:

· inactive—The MDC is stopped or not started yet.

· starting—The device is executing the mdc start command to start the MDC.

· active—The MDC is operating correctly.

· updating—The device is executing the location command to authorize the MDC to use an interface card.

· stopping—The device is executing the undo mdc start command to stop the MDC.

Related commands

mdc

display mdc interface

Use display mdc interface to display the interfaces of MDCs.

Syntax

display mdc [ name mdc-name ] interface

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

name mdc-name: Specifies an MDC by its name, a case-sensitive string of 1 to 15 characters. If you do not specify this option, the command displays the interfaces of all MDCs.

Examples

# Display the interfaces of all MDCs.

<Sysname> display mdc interface

MDC Admin's interface(s):

M-GigabitEthernet1/0/0/0 M-GigabitEthernet1/0/0/1

M-GigabitEthernet1/0/0/2 M-GigabitEthernet1/0/0/3

Ten-GigabitEthernet1/1/0/1 Ten-GigabitEthernet1/1/0/2

MDC sub1's interface(s):

M-GigabitEthernet1/0/0/0 M-GigabitEthernet1/0/0/1

M-GigabitEthernet1/0/0/2 M-GigabitEthernet1/0/0/3

GigabitEthernet1/3/0/1 GigabitEthernet1/3/0/2

GigabitEthernet1/3/0/3 GigabitEthernet1/3/0/4

GigabitEthernet1/3/0/5 GigabitEthernet1/3/0/6

GigabitEthernet1/3/0/7 GigabitEthernet1/3/0/8

GigabitEthernet1/3/0/9 GigabitEthernet1/3/0/10

GigabitEthernet1/3/0/11 GigabitEthernet1/3/0/12

GigabitEthernet1/3/0/13 GigabitEthernet1/3/0/14

GigabitEthernet1/3/0/15 GigabitEthernet1/3/0/16

GigabitEthernet1/3/0/17 GigabitEthernet1/3/0/18

GigabitEthernet1/3/0/19 GigabitEthernet1/3/0/20

GigabitEthernet1/3/0/21 GigabitEthernet1/3/0/22

GigabitEthernet1/3/0/23 GigabitEthernet1/3/0/24

GigabitEthernet1/3/0/25 GigabitEthernet1/3/0/26

GigabitEthernet1/3/0/27 GigabitEthernet1/3/0/28

GigabitEthernet1/3/0/29 GigabitEthernet1/3/0/30

GigabitEthernet1/3/0/31 GigabitEthernet1/3/0/32

GigabitEthernet1/3/0/33 GigabitEthernet1/3/0/34

GigabitEthernet1/3/0/35 GigabitEthernet1/3/0/36

GigabitEthernet1/3/0/37 GigabitEthernet1/3/0/38

GigabitEthernet1/3/0/39 GigabitEthernet1/3/0/40

GigabitEthernet1/3/0/41 GigabitEthernet1/3/0/42

GigabitEthernet1/3/0/43 GigabitEthernet1/3/0/44

Ten-GigabitEthernet1/3/0/45 Ten-GigabitEthernet1/3/0/46

Ten-GigabitEthernet1/3/0/47 Ten-GigabitEthernet1/3/0/48

Related commands

allocate interface

display mdc resource

Use display mdc resource to display the CPU, disk space, and memory usage of MDCs.

Syntax

In standalone mode:

display mdc [ name mdc-name ] resource [ cpu | disk | memory ] [ slot slot-number ]

In IRF mode:

display mdc [ name mdc-name ] resource [ cpu | disk | memory ] [ chassis chassis-number slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

name mdc-name: Specifies an MDC by its name, a case-sensitive string of 1 to 15 characters. If you do not specify this option, the command displays the usage of all MDCs.

cpu: Displays the CPU usage.

disk: Displays the disk space usage.

memory: Displays the memory space usage.

slot slot-number: Specifies a card. If you do not specify this option, the command displays the usage on all cards. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. If you do not specify this option, the command displays the usage on all cards in the IRF fabric. (In IRF mode.)

Examples

# Display the CPU, disk space, and memory space usage of all MDCs.

<Sysname> display mdc resource

Memory usage:

Slot 0 CPU 0:

Used 207.2MB, Free 288.7MB, Total 495.9MB

ID Name Quota(MB) Used(MB) Available(MB)

1 Admin 495.9 172.1 288.7

2 sub1 495.9 17.9 288.7

3 sub2 495.9 17.2 288.7

CPU usage:

Slot 0 CPU 0:

ID Name Weight Usage(%)

1 Admin 10 1

2 sub1 10 0

3 sub2 10 0

Disk usage:

Slot 0 CPU 0:

flash: Used 0.7MB, Free 461.2MB, Total 461.9MB

ID Name Quota(MB) Used(MB) Available(MB)

1 Admin 461.9 0.5 461.2

2 sub1 461.9 0.1 461.2

3 sub2 461.9 0.1 461.2

limit-resource cpu

Use limit-resource cpu to specify a CPU weight for an MDC.

Use undo limit-resource cpu to restore the default.

Syntax

limit-resource cpu weight weight-value

undo limit-resource cpu

Default

The default MDC has a CPU weight of 10 on each MPU and each interface card. Each non-default MDC has a CPU weight of 10 on each MPU and each interface card that it is authorized to use.

Views

MDC view

Predefined user roles

network-admin

mdc-admin

Parameters

weight weight-value: Specifies a CPU weight value in the range of 1 to 10.

Usage guidelines

The number of CPU resources available for an MDC depends on the CPU weight settings for all MDCs that share the same CPU. For example, if three MDCs share the same CPU, setting their weights to 10, 10, and 5 is equivalent to setting their weights to 2, 2, and 1.

· The two MDCs with the same weight can use the CPU for approximately the same period of time.

· The third MDC can use the CPU for about half of the time for each of the other two MDCs.

The CPU weight for the default MDC is fixed at 10. You cannot change it.

The CPU weight specified for an MDC takes effect on all MPUs and all interface cards that the MDC is authorized to use. To authorize an MDC to use an interface card, use the location command.

Examples

# Set the CPU weight to 2 for MDC sub1.

<Sysname> system-view

[Sysname] mdc sub1

[Sysname-mdc-2-sub1] limit-resource cpu weight 2

limit-resource disk

Use limit-resource disk to specify a disk space percentage for an MDC.

Use undo limit-resource disk to restore the default.

Syntax

In standalone mode:

limit-resource disk slot slot-number ratio limit-ratio

undo limit-resource disk slot slot-number

In IRF mode:

limit-resource disk chassis chassis-number slot slot-number ratio limit-ratio

undo limit-resource disk chassis chassis-number slot slot-number

Default

All MDCs share the disk space in the system. An MDC can use all free disk space in the system.

Views

MDC view

Predefined user roles

network-admin

mdc-admin

Parameters

slot slot-number: Specifies an MPU. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an MPU on an IRF member device. (In IRF mode.)

ratio limit-ratio: Specifies the ratio of the disk space an MDC can use on the specified card to the total disk space of the card. The value range is 1 to 100.

Usage guidelines

Before you specify a disk space percentage for an MDC, use the display mdc resource command to view how much disk space the MDC is using. The disk space you assign to an MDC must be greater than the disk space the MDC is using. If the assigned disk space is smaller, the MDC cannot apply for more disk space and no additional folders or files can be created or saved for the MDC.

Examples

# (In standalone mode.) Allow MDC sub1 to use up to 30 percent of the disk space on a slot.

<Sysname> system-view

[Sysname] mdc sub1

[Sysname-mdc-2-sub1] limit-resource disk slot 1 ratio 30

limit-resource memory

Use limit-resource memory to specify a memory space percentage for an MDC.

Use undo limit-resource memory to restore the default.

Syntax

In standalone mode:

limit-resource memory slot slot-number ratio limit-ratio

undo limit-resource memory slot slot-number

In IRF mode:

limit-resource memory chassis chassis-number slot slot-number ratio limit-ratio

undo limit-resource memory chassis chassis-number slot slot-number

Default

All MDCs share the memory space in the system. An MDC can use all free memory space in the system.

Views

MDC view

Predefined user roles

network-admin

Parameters

slot slot-number: Specifies a card. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. (In IRF mode.)

ratio limit-ratio: Specifies the ratio of the memory space that an MDC can use on the specified card to the total memory space of the card. The value range is 1 to 100.

Usage guidelines

This command sets the maximum amount of memory space that an MDC can use. Make sure this amount is sufficient for the MDC to operate correctly.

Examples

# (In standalone mode.) Allow MDC sub1 to use up to 30 percent of the memory space on a slot.

<Sysname> system-view

[Sysname] mdc sub1

[Sysname-mdc-2-sub1] limit-resource memory slot 1 ratio 30

location

Use location to authorize an MDC to use an interface card.

Use undo location to cancel the authorization.

Syntax

In standalone mode:

location slot slot-number

undo location slot slot-number

In IRF mode:

location chassis chassis-number slot slot-number

undo location chassis chassis-number slot slot-number

Default

All interface cards of the device belong to the default MDC. A non-default MDC cannot use any interface cards.

Views

MDC view

Predefined user roles

network-admin

mdc-admin

Parameters

slot slot-number: Specifies an interface card. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies an interface card on an IRF member device. (In IRF mode.)

Usage guidelines

To assign physical interfaces to an MDC, you must authorize the MDC to use the interface cards to which the physical interfaces belong.

You can enter different MDC views to authorize multiple MDCs to use the same interface card.

If you configure this command and then remove the interface card, save the running configuration, and reboot the device, the configuration is removed. You must configure this command again.

Examples

# (In standalone mode.) Authorize MDC sub1 to use the interface card in a slot.

<Sysname> system-view

[Sysname] mdc sub1

[Sysname-mdc-2-sub1] location slot 2

mdc

Use mdc to create an MDC and enter its view, or enter the view of an existing MDC.

Use undo mdc to delete an MDC.

Syntax

mdc mdc-name [ id mdc-id ]

undo mdc mdc-name

Default

A default MDC exists. The MDC name is Admin and the MDC ID is 1.

Views

System view

Predefined user roles

network-admin

Parameters

mdc-name: Specifies the MDC name, a case-sensitive string of 1 to 15 characters.

id mdc-id: Specifies the MDC ID. The value range is 1 to 9. If you do not specify this option, the system assigns the lowest ID number among the available IDs to the MDC.

Usage guidelines

Delete an MDC with caution. Deleting an MDC deletes all settings and hard disk files of the MDC. The deleted settings and files cannot be restored.

The default MDC is system defined. You cannot delete it.

You can create multiple MDCs.An MPU with the LSUM1SUPC0 mark supports a maximum of four non-default MDCs. Other types of MPUs each support a maximum of eight non-default MDCs .

To enter the view of an existing MDC, you can specify the MDC name, or specify both the MDC name and the MDC ID. If you specify both the MDC name and the MDC ID, make sure the two arguments identify the same MDC.

Examples

# Create an MDC named sub1.

<Sysname> system-view

[Sysname] mdc sub1

It will take some time to create MDC...

MDC created successfully.

Related commands

display mdc

mdc start

Use mdc start to start an MDC.

Use undo mdc start to stop an MDC.

Syntax

mdc start

undo mdc start

Views

MDC view

Predefined user roles

network-admin

Usage guidelines

Stop an MDC with caution. Stopping an MDC interrupts all services on the MDC and logs out all login users on the MDC.

To avoid configuration loss, save the running configuration of an MDC before stopping the MDC.

Creating an MDC is the same as constructing a physical device. After creating an MDC, use this command to start the MDC to complete MDC initialization. After an MDC is started, administrators of the MDC can log in to the MDC for MDC configuration and maintenance.

Examples

# Start MDC sub1.

<Sysname> system-view

[Sysname] mdc sub1

[Sysname-mdc-2-sub1] mdc start

It will take some time to start MDC...

MDC started successfully.

switchto mdc

Use switchto mdc to log in to a non-default MDC from the system view of the default MDC and enter MDC user view.

Syntax

switchto mdc mdc-name

Views

System view

Predefined user roles

network-admin

network-operator

Parameters

mdc-name: Specifies an MDC by its name, a case-sensitive string of 1 to 15 characters.

Usage guidelines

You can log in to an MDC only when the MDC is in active state.

Examples

# Log in to MDC sub1 from the system view of the default MDC.

<Sysname> system-view

[Sysname] switchto mdc sub1

******************************************************************************

* Without the owner's prior written consent, *

* no decompiling or reverse-engineering shall be allowed. *

******************************************************************************

<Sysname> display mdc

ID Name Status

2 sub1 active

Related commands

switchback

MDC commands for non-default MDCs

This section describes the MDC commands that you can use after logging in to a non-default MDC.

display mdc

Use display mdc to display the ID, name, and status of the current MDC.

Syntax

display mdc

Views

Any view

Predefined user roles

mdc-admin

mdc-operator

Examples

# Display the ID, name, and status of the current MDC.

<sub1> display mdc

ID Name Status

2 sub1 active

For information about the Status field, see Table 1.

display mdc interface

Use display mdc interface to display the interfaces of the current MDC.

Syntax

display mdc interface

Views

Any view

Predefined user roles

mdc-admin

mdc-operator

Examples

# Display the interfaces of the current MDC.

<sub1> display mdc interface

MDC sub1's interface(s):

M-GigabitEthernet1/0/0/0 M-GigabitEthernet1/0/0/1

M-GigabitEthernet1/0/0/2 M-GigabitEthernet1/0/0/3

GigabitEthernet1/3/0/1 GigabitEthernet1/3/0/2

GigabitEthernet1/3/0/3 GigabitEthernet1/3/0/4

GigabitEthernet1/3/0/5 GigabitEthernet1/3/0/6

GigabitEthernet1/3/0/7 GigabitEthernet1/3/0/8

GigabitEthernet1/3/0/9 GigabitEthernet1/3/0/10

GigabitEthernet1/3/0/11 GigabitEthernet1/3/0/12

GigabitEthernet1/3/0/13 GigabitEthernet1/3/0/14

GigabitEthernet1/3/0/15 GigabitEthernet1/3/0/16

GigabitEthernet1/3/0/17 GigabitEthernet1/3/0/18

GigabitEthernet1/3/0/19 GigabitEthernet1/3/0/20

GigabitEthernet1/3/0/21 GigabitEthernet1/3/0/22

GigabitEthernet1/3/0/23 GigabitEthernet1/3/0/24

GigabitEthernet1/3/0/25 GigabitEthernet1/3/0/26

GigabitEthernet1/3/0/27 GigabitEthernet1/3/0/28

GigabitEthernet1/3/0/29 GigabitEthernet1/3/0/30

GigabitEthernet1/3/0/31 GigabitEthernet1/3/0/32

GigabitEthernet1/3/0/33 GigabitEthernet1/3/0/34

GigabitEthernet1/3/0/35 GigabitEthernet1/3/0/36

GigabitEthernet1/3/0/37 GigabitEthernet1/3/0/38

GigabitEthernet1/3/0/39 GigabitEthernet1/3/0/40

GigabitEthernet1/3/0/41 GigabitEthernet1/3/0/42

GigabitEthernet1/3/0/43 GigabitEthernet1/3/0/44

Ten-GigabitEthernet1/3/0/45 Ten-GigabitEthernet1/3/0/46

Ten-GigabitEthernet1/3/0/47 Ten-GigabitEthernet1/3/0/48

display mdc resource

Use display mdc resource to display the CPU, disk space, and memory usage of the current MDC.

Syntax

In standalone mode:

display mdc resource [ cpu | disk | memory ] [ slot slot-number ]

In IRF mode:

display mdc resource [ cpu | disk | memory ] [ chassis chassis-number slot slot-number ]

Views

Any view

Predefined user roles

mdc-admin

mdc-operator

Parameters

cpu: Displays the CPU usage.

disk: Displays the disk space usage.

memory: Displays the memory space usage.

slot slot-number: Specifies a card. If you do not specify this option, the command displays the usage on all cards. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. If you do not specify this option, the command displays the usage on all cards in the IRF fabric. (In IRF mode.)

Examples

# Display the CPU, disk space, and memory space usage of the current MDC.

<sub1> display mdc resource

Memory usage:

Slot 0 CPU 0:

Used 232.3MB, Free 263.6MB, Total 495.9MB

ID Name Quota(MB) Used(MB) Available(MB)

2 sub1 495.9 42.7 263.6

CPU usage:

Slot 0 CPU 0:

ID Name Weight Usage(%)

2 sub1 10 0

Disk usage:

Slot 0 CPU 0:

flash: Used 0.7MB, Free 461.2MB, Total 461.9MB

ID Name Quota(MB) Used(MB) Available(MB)

2 sub1 461.9 0.1 461.2

switchback

Use switchback to return from a non-default MDC to the default MDC. This command will bring you from the user view of the non-default MDC to the system view of the default MDC.

Syntax

switchback

Views

User view

Predefined user roles

mdc-admin

mdc-operator

Usage guidelines

You can use this command to return to the default MDC only after you use the switchto command to log in to a non-default MDC. If you log in to a non-default MDC by using any other method (such as Telnet), you cannot use this command to access the default MDC.

Examples

# Return from the current MDC to the default MDC.

<sub1> switchback

[Sysname]

Related commands

switchto mdc

02-Virtual Technologies Command Reference

MDC commands

limit-resource memory

mdc

MDC commands for non-default MDCs

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