15-High Availability Command Reference

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01-IRF (cluster) commands
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IRF commands

The following compatibility matrixes show the support of hardware platforms for IRF:

Hardware series

Model

Product code

IRF compatibility

WX1800H series

WX1804H

EWP-WX1804H-PWR-CN

No

WX2500H series

WX2508H-PWR-LTE

WX2510H

WX2510H-F

WX2540H

WX2540H-F

WX2560H

EWP-WX2508H-PWR-LTE

EWP-WX2510H-PWR

EWP-WX2510H-F-PWR

EWP-WX2540H

EWP-WX2540H-F

EWP-WX2560H

No

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WX3024H

WX3024H-L

WX3024H-F

EWP-WX3010H

EWP-WX3010H-X-PWR

EWP-WX3010H-L-PWR

EWP-WX3024H

EWP-WX3024H-L-PWR

EWP-WX3024H-F

No

WX3500H series

WX3508H

WX3510H

WX3520H

WX3520H-F

WX3540H

EWP-WX3508H

EWP-WX3510H

EWP-WX3520H

EWP-WX3520H-F

EWP-WX3540H

Yes

WX5500E series

WX5510E

WX5540E

EWP-WX5510E

EWP-WX5540E

Yes

WX5500H series

WX5540H

WX5560H

WX5580H

EWP-WX5540H

EWP-WX5560H

EWP-WX5580H

Yes

Access controller modules

LSUM1WCME0

EWPXM1WCME0

LSQM1WCMX20

LSUM1WCMX20RT

LSQM1WCMX40

LSUM1WCMX40RT

EWPXM2WCMD0F

EWPXM1MAC0F

LSUM1WCME0

EWPXM1WCME0

LSQM1WCMX20

LSUM1WCMX20RT

LSQM1WCMX40

LSUM1WCMX40RT

EWPXM2WCMD0F

EWPXM1MAC0F

Yes

Hardware series

Model

Product code

IRF compatibility

WX1800H series

WX1804H

WX1810H

WX1820H

WX1840H

EWP-WX1804H-PWR

EWP-WX1810H-PWR

EWP-WX1820H

EWP-WX1840H-GL

No

WX3800H series

WX3820H

WX3840H

EWP-WX3820H-GL

EWP-WX3840H-GL

Yes

WX5800H series

WX5860H

EWP-WX5860H-GL

Yes

display irf

Use display irf to display IRF information.

Syntax

display irf

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display IRF information.

<Sysname> display irf

Member ID  Role     Priority    CPU MAC           Description

   1       Loading  1           00e0-fcbe-3102    F1Num001

 *+2       Master   1           00e0-fcb1-ade2    F1Num002

--------------------------------------------------------

The asterisk (*) indicates the master.

The plus sign (+) indicates the device through which you are logged in.

The right angle bracket (>) indicates the device's stack capability is disabled.

 

Bridge MAC of the IRF: 00e0-fc00-1000

Auto upgrade             : Disabled

MAC persistence          : Disabled

Topo-domain ID           : 30

Auto merge               : Enabled

Table 1 Command output

Field

Description

Member ID

IRF member ID:

·     A prefix of asterisk sign (*) indicates the master device.

·     A prefix of plus sign (+) indicates the device where you are logged in.

·     A prefix of right angle bracket (>) indicates the device that has been temporarily removed from the IRF fabric by using the undo irf member stack enable command.

Role

Role of the member device in the IRF fabric:

·     Master—Master device.

·     Standby—Standby device.

·     Loading—The device is loading software images.

Priority

IRF member priority.

CPU MAC

MAC address of the CPU in the device.

Description

Description you have configured for the member device.

·     If no description is configured, this field displays a dashed line (---).

·     If the description exceeds the maximum number of characters that can be displayed, an ellipsis (…) is displayed in place of the exceeding text. To display the complete description, use the display current-configuration command.

Bridge MAC of the IRF

Bridge MAC address of the IRF fabric.

Auto upgrade

Status of the software auto-update feature:

·     Enabled.

·     Disabled.

MAC persistence

IRF bridge MAC persistence setting:

·     6 min—Bridge MAC address of the IRF fabric remains unchanged for 6 minutes after the address owner leaves.

·     Always—Bridge MAC address of the IRF fabric does not change after the address owner leaves.

·     Disabled—Bridge MAC address of the current master replaces the original bridge MAC address as soon as the owner of the original address leaves.

Topo-domain ID

Topo-domain ID of the IRF fabric. The topo-domain ID you assign to an IRF fabric must uniquely identify the IRF fabric in a multi-IRF network.

Auto merge

Status of the auto-merge feature:

·     Enabled.

·     Disabled.

 

display irf configuration

Use display irf configuration to display IRF settings for each member device in an IRF fabric.

Syntax

display irf configuration

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display IRF settings on all member devices.

<Sysname> display irf configuration

The New ID, Topo-domain, Stack, and Member interfaces fields display settings for the next startup.

Member ID   New ID   Topo-domain   Stack    Member interfaces

1           1        0             Enabled  Disabled

Table 2 Command output

Field

Description

Member ID

Current IRF member ID of the device.

New ID

IRF member ID assigned to the device. This member ID takes effect at reboot.

Topo-domain

IRF topo-domain ID. The topo-domain ID takes effect at reboot.

Stack

Whether multimember stacking capability is enabled:

·     Enabled—The device can form an IRF fabric with other member devices.

·     Disabled—The device cannot form an IRF fabric with other member devices. The device will be removed from the IRF fabric in a maximum of 5 seconds (see "irf member stack enable").

Member interfaces

Network interfaces bound to the IRF port. This field displays Disabled if no network interfaces have been bound to the IRF port.

The channel type of each IRF link is enclosed in brackets. Available channel types include:

·     ctrl—Control channel.

·     data—Data channel.

·     ctrl&data—Hybrid channel.

 

display irf forwarding

Use display irf forwarding to display information about the IRF hello packets received on a member device.

Syntax

display irf forwarding [ slot slot-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

slot slot-number: Specifies a member device by its IRF member ID. The member ID is in the range of 0 to 255. If you do not specify a member device, this command displays information about the IRF hello packets received on the master.

Examples

# Display information about the IRF hello packets received on the master.

<Sysname> display irf forwarding

Member ID      CPU MAC              Hello timeout (sec)

1              00e0-fc0f-8c02       5

2              00e0-fc0f-8c04       5

# Display information about the IRF hello packets received on member device 2.

<Sysname> display irf forwarding slot 2

Member ID      CPU MAC              Hello timeout (sec)

2              00e0-fc0f-8c04       5

1              00e0-fc0f-8c02       4

Table 3 Command output

Field

Description

Member ID

IRF member ID of the packet sender.

CPU MAC

CPU MAC address of the packet sender.

Hello timeout (sec)

The remaining amount of time before the hello packet times out, in seconds. If a new hello packet is not received before the existing hello packet expires, the member device determines that the sender has left the IRF fabric. If a new hello packet is received before the existing hello packet expires, the device refreshes the hello timeout time for the sender based on the received packet.

 

display irf link

Use display irf link to display IRF link information.

Syntax

display irf link

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display IRF link information.

<Sysname> display irf link

Member ID     Member interfaces                   Status

1             Disabled                            --

Table 4 Command output

Field

Description

Member ID

IRF member ID.

Member interfaces

Network interfaces bound to the IRF port. This field displays Disabled if no network interfaces have been bound to the IRF port.

The channel type of each IRF link is enclosed in brackets. Available channel types include:

·     ctrl—Control channel.

·     data—Data channel.

·     ctrl&data—Hybrid channel.

Status

Link status of the network interface:

·     Up—The link is up.

·     Down—The link is down.

·     ADM—The interface has been manually shut down by using the shutdown command.

·     Blocked—The link is blocked. In this state, the device cannot join an IRF fabric. For more information about this state, see "irf member stack enable."

This field displays two hyphens (--) if no network interfaces are bound to the IRF port.

 

display mad

Use display mad to display MAD status and settings.

Syntax

display mad [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

verbose: Displays detailed MAD information. If you do not specify this keyword, the command only displays whether a MAD mechanism is enabled or disabled.

Examples

# Display brief MAD information.

<Sysname> display mad

MAD ARP disabled.

MAD ND disabled.

MAD LACP enabled.

# Display detailed MAD information.

<Sysname> display mad verbose

Multi-active recovery state: No

Excluded ports(user-configured):

  Vlan-interface999

Excluded ports(system-configured):

  Ten-GigabitEthernet1/0/9

  Ten-GigabitEthernet1/0/10

MAD ARP disabled.

MAD ND disabled.

MAD LACP enabled interface: Bridge-Aggregation 1

  MAD status                 : Normal

  Member ID       Port                           MAD status

  1               Ten-GigabitEthernet1/0/1       Normal

  2               Ten-GigabitEthernet1/0/2       Normal

Table 5 Command output

Field

Description

MAD ARP enabled.

Status of ARP MAD.

This field displays MAD ARP disabled if ARP MAD is disabled.

MAD ND enabled.

Status of ND MAD.

This field displays MAD ND disabled if ND MAD is disabled.

MAD LACP disabled.

Status of LACP MAD.

This field displays MAD LACP enabled if LACP MAD is enabled.

Multi-active recovery state

Whether the IRF fabric is in Recovery state:

·     Yes—The IRF fabric is in Recovery state. When MAD detects that an IRF fabric has split into multiple IRF fabrics, it allows one fabric to forward traffic. All the other IRF fabrics are set to the Recovery state. In Recovery state, MAD shuts down all network interfaces in the fabric except for the IRF network interfaces and interfaces configured to not shut down.

·     No—The IRF fabric is not in Recovery state. It is active and can forward traffic.

Excluded ports(user-configured)

Interfaces manually configured to not shut down when the IRF fabric transits to the Recovery state.

Excluded ports(system-configured)

Interfaces set to not shut down by default when the IRF fabric transits to the Recovery state. These interfaces are not user configurable.

MAD ARP enabled interface:

Interfaces on which ARP MAD is enabled.

MAD ND enabled  interface:

Interfaces on which ND MAD is enabled.

MAD LACP enabled interface

Interface on which LACP MAD is enabled. This field is displayed for each interface enabled with LACP MAD.

MAD status

LACP MAD operating status:

·     Normal—LACP MAD is operating correctly.

·     Faulty—LACP MAD is not operating correctly. Verify the following items:

¡     Verify that the interfaces on LACP MAD links are up.

¡     Verify that the intermediate device supports extended LACPDUs.

¡     Verify that all member devices have member ports used for LACP MAD.

Member ID

Port

MAD status

LACP MAD details:

·     Member ID—IRF member ID of a device.

·     Port—Member ports of the aggregate interface used for LACP MAD.

·     MAD status—LACP MAD operating state on a member port. Options include Normal and Faulty.

 

irf auto-merge enable

Use irf auto-merge enable to enable IRF auto-merge.

Use undo irf auto-merge enable to disable IRF auto-merge.

Syntax

irf auto-merge enable

undo irf auto-merge enable

Default

IRF auto-merge is enabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

IRF fabrics that are merging perform master election. The IRF auto-merge feature enables member devices in the IRF fabric that fails the master election to automatically reboot for completing the IRF merge. If the IRF auto-merge feature is disabled, you must follow the system instructions to manually reboot member devices in the IRF fabric that fails master election.

For a successful merge, make sure IRF auto-merge is enabled on both IRF fabrics that are merging.

IRF auto-merge takes effect on merges caused by the following events:

·     The IRF link recovers from a link failure.

·     The IRF network interfaces of the member devices are connected through a Layer 2 network after the interfaces are bound to IRF ports.

The feature does not take effect on a merge that occurs in the following conditions:

·     You add a network interface to an IRF port.

·     The network interface has been connected to the peer member device through a Layer 2 network before you bind it to the IRF port.

Examples

# Enable IRF auto-merge.

<Sysname> system-view

[Sysname] irf auto-merge enable

irf auto-update enable

Use irf auto-update enable to enable software auto-update.

Use undo irf auto-update enable to disable software auto-update.

Syntax

irf auto-update enable

undo irf auto-update enable

Default

Software auto-update is enabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

This command automatically propagates the current software images of the master in the IRF fabric to member devices you are adding to the IRF fabric.

To ensure a successful software update, verify that the new device you are adding to the IRF fabric has sufficient storage space for the new software images. If sufficient storage space is not available, the IRF fabric automatically deletes the current software images of the device. If the reclaimed space is still insufficient, the device cannot complete the auto-update. You must reboot the device, and then access the BootWare menu to delete files.

Examples

# Enable software auto-update.

<Sysname> system-view

[Sysname] irf auto-update enable

irf domain

Use irf domain to assign an IRF MAD domain ID to each member device or to an IRF fabric.

Use undo irf domain to restore the default.

Syntax

irf domain domain-id

undo irf domain

Default

The IRF MAD domain ID is 0.

Views

System view

Predefined user roles

network-admin

Parameters

domain-id: Specifies an IRF MAD domain ID. The value range is 0 to 4294967295.

Usage guidelines

An IRF MAD domain ID uniquely identifies an IRF multi-active detection domain. If one IRF fabric uses another IRF fabric as the intermediate device for LACP MAD, ARP MAD, or ND MAD, you must assign the two IRF fabrics different MAD domain IDs for correct split detection. False detection causes IRF split.

An IRF fabric has only one IRF MAD domain ID. You can change the IRF MAD domain ID by using the irf domain, mad enable, mad arp enable, or mad nd enable command. The IRF MAD domain IDs configured by using these commands overwrite each other.

The irf domain command is available only on the default MDC. The mad enable, mad arp enable, and mad nd enable commands are available on all MDCs. If you change the IRF MAD domain ID in one MDC, the IRF MAD domain IDs in all other MDCs change automatically.

Examples

# Set the IRF MAD domain ID to 10.

<Sysname> system-view

[Sysname] irf domain 10

irf mac-address persistent

Use irf mac-address persistent to configure IRF bridge MAC persistence.

Use undo irf mac-address persistent to enable the IRF fabric to change its bridge MAC address as soon as the address owner leaves.

Syntax

irf mac-address persistent { always | timer }

undo irf mac-address persistent

Default

By default, the IRF bridge MAC address remains unchanged for 6 minutes after the address owner leaves.

Views

System view

Predefined user roles

network-admin

Parameters

always: Enables the IRF bridge MAC address to be permanent. The IRF bridge MAC address does not change after the address owner leaves.

timer: Enables the IRF bridge MAC address to remain unchanged for 6 minutes after the address owner leaves. If the owner rejoins the IRF fabric within the time limit, the IRF bridge MAC address does not change. If the owner does not rejoin within the time limit, the IRF fabric uses the bridge MAC address of the current master as the bridge MAC address.

Usage guidelines

If the undo form of this command is used, bridge MAC address of the current master replaces the original IRF bridge MAC as soon as the original address owner leaves.

On a switched LAN, the IRF bridge MAC address must be unique for correct traffic transmission.

When IRF fabrics merge, IRF ignores the IRF bridge MAC address and checks the bridge MAC address of each member device in the IRF fabrics. IRF merge fails if any two member devices have the same bridge MAC address.

If the IRF fabric has multi-member aggregate links, do not use the undo irf mac-address persistent command. Use of this command might result in unnecessary traffic disruption.

If ARP MAD or ND MAD is used with the spanning tree feature, disable IRF bridge MAC persistence by using the undo irf mac-address persistent command.

Examples

# Enable the IRF bridge MAC address to be permanent.

<Sysname> system-view

[Sysname] irf mac-address persistent always

irf member description

Use irf member description to configure a description for an IRF member device.

Use undo irf member description to restore the default.

Syntax

irf member member-id description text

undo irf member member-id description

Default

No description is configured for an IRF member device.

Views

System view

Predefined user roles

network-admin

Parameters

member-id: Specifies a member device by its IRF member ID. The following compatibility matrixes show the value ranges for the IRF member ID:

 

Hardware series

Model

Product code

Value range

WX1800H series

WX1804H

EWP-WX1804H-PWR-CN

Not supported

WX2500H series

WX2508H-PWR-LTE

WX2510H

WX2510H-F

WX2540H

WX2540H-F

WX2560H

EWP-WX2508H-PWR-LTE

EWP-WX2510H-PWR

EWP-WX2510H-F-PWR

EWP-WX2540H

EWP-WX2540H-F

EWP-WX2560H

Not supported

WX3000H series

WX3010H

WX3010H-X

WX3010H-L

WX3024H

WX3024H-L

WX3024H-F

EWP-WX3010H

EWP-WX3010H-X-PWR

EWP-WX3010H-L-PWR

EWP-WX3024H

EWP-WX3024H-L-PWR

EWP-WX3024H-F

Not supported

WX3500H series

WX3508H

WX3510H

WX3520H

WX3520H-F

WX3540H

EWP-WX3508H

EWP-WX3510H

EWP-WX3520H

EWP-WX3520H-F

EWP-WX3540H

1 or 2

WX5500E series

WX5510E

WX5540E

EWP-WX5510E

EWP-WX5540E

·     WX5510E: Not supported

·     WX5540E: 1 or 2

WX5500H series

WX5540H

WX5560H

WX5580H

EWP-WX5540H

EWP-WX5560H

EWP-WX5580H

1 or 2

Access controller modules

LSUM1WCME0

EWPXM1WCME0

LSQM1WCMX20

LSUM1WCMX20RT

LSQM1WCMX40

LSUM1WCMX40RT

EWPXM2WCMD0F

EWPXM1MAC0F

LSUM1WCME0

EWPXM1WCME0

LSQM1WCMX20

LSUM1WCMX20RT

LSQM1WCMX40

LSUM1WCMX40RT

EWPXM2WCMD0F

EWPXM1MAC0F

1 or 2

Hardware series

Model

Product code

Value range

WX1800H series

WX1804H

WX1810H

WX1820H

WX1840H

EWP-WX1804H-PWR

EWP-WX1810H-PWR

EWP-WX1820H

EWP-WX1840H-GL

Not supported

WX3800H series

WX3820H

WX3840H

EWP-WX3820H-GL

EWP-WX3840H-GL

1 or 2

WX5800H series

WX5860H

EWP-WX5860H-GL

1 or 2

text: Specifies a description, a string of 1 to 127 characters.

Usage guidelines

Configure a description for each IRF member device for the ease of management. As a best practice, configure the physical location of each IRF member device if they are located on different floors or in different buildings or if there are multiple IRF fabrics.

Examples

# Configure the description as F1Num001 for IRF member 1.

<Sysname> system-view

[Sysname] irf member 1 description F1Num001

irf member priority

Use irf member priority to change the priority of an IRF member device.

Use undo irf member priority to restore the default.

Syntax

irf member member-id priority priority

undo irf member member-id priority

Default

The IRF member priority is 1.

Views

System view

Predefined user roles

network-admin

Parameters

member-id: Specifies a member device by its IRF member ID. The value range for this argument varies by device model. For more information, see the member-id argument in "irf member description."

priority: Sets the member priority in the range of 1 to 32. The greater the priority value, the higher the priority. A member with higher priority is more likely to be the master.

Examples

# Set the priority of IRF member 2 to 32.

<Sysname> system-view

[Sysname] irf member 2 priority 32

irf member renumber

Use irf member renumber to change the IRF member ID of an IRF member device.

Use undo irf member renumber to restore the previous IRF member ID of the device.

Syntax

irf member member-id renumber new-member-id

undo irf member member-id renumber

Default

The IRF member ID is 1.

Views

System view

Predefined user roles

network-admin

Parameters

member-id: Specifies a member device by its IRF member ID. The value range for this argument varies by device model. For more information, see the member-id argument in "irf member description."

new-member-id: Assigns a new ID to the IRF member device.

Usage guidelines

CAUTION

CAUTION:

In an IRF fabric, an IRF member ID change can invalidate member ID-related settings, including interface and file path settings, and cause data loss. Make sure you fully understand its impact on your live network.

 

Make sure each member device in the IRF fabric has a unique member ID.

The new IRF member ID takes effect after you reboot the member device.

Examples

# Change the member ID of an IRF member device from 1 to 2.

<Sysname> system-view

[Sysname] irf member 1 renumber 2

Renumbering the member ID may result in configuration change or loss. Continue? [Y/N]:y

irf member stack enable

Use irf member stack enable to enable an IRF member device to receive and send IRF control packets.

Use undo irf member stack enable to disable an IRF member device from receiving or sending IRF control packets.

Syntax

irf member member-id stack enable

undo irf member member-id stack enable

Default

An IRF member device receives and sends IRF control packets.

Views

System view

Predefined user roles

network-admin

Parameters

member-id: Specifies a member device by its IRF member ID. The value range for this argument varies by device model. For more information, see the member-id argument in "irf member description."

Usage guidelines

You can use the undo form of this command to remove a member device from an IRF fabric for troubleshooting or maintenance purposes. The removed member device still runs the original IRF settings. However, it does not send or receive IRF control packets.

After you finish the troubleshooting or maintenance tasks, you can execute this command to add the device back to the IRF fabric without having to reconfigure IRF settings. For this command to take effect, you must save the command setting and reboot the device.

Examples

# Remove member device 2 from the IRF fabric.

<Sysname> system-view

[Sysname] undo irf member 2 stack enable

Member 2 will leave from the IRF and cannot form an IRF with any other devices. Continue? [Y/N]: y

Operation succeeded. Please check the configuration on member 2 with the IRF for configuration collisions.

# Add the removed device back to the IRF fabric.

<Sysname> system-view

[Sysname] irf member 2 stack enable

Please save the configuration, and then reboot the device for the configuration to take effect.

irf topo-domain

Use irf topo-domain to assign an IRF topo-domain ID to each member device or to an IRF fabric.

Use undo irf topo-domain to restore the default.

Syntax

irf topo-domain topo-domain-id

undo irf topo-domain

Default

The IRF topo-domain ID is 0.

Views

System view

Predefined user roles

network-admin

Parameters

topo-domain-id: Specifies an IRF topo-domain ID. The value range is 0 to 4294967295.

Usage guidelines

An IRF topo-domain ID uniquely identifies an IRF fabric.

You must assign the same topo-domain ID to devices you are adding to the same IRF fabric.

For the topo-domain ID change to take effect, you must reboot the device.

Examples

# Set the IRF topo-domain ID to 10.

<Sysname> system-view

[Sysname] irf topo-domain 10

The configuration will take effect at the next startup.

irf-optimize wlan reliable-access

Use irf-optimize wlan reliable-access to optimize IRF for reliable WLAN access.

Use undo irf-optimize wlan reliable-access to disable IRF optimization for WLAN access.

Syntax

irf-optimize wlan reliable-access

undo irf-optimize wlan reliable-access

Default

IRF optimization for WLAN access is enabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

Use this command to guarantee reliable AP and client access. This command accelerates IRF master election, new member joining, and IRF member role change to prevent IRF events from causing unstable AP and client access.

Examples

# Enable IRF optimization for reliable WLAN access.

<Sysname> system-view

[Sysname] irf-optimize wlan reliable-access

irf-port

Use irf-port to enter IRF port view.

Syntax

irf-port member-id

Views

System view

Predefined user roles

network-admin

Parameters

member-id: Specifies an IRF member ID. The value range for this argument varies by device model. For more information, see the member-id argument in "irf member renumber."

Usage guidelines

Each member device has only one IRF port. The IRF port ID is the IRF member ID.

You must enter IRF port view to bind links to the IRF port.

Examples

# Enter IRF port view of the IRF port on member device 1.

<Sysname> system-view

[Sysname] irf-port 1

Related commands

port group interface

irf-port-configuration active

Use irf-port-configuration active to activate IRF port settings.

Syntax

irf-port-configuration active

Views

System view

Predefined user roles

network-admin

Usage guidelines

After you bind links to an IRF port, you must execute this command for the bindings to take effect. This command enables two devices to merge into one IRF fabric.

The system activates the IRF port settings automatically in the following situations:

·     The configuration file that the device starts with contains IRF port bindings.

·     You are binding links to an IRF port after an IRF fabric is formed.

Examples

# Activate the IRF port settings.

<Sysname> system-view

[Sysname] irf-port-configuration active

mad arp enable

Use mad arp enable to enable ARP MAD.

Use undo mad arp enable to disable ARP MAD.

Syntax

mad arp enable

undo mad arp enable

Default

ARP MAD is disabled.

Views

VLAN interface view

Predefined user roles

network-admin

Usage guidelines

Do not configure ARP MAD together with LACP MAD, because they handle collisions differently.

When you configure ARP MAD on a VLAN interface, follow these restrictions and guidelines:

 

Category

Restrictions and guidelines

ARP MAD VLAN

·     Do not enable ARP MAD on VLAN-interface 1.

·     If you are using an intermediate device, perform the following tasks:

¡     On the IRF fabric and the intermediate device, create a VLAN for ARP MAD.

¡     On the IRF fabric and the intermediate device, assign the ports of ARP MAD links to the ARP MAD VLAN.

¡     On the IRF fabric, create a VLAN interface for the ARP MAD VLAN.

·     Do not use the ARP MAD VLAN for any other purposes.

ARP MAD and feature configuration

If an intermediate device is used, make sure the following requirements are met:

·     Run the spanning tree feature between the IRF fabric and the intermediate device to ensure that there is only one ARP MAD link in forwarding state. For more information about the spanning tree feature and its configuration, see Network Connectivity Configuration Guide.

·     Enable the IRF fabric to change its bridge MAC address as soon as the address owner leaves.

·     If the intermediate device is also an IRF fabric, assign the two IRF fabrics different MAD domain IDs for correct split detection.

When you configure ARP MAD on a Reth interface, follow these restrictions and guidelines:

 

Category

Restrictions and guidelines

ARP MAD-enabled Reth interface and ARP MAD VLAN

Perform the following tasks on the IRF fabric and the intermediate device:

·     On the IRF fabric, create a Reth interface and assign a network interface on each member device to the Reth interface.

·     On the intermediate device, create a VLAN for ARP MAD and assign ports connected to the Reth interface of the IRF fabric to the VLAN. Do not use the ARP MAD VLAN on the intermediate device for any purposes other than ARP MAD.

ARP MAD and feature configuration

·     Enable the IRF fabric to change its bridge MAC address as soon as the address owner leaves.

·     If an intermediate device is also an IRF fabric, assign the two IRF fabrics different MAD domain IDs for correct split detection.

When you execute the mad arp enable command, the system prompts you to enter a MAD domain ID. If you do not want to change the current MAD domain ID, press enter at the prompt.

An IRF fabric has only one IRF MAD domain ID. You can change the IRF MAD domain ID by using the following commands: irf domain, mad enable, mad arp enable, or mad nd enable. The IRF MAD domain IDs configured by using these commands overwrite each other.

Examples

# Enable ARP MAD on VLAN-interface 3.

<Sysname> system-view

[Sysname] interface vlan-interface 3

[Sysname-Vlan-interface3] mad arp enable

You need to assign a domain ID (range: 0-4294967295)

[Current domain is: 0]: 1

The assigned domain ID is: 1

Related commands

irf domain

mad enable

Use mad enable to enable LACP MAD.

Use undo mad enable to disable LACP MAD.

Syntax

mad enable

undo mad enable

Default

LACP MAD is disabled.

Views

Aggregate interface view

Predefined user roles

network-admin

Usage guidelines

LACP MAD handles collisions differently than ARP MAD and ND MAD. To avoid conflicts, do not enable LACP MAD together with ARP MAD and ND MAD on an IRF fabric.

LACP MAD requires a device that supports extended LACPDUs to act as the intermediate device. You must set up a dynamic link aggregation group that spans all IRF member devices between the IRF fabric and the intermediate device. To enable dynamic link aggregation, configure the link-aggregation mode dynamic command on the aggregate interface.

If one IRF fabric uses another IRF fabric as the intermediate device for LACP MAD, you must assign the two IRF fabrics different MAD domain IDs for correct split detection. False detection causes IRF split.

When you execute the mad enable command, the system prompts you to enter a MAD domain ID. If you do not want to change the current MAD domain ID, press enter at the prompt.

An IRF fabric has only one IRF MAD domain ID. You can change the IRF MAD domain ID by using the following commands: irf domain, mad enable, mad arp enable, or mad nd enable. The IRF MAD domain IDs configured by using these commands overwrite each other.

Examples

# Enable LACP MAD on Bridge-Aggregation 1, a Layer 2 dynamic aggregate interface.

<Sysname> system-view

[Sysname] interface bridge-aggregation 1

[Sysname-Bridge-Aggregation1] link-aggregation mode dynamic

[Sysname-Bridge-Aggregation1] mad enable

You need to assign a domain ID (range: 0-4294967295)

[Current domain is: 0]: 1

The assigned domain ID is: 1

MAD LACP only enable on dynamic aggregation interface.

Related commands

irf domain

mad exclude interface

Use mad exclude interface to exclude a network interface from being shut down when the IRF fabric transits to the Recovery state upon detection of a multi-active collision.

Use undo mad exclude interface to configure the IRF fabric to shut down a network interface when it transits to the Recovery state upon detection of a multi-active collision.

Syntax

mad exclude interface interface-type interface-number

undo mad exclude interface interface-type interface-number

Default

When an IRF fabric transits to the Recovery state, the system automatically shuts down all network interfaces except for the IRF network interfaces.

Views

System view

Predefined user roles

network-admin

Parameters

interface-type interface-number: Specifies a network interface by its type and number.

Usage guidelines

If an interface must be kept in up state for special purposes such as Telnet connection, exclude the interface from the shutdown action. As a best practice to avoid incorrect traffic forwarding, do not exclude any interfaces except for the interfaces used for Telnet.

Do not exclude the following interfaces from the shutdown action:

·     Aggregate interfaces used for MAD and their member interfaces.

·     VLAN interfaces used for MAD and its Ethernet ports.

·     Reth interfaces used for MAD and their member interfaces.

The interfaces that have been shut down by MAD come up when the member devices reboot to join the recovered IRF fabric. If auto recovery fails because the current master fails or any other exception occurs, use the mad restore command to manually recover the member devices and bring up the interfaces.

Examples

# Exclude GigabitEthernet 1/0/1 from being shut down when the MAD status transits to Recovery.

<Sysname> system-view

[Sysname] mad exclude interface gigabitethernet 1/0/1

Related commands

mad restore

mad nd enable

Use mad nd enable to enable ND MAD.

Use undo mad nd enable to disable ND MAD.

Syntax

mad nd enable

undo mad nd enable

Default

ND MAD is disabled.

Views

VLAN interface view

Predefined user roles

network-admin

Usage guidelines

Do not configure ND MAD together with LACP MAD, because they handle collisions differently.

When you configure ND MAD on a VLAN interface, follow these restrictions and guidelines:

 

Category

Restrictions and guidelines

ND MAD VLAN

·     Do not enable ND MAD on VLAN-interface 1.

·     If you are using an intermediate device, perform the following tasks:

¡     On the IRF fabric and the intermediate device, create a VLAN for ND MAD.

¡     On the IRF fabric and the intermediate device, assign the ports of ND MAD links to the ND MAD VLAN.

¡     On the IRF fabric, create a VLAN interface for the ND MAD VLAN.

·     Do not use the ND MAD VLAN for any other purposes.

ND MAD and feature configuration

If an intermediate device is used, make sure the following requirements are met:

·     Run the spanning tree feature between the IRF fabric and the intermediate device to ensure that there is only one ND MAD link in forwarding state. For more information about the spanning tree feature and its configuration, see Network Connectivity Configuration Guide.

·     Enable the IRF fabric to change its bridge MAC address as soon as the address owner leaves.

·     If the intermediate device is also an IRF fabric, assign the two IRF fabrics different MAD domain IDs for correct split detection.

When you execute the mad nd enable command, the system prompts you to enter a MAD domain ID. If you do not want to change the current MAD domain ID, press enter at the prompt.

An IRF fabric has only one IRF MAD domain ID. You can change the IRF MAD domain ID by using the following commands: irf domain, mad enable, mad arp enable, or mad nd enable. The IRF MAD domain IDs configured by using these commands overwrite each other.

Examples

# Enable ND MAD on VLAN-interface 3.

<Sysname> system-view

[Sysname] interface vlan-interface 3

[Sysname-Vlan-interface3] mad nd enable

You need to assign a domain ID (range: 0-4294967295)

[Current domain is: 0]: 1

The assigned domain ID is: 1

Related commands

irf domain

mad restore

Use mad restore to restore the normal MAD state of the IRF fabric in Recovery state.

Syntax

mad restore

Views

System view

Predefined user roles

network-admin

Usage guidelines

For split IRF fabrics, if the active IRF fabric fails to work before the IRF split problem is fixed, use this command to restore an IRF fabric in Recovery state. The recovered IRF fabric will take over the active IRF fabric role.

Examples

# Restore the normal MAD state of the IRF fabric in Recovery state.

<Sysname> system-view

[Sysname] mad restore

   This command will restore the device from multi-active conflict state. Continue? [Y/N]:Y

Restoring from multi-active conflict state, please wait...

port group interface

Use port group interface to bind a network interface to an IRF port.

Use undo port group interface to remove the binding of a network interface and an IRF port.

Syntax

port group interface interface-type interface-number [ type { control | data } ]

undo port group interface interface-name

Default

No network interfaces are bound to an IRF port.

Views

IRF port view

Predefined user roles

network-admin

Parameters

interface-type interface-number: Specifies a network interface by its type and number.

interface-name: Specifies a network interface in the interface-typeinterface-number format. No space is allowed between the interface-type and interface-number arguments.

type { control | data }: Specifies a channel type for the IRF link. The hybrid channel type applies if you do not specify a channel type. The link can forward both data and control packets.

·     control: Sets the link type to control. The link can forward only control packets, such as IRF protocol packets.

·     data: Sets the link type to data. The link can forward only data packets.

Usage guidelines

An IRF port must have a minimum of one hybrid channel, or a minimum of one data channel and one control channel. As a best practice, use separate physical links as data and control channels to prevent control traffic from being delayed when a large amount of data traffic is present. An IRF port can have a maximum of four IRF network interfaces.

To change the channel type of an IRF link, you must first remove the binding, and then rebind the link.

Use the shutdown command to shut down a network interface before you bind it to or remove it from an IRF port. To bring up the network interface after a binding or binding removal operation, use the undo shutdown command.

Examples

# Bind GigabitEthernet 2/0/1 as a hybrid channel to the IRF port on IRF member 2.

<Sysname> system-view

[Sysname] interface gigabitethernet 2/0/1

[Sysname-GigabitEthernet2/0/1] shutdown

[Sysname-GigabitEthernet2/0/1] quit

[Sysname] irf-port 2

[Sysname-irf-port2] port group interface gigabitethernet 2/0/1

[Sysname-irf-port2] quit

[Sysname] interface gigabitethernet 2/0/1

[Sysname-GigabitEthernet2/0/1] undo shutdown

Related commands

irf-port