02-Virtual Technologies Command Reference

HomeSupportResource CenterReference GuidesCommand ReferencesH3C S12500X-AF & S12500-X & S9800 Switch Series Command References(R27xx)-6W10502-Virtual Technologies Command Reference
01-IRF commands
Title Size Download
01-IRF commands 196.44 KB

IRF commands

All IRF commands are available only on the default MDC, except for the commands in Table 1.

Table 1 IRF commands available on both default and non-default MDCs

Command category

Commands

Display commands

display irf link

MAD commands

mad arp enable

mad enable

mad nd enable

mad exclude interface

For more information about MDCs, see Virtual Technologies Configuration Guide.

chassis convert mode irf

Use chassis convert mode irf to enable IRF mode.

Use undo chassis convert mode to restore the default.

Syntax

chassis convert mode irf

undo chassis convert mode

Default

The device operates in standalone mode.

Views

System view

Predefined user roles

network-admin

Usage guidelines

CAUTION

CAUTION:

Restoring the standalone mode of a member device also removes that device from the IRF fabric. If you continue to use that device on the network, IP or bridge MAC conflict might occur. You must reconfigure the device or the IRF fabric to remove the conflict.

 

To set up an IRF fabric, place all member devices in IRF mode after you configure member IDs, priorities, and IRF port settings for the member devices. In standalone mode, a device cannot form an IRF fabric with other devices.

The device automatically reboots for the mode change to take effect. During the reboot, you may choose to have the system automatically convert the startup configuration file. Automatic configuration conversion prevents slot- or interface-related settings from becoming invalid. For example, the system adds member ID information to interface numbers and file paths in IRF mode.

IRF generates packets on a device in IRF mode even if the device does not form an IRF fabric with any other devices. To conserve system resources, set a device to standalone mode after removing it from an IRF fabric.

Examples

# Enable IRF mode.

<Sysname> system-view

[Sysname] chassis convert mode irf

The device will switch to IRF mode and reboot.

You are recommended to save the current running configuration and specify the configuration file for the next startup. Continue? [Y/N]:y

Do you want to convert the content of the next startup configuration file flash:/startup.cfg to make it available in IRF mode? [Y/N]:y

Now rebooting, please wait...

# Restore standalone mode.

<Sysname> system-view

[Sysname] undo chassis convert mode

The device will switch to stand-alone mode and reboot.

You are recommended to save the current running configuration and specify the configuration file for the next startup. Continue? [Y/N]:y

Do you want to convert the content of the next startup configuration file flash:/startup.cfg to make it available in stand-alone mode? [Y/N]:y

Now rebooting, please wait...

display irf

Use display irf to display IRF fabric information.

Syntax

display irf

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display IRF fabric information.

<Sysname> display irf

MemberID  Slot  Role   Priority  CPU-Mac         Description

 *+1      0     Master 1         0210-fc03-0007  -----

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

 

 * indicates the device is the master.

 + indicates the device through which the user logs in.

 

 The Bridge MAC of the IRF is: 3ce5-a6b8-3800

 Auto upgrade                : yes

 Mac persistent              : always

 Domain ID                   : 0

 Auto merge                  : no

Table 2 Command output

Field

Description

MemberID

IRF member ID:

·     ID of the master is prefixed with an asterisk (*) sign.

·     ID of the device where you are logged in is prefixed with a plus (+) sign.

Slot

MPU slot number.

Role

Role of the MPU in the IRF fabric:

·     Standby—Standby MPU for the global active MPU.

·     Master—Global active MPU.

·     Loading—Standby MPU for the global active MPU. The standby MPU is loading software images.

Priority

IRF member priority.

CPU-MAC

MAC address of the CPU on the MPU.

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.

Auto upgrade

Status of the software auto-update feature:

·     yes—Enabled.

·     no—Disabled.

MAC persistent

IRF bridge MAC persistence setting:

·     12 min—Bridge MAC address of the IRF fabric remains unchanged for 12 minutes after the address owner leaves.

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

·     no—Bridge MAC address of the current master replaces the original bridge MAC address as soon as the owner of the original address leaves.

Auto merge

Status of the auto-merge feature:

·     yes—Enabled.

·     no—Disabled.

Related commands

display irf configuration

display irf topology

display irf configuration

Use display irf configuration to display basic IRF settings for each member device.

Syntax

display irf configuration

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# (In standalone mode.) Display the basic IRF settings of the device.

<Sysname> display irf configuration

 MemberID Priority IRF-Port1                   IRF-Port2

 1        1        disable                     disable

# (In IRF mode.) Display basic IRF settings for all members.

<Sysname> display irf configuration

 MemberID  NewID  IRF-Port1                     IRF-Port2

  1        1      FortyGigE1/1/0/1              disable

                  FortyGigE1/1/0/2

  2        2      disable                       FortyGigE2/1/0/1

                                                FortyGigE2/1/0/2

Table 3 Command output

Field

Description

MemberID

Current member ID of the device.

Priority

Member priority.

This field is available when the device is operating in standalone mode.

NewID

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

This field is available when the device is operating in IRF mode.

IRF-Port1

Physical interfaces bound to IRF-port 1.

This field displays disable if no physical interfaces are bound to the IRF port.

IRF-Port2

Physical interfaces bound to IRF-port 2.

This field displays disable if no physical interfaces are bound to the IRF port.

 

Related commands

display irf

display irf topology

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

mdc-admin

mdc-operator

Examples

# Display IRF link information.

<Sysname> display irf link

Member 1

 IRF Port    Interface                           Status

 1           disable                             --

 2           FortyGigE1/3/0/1(MDC1)              UP

             FortyGigE1/5/0/1(MDC2)              ADM

             FortyGigE1/6/0/1(MDC3)              DOWN

Member 2

 IRF Port    Interface                           Status

 1           FortyGigE2/3/0/1(MDC1)              UP

             FortyGigE2/5/0/1(MDC2)              DOWN

             FortyGigE2/6/0/1(MDC3)              ADM

 2           disable                             --

Table 4 Command output

Field

Description

Member ID

IRF member ID.

IRF Port

IRF port number:

·     1—IRF-port 1.

·     2—IRF-port 2.

Interface

Physical interfaces bound to the IRF port, and their respective MDCs. This field displays disable if no physical interfaces have been bound to the IRF port.

Status

Link state of the IRF physical interface:

·     UP—The link is up.

·     DOWN—The link is down.

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

·     ABSENT—Interface module that hosts the interface is not present.

 

display irf topology

Use display irf topology to display IRF fabric topology information.

Syntax

display irf topology

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display the IRF fabric topology.

<Sysname> display irf topology

                           Topology Info

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

               IRF-Port1                  IRF-Port2

 MemberID   Link        neighbor      Link        neighbor     Belong To

 1          DOWN        ---           UP          2            000f-cbb8-1a82

 2          UP          1             DIS         ---          000f-cbb8-1a82

Table 5 Command output

Field

Description

IRF-Port1

Information about IRF-port 1, including its link state and neighbor.

IRF-Port2

Information about IRF-port 2, including its link state and neighbor.

MemberID

IRF member ID.

Link

Link state of the IRF port:

·     UP—The IRF link is up.

·     DOWN—The IRF link is down because the port has no physical link or has not been activated by the irf-port-configuration active command.

·     DIS—No physical interfaces have been bound to the IRF port.

·     TIMEOUT—IRF hello interval has timed out.

·     ISOLATE—The device is isolated from the IRF fabric. This issue might be caused by the following reasons:

¡     The IRF fabric does not support the device model.

¡     The maximum number of member devices has exceeded the upper limit.

neighbor

IRF member ID of the device connected to the IRF port.

This field displays three hyphens (---) if no device is connected to the port.

Belong To

IRF fabric that has the device, represented by the CPU MAC address of the master in the IRF fabric.

 

Related commands

display irf

display irf configuration

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 enabled.

MAD ND disabled.

MAD LACP disabled.

MAD BFD disabled.

# Display detailed MAD information.

<Sysname> display mad verbose

Multi-active recovery state: No

Excluded ports (user-configured):

  Bridge-Aggregation4

  Vlan-interface999

Excluded ports (system-configured):

  IRF physical interfaces:

    FortyGigE1/3/0/25

    FortyGigE1/3/0/26

    FortyGigE2/3/0/27

    FortyGigE2/3/0/28

  BFD MAD interfaces:

    FortyGigE1/3/0/10

    FortyGigE2/3/0/10

    Vlan-interface3

  Member interfaces of excluded interface Bridge-Aggregation 4:

    FortyGigE1/3/0/11

    FortyGigE2/3/0/11

MAD ARP disabled.

MAD ND disabled.

MAD LACP enabled interface: Bridge-Aggregation 1

  MAD status                 : Normal

  Member ID       Port                             MAD status

  1               FortyGigE1/3/0/1                 Normal

  2               FortyGigE2/3/0/1                 Normal

MAD BFD enabled interface: VLAN-interface 3

  MAD status                 : Normal

  Member ID   MAD IP address       Neighbor    MAD status

  1           192.168.1.1/24       2           Normal

  2           192.168.1.2/24       1           Normal

Table 6 Command output

Field

Description

MAD ARP enabled.

Status of ARP MAD.

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

MAD ND disabled.

Status of ND MAD.

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

MAD LACP disabled.

Status of LACP MAD.

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

MAD BFD disabled.

This field is supported only on the default MDC.

Status of BFD MAD.

This field displays MAD BFD enabled if BFD 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 service interfaces in the fabric except for the system- and user-excluded service interfaces.

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

Excluded ports (user-configured)

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

Excluded ports (system-configured)

Service interfaces set to not shut down by the system when the IRF fabric transits to the Recovery state. These service interfaces are not manually configured.

·     IRF physical interfaces.

·     BFD MAD interfaces, which are supported only on the default MDC:

¡     VLAN interfaces used for BFD MAD and the Layer 2 Ethernet ports in the VLANs.

¡     Layer 3 aggregate interfaces used for BFD MAD and their member ports.

¡     Management Ethernet ports used for BFD MAD.

·     Member interfaces of a Layer 2 aggregate interface if the aggregate interface is excluded from the MAD shutdown action.

·     Member interfaces of a Layer 3 aggregate interface if the aggregate interface is excluded from the MAD shutdown action.

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 ports 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. Values include Normal and Faulty.

MAD BFD enabled interface:

This field is supported only on the default MDC.

Layer 3 interface on which BFD MAD is enabled.

MAD status

This field is supported only on the default MDC.

BFD MAD operating status:

·     Normal—BFD MAD is operating correctly.

·     Faulty—BFD MAD is not operating correctly. Check the BFD MAD link for connectivity issues.

·     N/A—BFD MAD link status cannot be detected. If BFD MAD is enabled on a management Ethernet port, it is normal that this field displays N/A.

Member ID

MAD IP address

Neighbor

MAD status

This field is supported only on the default MDC.

BFD MAD details:

·     Member ID—IRF member ID of the local device.

·     MAD IP address—MAD IP address of a member device.

·     Neighbor—IRF member ID of the neighboring member device.

·     MAD status—BFD MAD link state. Values include Normal and Faulty.

easy-irf

Use easy-irf to bulk-configure basic IRF settings for an IRF member device.

Syntax

easy-irf [ member member-id [ renumber new-member-id ] domain domain-id [ priority priority ] [ irf-port1 interface-list1 ] [ irf-port2 interface-list2 ] ]

Views

System view

Predefined user roles

network-admin

Parameters

member member-id: Specifies the member ID of a member device. The value range for the member ID is 1 to 8. Member IDs available for a switch varies by switch model. Table 7 shows the IRF member IDs available for each switch model.

Table 7 IRF member ID and hardware compatibility matrix

Hardware

IRF member ID compatibility

S12500X-AF switch series with type-H service modules

1 to 8:

·     S12501X-AF

·     S12502X-AF

·     S12504X-AF

1, 3, 5, or 7:

·     S12508X-AF

·     S12512X-AF

·     S12516X-AF

S12500X-AF switch series with type-F service modules

1 or 2

S12500-X switch series

1 or 2

S9800 switch series

1 or 2

 

renumber new-member-id: Specifies a new member ID for the device. The value range for the member ID is 1 to 8.The member device automatically reboots for the new member ID to take effect. If you do not specify this option, the command does not change the member ID. For information about available member IDs for each switch model, see Table 7.

domain domain-id: Specifies an IRF domain ID in the range of 0 to 4294967295. Assign the same domain ID to all devices you are adding to the same IRF fabric.

priority priority: Specifies an IRF 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.

irf-port1 interface-list1: Specifies interfaces bound to IRF-port 1. The interface-list1 argument represents a space-separated list of up to 16 interface items. Each interface item specifies one interface in the interface-type interface-number form.

irf-port2 interface-list2: Specifies interfaces bound to IRF-port 2. A physical interface can be bound to only one IRF port. The interface-list2 argument represents a space-separated list of up to 16 interface items. Each interface item specifies one interface in the interface-type interface-number form.

Usage guidelines

This command is supported only in IRF mode.

This command bulk-configures basic IRF settings for a member device, including the member ID, domain ID, priority, and IRF port bindings.

The easy IRF feature provides the following configuration methods:

·     Interactive method—Enter the easy-irf command without parameters. The system will guide you to set the parameters step by step.

·     Non-interactive method—Enter the easy-irf command with parameters.

As a best practice, use the interactive method if you are new to IRF.

If you execute this command multiple times, the following settings take effect:

·     The most recent settings for the member ID, domain ID, and priority.

·     IRF port bindings added through repeated executions of the command.

When you specify physical interfaces for an IRF port, you must follow the IRF port binding requirements in Virtual Technologies Configuration Guide.

If you specify physical interfaces by using the interactive method, you must also follow these restrictions and guidelines:

·     Do not enter spaces between the interface type and interface number.

·     Use a comma (,) to separate two physical interfaces. No spaces are allowed between interfaces.

To remove an IRF physical interface from an IRF port, you must use the undo port group interface command in IRF port view.

Examples

# Bulk-configure basic IRF settings by using the non-interactive method. Change the member ID from 1 to 2, set the domain ID to 10, configure the member priority as 10, and bind FortyGigE 1/1/0/21 through FortyGigE 1/1/0/24 to IRF-port 1.

<Sysname> system-view

[Sysname] easy-irf member 1 renumber 2 domain 10 priority 10 irf-port1 fortygige 1/1/0/21 fortygige 1/1/0/22 fortygige 1/1/0/23 fortygige 1/1/0/24

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

                  Configuration summary for member 1

IRF new member ID: 2

IRF domain ID    : 10

IRF priority     : 10

IRF-port 1       : FortyGigE1/1/0/21, FortyGigE1/1/0/22

                   FortyGigE1/1/0/23, FortyGigE1/1/0/24

IRF-port 2       : Disabled

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

Are you sure to use these settings to set up IRF? [Y/N] y

Starting to configure IRF...

Configuration succeeded.

The device will reboot for the new member ID to take effect. Continue? [Y/N] y

# Bulk-configure basic IRF settings by using the interactive method. Change the member ID from 1 to 2, set the domain ID to 10, configure the member priority as 10, and bind FortyGigE 1/1/0/21 through FortyGigE 1/1/0/24 to IRF-port 1.

<Sysname> system-view

[Sysname] easy-irf

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

Welcome to use easy IRF.

To skip the current step, enter a dot sign (.).

To return to the previous step, enter a minus sign (-).

To use the default value (enclosed in []) for each parameter, press Enter without

entering a value.

To quit the setup procedure, press CTRL+C.

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

Select a member by its ID <1> [1]:1

Specify a new member ID <1~10> [1]: 2

Specify a domain ID <0~4294967295> [0]: 10

Specify a priority <1~32> [1]: 10

Specify IRF-port 1 bindings (a physical interface or a comma-separated physical

interface list)[Disabled]: fortygige1/1/0/21,fortygige1/1/0/22,fortygige1/1/0/23,fortygige1/1/0/24

Specify IRF-port 2 bindings (a physical interface or a comma-separated physical

interface list)[Disabled]:

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

                  Configuration summary for member 1

IRF new member ID: 2

IRF domain ID    : 10

IRF priority     : 10

IRF-port 1       : FortyGigE1/1/0/21, FortyGigE1/1/0/22

                   FortyGigE1/1/0/23, FortyGigE1/1/0/24

IRF-port 2       : Disabled

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

Are you sure to use these settings to set up IRF? [Y/N] y

Starting to configure IRF...

Configuration succeeded.

The device will reboot for the new member ID to take effect. Continue? [Y/N] y

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. The IRF fabric that has failed in the master election reboots automatically to complete the IRF fabric merge.

Views

System view

Predefined user roles

network-admin

Usage guidelines

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 the IRF fabrics that are merging.

This command is supported only in IRF mode. When you change the operating mode from IRF to standalone, the setting for this command is lost, regardless of whether you have saved the configuration. To disable IRF auto-merge after you change the operating mode from standalone to IRF, use the undo form of this command.

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

·     The IRF link recovers from a link failure.

·     The IRF physical interfaces of the member devices are connected after the interfaces are bound to IRF ports.

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

·     You bind a physical interface to an IRF port.

·     The interface has been connected to the peer IRF physical interface before the binding operation.

Examples

# Enable IRF auto-merge.

<Sysname> system-view

[Sysname] irf auto-merge enable

irf auto-update enable

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

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

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 is supported only in IRF mode. When you change the operating mode from IRF to standalone, the setting for this command is lost, regardless of whether you have saved the configuration. To disable software auto-update after you change the operating mode from standalone to IRF, use the undo form of this command.

This command automatically propagates the current software images of the global active MPU in the IRF fabric to any devices or MPUs you are adding to the IRF fabric.

Software auto-update takes effect on an MPU only when ISSU compatible upgrade is supported between the software versions of that MPU and the global active MPU. To identify whether the software versions support ISSU compatible upgrade, see ISSU compatibility information in the release notes for the device.

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

Examples

# Enable the software auto-update feature.

<Sysname> system-view

[Sysname] irf auto-update enable

irf domain

Use irf domain to assign a domain ID to the IRF fabric.

Use undo irf domain to restore the default.

Syntax

irf domain domain-id

undo irf domain

Default

The IRF domain ID is 0.

Views

System view

Predefined user roles

network-admin

Parameters

domain-id: Specifies a domain ID for the IRF fabric. The value range is 0 to 4294967295.

Usage guidelines

CAUTION

CAUTION:

Changing the IRF domain ID of an IRF member device will remove that member device from the IRF fabric. This member device will be unable to exchange IRF protocol packets with the remaining member devices in the IRF fabric.

 

This command is supported only in IRF mode. When you change the operating mode from IRF to standalone, the IRF domain setting is lost, regardless of whether you have saved the configuration.

One IRF fabric forms one IRF domain. IRF uses IRF domain IDs to uniquely identify IRF fabrics and prevent IRF fabrics from interfering with one another.

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 domain IDs for correct split detection. False detection causes IRF split.

An IRF fabric has only one IRF domain ID. You can change the IRF domain ID by using the following commands: irf domain, mad enable, mad arp enable, or mad nd enable. The IRF 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 domain ID in one MDC, the IRF domain IDs in all other MDCs change automatically.

Examples

# Set the IRF domain ID to 10.

<Sysname> system-view

[Sysname] irf domain 10

irf link-delay

Use irf link-delay to set a delay for the IRF ports to report a link down event.

Use undo irf link-delay to restore the default.

Syntax

irf link-delay interval

undo irf link-delay

Default

The delay time is 4 seconds.

Views

System view

Predefined user roles

network-admin

Parameters

interval: Sets the IRF link down report delay, in the range of 0 to 10000 milliseconds. If the interval is set to 0, link down events are reported without any delay.

Usage guidelines

This command is supported only in IRF mode. When you change the operating mode from IRF to standalone, the command configuration is lost, regardless of whether you have saved the configuration.

When you configure the IRF link down report delay, follow these restrictions and guidelines:

·     Make sure the IRF link down report delay is shorter than the heartbeat or hello timeout settings of upper-layer protocols (for example, CFD and OSPF). If the report delay is longer than the timeout setting of a protocol, unnecessary recalculations might occur.

·     Set the delay to 0 seconds in the following situations:

¡     The IRF fabric requires a fast master/subordinate or IRF link switchover.

¡     The RRPP, BFD, or GR feature is used.

¡     You want to shut down an IRF physical interface or reboot an IRF member device. (After you complete the operation, reconfigure the delay depending on the network condition.)

Examples

# Set the IRF link down report delay to 300 milliseconds.

<Sysname> system-view

[Sysname] irf link-delay 300

irf mac-address

Use irf mac-address to specify a MAC address as the IRF bridge MAC address.

Use undo irf mac-address to restore the default.

Syntax

irf mac-address mac-address

undo irf mac-address

Default

An IRF fabric uses the bridge MAC address of the master device as the IRF bridge MAC address.

Views

System view

Predefined user roles

network-admin

Parameters

mac-address: Specifies a MAC address in the format of H-H-H. The MAC address cannot be the all-zero or all-F MAC address, or a multicast MAC address. You can omit the consecutive zeros at the beginning of each segment. For example, you can enter f-e2-1 for 000f-00e2-0001.

Usage guidelines

CAUTION

CAUTION:

IRF bridge MAC address change will cause transient traffic disruption.

 

Before you replace an IRF fabric entirely, you can configure the new IRF fabric with the bridge MAC address of the existing IRF fabric to minimize service interruption.

This command is supported only in IRF mode. When you change the operating mode from IRF to standalone, the IRF bridge MAC address configuration is lost, regardless of whether you have saved the configuration.

You must make sure the IRF bridge MAC address is unique on the switched LAN after the replacement.

After you specify an IRF bridge MAC address, the IRF fabric always uses the specified address as the IRF bridge MAC address.

If the IRF fabric splits after you configure the IRF bridge MAC address, both of the split IRF fabrics use the configured bridge MAC address as the IRF bridge MAC address.

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.

After IRF fabrics merge, the merged IRF fabric uses the bridge MAC address of the merging IRF fabric that won the master election as the IRF bridge MAC address.

Examples

# Configure the IRF fabric to use c4ca-d9e0-8c3c as the IRF bridge MAC address.

<Sysname> system-view

[Sysname] irf mac-address c4ca-d9e0-8c3c

irf mac-address persistent

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

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

Syntax

irf mac-address persistent { always | timer }

undo irf mac-address persistent

Default

The IRF bridge MAC address does not change 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 the fabric.

timer: Enables the IRF bridge MAC address to remain unchanged for 12 minutes after the address owner leaves. If the owner rejoins the IRF fabric with the time limit, the IRF bridge MAC address does not change. If the owner does not rejoin the IRF fabric within the time limit, the IRF fabric uses the bridge MAC address of the current master as the bridge MAC address.

Usage guidelines

CAUTION

CAUTION:

IRF bridge MAC address change will cause transient traffic disruption.

 

This command is supported only in IRF mode. When you change the operating mode from IRF to standalone, the bridge MAC persistence setting is lost, regardless of whether you have saved the configuration.

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.

This command does not take effect if the IRF bridge MAC address is configured by using the irf mac-address mac-address command.

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. In addition, do not specify an IRF bridge MAC address by using the irf mac-address mac-address command.

If the IRF fabric uses a daisy-chain topology and has aggregate links with upstream or downstream devices, do not execute the undo irf mac-address persistent command. Use of this command might result in transmission delay or packet loss after the address owner leaves or reboots.

If the IRF fabric has multichassis aggregate links, do not use the undo irf mac-address persistent command. Use of this command might cause traffic disruption.

By default, an IRF fabric uses the bridge MAC address of the master device as its bridge MAC address.

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.

Examples

# Enable the IRF bridge MAC address to persist forever.

<Sysname> system-view

[Sysname] irf mac-address persistent always

irf member

Use irf member to assign a member ID to the device in standalone mode.

Use undo irf member to restore the default.

Syntax

irf member member-id

undo irf member

Default

The member ID is 1.

Views

System view

Predefined user roles

network-admin

Parameters

member-id: Assigns an IRF member ID to the device. The value range for this argument is 1 to 8. Member IDs available for a switch varies by switch model. For information about available member IDs for each switch model, see Table 7.

Usage guidelines

Assign an IRF member ID to a device before enabling IRF mode. The member ID takes effect after IRF mode is enabled. This member ID must be unique among all IRF member devices.

To change the member ID of a device in IRF mode, use the irf member renumber command.

Examples

# (In standalone mode.) Assign member ID 2 to the device.

<Sysname> system-view

[Sysname] irf member 2

Related commands

irf member renumber

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 the ID of an IRF member.

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

Usage guidelines

This command is supported only in IRF mode. When you change the operating mode from IRF to standalone, the IRF member description is lost, regardless of whether you have saved the configuration.

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 an IRF member ID. The value range for IRF member IDs is 1 to 8. Member IDs available for a switch varies by switch model. For information about available member IDs for each switch model, see Table 7.

priority: Sets 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.

Usage guidelines

This command is supported only in IRF mode. To assign an IRF priority to a device in standalone mode, use the irf priority command.

The new priority setting takes effect at the next master election, but it does not trigger a master election.

Examples

# Set the priority of IRF member 2 to 32.

<Sysname> system-view

[Sysname] irf member 2 priority 32

Related commands

irf priority

irf member renumber

Use irf member renumber to change the 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 device uses the member ID that is set in standalone mode.

Views

System view

Predefined user roles

network-admin

Parameters

member-id: Specifies the ID of an IRF member. The value range for IRF member IDs is 1 to 8. Member IDs available for a switch varies by switch model. For information about available member IDs for each switch model, see Table 7.

new-member-id: Assigns a new ID to the IRF member. The value range for IRF member IDs is 1 to 8. For information about available member IDs for each switch model, see Table 7.

Usage guidelines

CAUTION

CAUTION:

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.

 

To have the new ID take effect, you must reboot the IRF member. To cancel the member ID change before you reboot the member device, use the undo irf member renumber command. In the command, set the new member ID to be the same as the old member ID.

When adding a device into an IRF fabric, you must assign a unique IRF member ID to the device. If its IRF member ID has been used in the IRF fabric, the device cannot join the IRF fabric.

Interchanging member IDs between IRF member devices might cause undesirable configuration changes and data loss. For example, the IRF member IDs of Device A and Device B are 2 and 3, respectively. After you interchange their member IDs, their port settings also interchange.

To set the member ID of a device in standalone mode, use the irf member command.

Examples

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

<Sysname> display irf

[Sysname] irf member 1 renumber 2

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

# Before rebooting the device, cancel the change in the preceding example.

[Sysname] undo irf member 1 renumber

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

If you reboot the device after executing the irf member 1 renumber 2 command, the device member ID changes to 2 at system reboot. Using undo irf member 1 renumber cannot restore the member ID to 1. You must use the irf member 2 renumber 1 command to reconfigure the member ID.

Related commands

irf member

irf priority

Use irf priority to assign an IRF member priority to a device in standalone mode.

Use undo irf priority to restore the default.

Syntax

irf priority priority

undo irf priority

Default

The IRF member priority is 1.

Views

System view

Predefined user roles

network-admin

Parameters

priority: Specifies an IRF member priority value 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.

Usage guidelines

The member priority configured in standalone mode takes effect after you enable IRF mode.

To change the member priority of a device in IRF mode, use the irf member priority command. The new priority setting takes effect at the next master election, but it does not trigger a master election.

Examples

# (In standalone mode.) Assign IRF member priority 32 to the device.

[Sysname] system-view

[Sysname] irf priority 32

Related commands

irf member priority

irf-port

Use irf-port to enter IRF port view.

Use undo irf-port to remove all port bindings on an IRF port.

Syntax

In standalone mode:

irf-port irf-port-number

undo irf-port irf-port-number

In IRF mode:

irf-port member-id/irf-port-number

undo irf-port member-id/irf-port-number

Views

System view

Predefined user roles

network-admin

Parameters

member-id: Specifies an IRF member device by its member ID.

irf-port-number: Specifies an IRF port on the member device. The irf-port-number argument represents the IRF port index and must be 1 or 2.

Usage guidelines

To bind physical interfaces to an IRF port, you must enter IRF port view.

Examples

# (In standalone mode.) Enter IRF-port 1 view.

<Sysname> system-view

[Sysname] irf-port 1

[Sysname-irf-port1]

# (In IRF mode.) Enter IRF-port 2/1 view.

<Sysname> system-view

[Sysname] irf-port 2/1

[Sysname-irf-port2/1]

Related commands

port group interface

irf-port-configuration active

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

Syntax

irf-port-configuration active

Views

System view

Predefined user roles

network-admin

Usage guidelines

After connecting the physical interfaces between two devices and binding them to the correct IRF ports, you must use this command to activate the settings on the IRF ports. This command merges the two devices 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 physical interfaces to an IRF port after an IRF fabric is formed.

Examples

To configure and activate IRF-port 1/2 when the port is in DIS state:

# Bind FortyGigE 1/1/0/27 to IRF-port 1/2.

<Sysname> system-view

[Sysname] interface fortygige 1/1/0/27

[Sysname-FortyGigE1/1/0/27] shutdown

[Sysname-FortyGigE1/1/0/27] quit

[Sysname] irf-port 1/2

[Sysname-irf-port1/2] port group interface fortygige 1/1/0/27

You must perform the following tasks for a successful IRF setup:

Save the configuration after completing IRF configuration.

Execute the "irf-port-configuration active" command to activate the IRF ports.

[Sysname-irf-port1/2] quit

[Sysname] interface fortygige 1/1/0/27

[Sysname-FortyGigE1/1/0/27] undo shutdown

[Sysname-FortyGigE1/1/0/27] quit

# Save the configuration so the IRF port settings can take effect after the device reboots.

[Sysname] save

The current configuration will be written to the device. Are you sure? [Y/N]:y

Please input the file name(*.cfg)[flash:/startup.cfg]

(To leave the existing filename unchanged, press the enter key):

flash:/startup.cfg exists, overwrite? [Y/N]:y

Validating file. Please wait............................

Saved the current configuration to mainboard device successfully.

# Activate the IRF port settings.

[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

Management Ethernet interface view

VLAN interface view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

Do not configure ARP MAD together with LACP MAD or BFD 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.

·     As a best practice, 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 Layer 2—LAN Switching 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 domain IDs for correct split detection.

 

When you configure ARP MAD that uses management Ethernet ports, follow these restrictions and guidelines:

 

Category

Restrictions and guidelines

Management Ethernet ports for ARP MAD

Connect a management Ethernet port on each member device to the common Ethernet ports on the intermediate device. To avoid ARP MAD failure caused by an active/standby MPU switchover, connect the management Ethernet port on each MPU to the intermediate device.

ARP MAD VLAN

On the intermediate device, create a VLAN for ARP MAD, and assign the ports used for ARP MAD to the VLAN. On the IRF fabric, you do not need to assign the management Ethernet ports to the VLAN.

ARP MAD and feature configuration

·     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 domain IDs for correct split detection.

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

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

You can execute the mad arp enable command on any MDCs. If you change the IRF domain ID in one MDC, the new IRF domain ID takes effect immediately on all MDCs.

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 bfd enable

Use mad bfd enable to enable BFD MAD.

Use undo mad bfd enable to disable BFD MAD.

Syntax

mad bfd enable

undo mad bfd enable

Default

BFD MAD is disabled.

Views

VLAN interface view

Layer 3 aggregate interface view

Management Ethernet interface view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

Configuring BFD MAD that uses management Ethernet ports is supported only on the LSXM1SUP02B1 MPU.

This command is supported only on the default MDC.

Do not configure BFD MAD together with ARP MAD or ND MAD, because they handle collisions differently.

When you configure BFD MAD on a VLAN interface, follow these guidelines:

 

Category

Restrictions and guidelines

BFD MAD VLAN

·     Do not enable BFD 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 BFD MAD.

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

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

·     Make sure the IRF fabrics on the network use different BFD MAD VLANs.

·     Make sure the BFD MAD VLAN contains only ports on the BFD MAD links. Exclude a port from the BFD MAD VLAN if that port is not on a BFD MAD link. If you have assigned that port to all VLANs by using the port trunk permit vlan all command, use the undo port trunk permit command to exclude that port from the BFD MAD VLAN.

BFD MAD VLAN and feature compatibility

Do not use the BFD MAD VLAN for any purposes other than configuring BFD MAD.

·     Use only the mad bfd enable and mad ip address commands on the BFD MAD-enabled VLAN interface. If you configure other features, both BFD MAD and other features on the interface might run incorrectly.

·     Disable the spanning tree feature on any Layer 2 Ethernet ports in the BFD MAD VLAN. The MAD feature is mutually exclusive with the spanning tree feature.

·     To guarantee performance of the BFD MAD VLAN, make sure the following subinterfaces do not use a subinterface number the same as the VLAN interface number:

¡     Layer 3 Ethernet subinterfaces.

¡     Layer 3 aggregate subinterfaces.

MAD IP address

·     To avoid network issues, only use the mad ip address command to configure IP addresses on the BFD MAD-enabled VLAN interface. Do not configure an IP address by using the ip address command or configure a VRRP virtual address on the BFD MAD-enabled VLAN interface.

·     Make sure all the MAD IP addresses are on the same subnet.

When you configure BFD MAD that uses management Ethernet ports, follow these restrictions and guidelines:

 

Category

Restrictions and guidelines

Management Ethernet ports for BFD MAD

Connect a management Ethernet port on each member device to the common Ethernet ports on the intermediate device. To avoid BFD MAD failure caused by an active/standby MPU switchover, connect the management Ethernet port on each MPU to the intermediate device.

BFD MAD VLAN

·     On the intermediate device, create a VLAN for BFD MAD, and assign the ports used for BFD MAD to the VLAN. On the IRF fabric, you do not need to assign the management Ethernet ports to the VLAN.

·     Make sure the IRF fabrics on the network use different BFD MAD VLANs.

·     Make sure the BFD MAD VLAN on the intermediate device contains only ports on the BFD MAD links.

MAD IP address

·     Use the mad ip address command instead of the ip address command to configure MAD IP addresses on the BFD MAD-enabled management Ethernet ports.

·     Make sure all the MAD IP addresses are on the same subnet.

When you configure BFD MAD on a Layer 3 aggregate interface, follow these restrictions and guidelines:

 

Category

Restrictions and guidelines

BFD MAD-enabled Layer 3 aggregate interface

Make sure the Layer 3 aggregate interface operates in static aggregation mode.

BFD MAD VLAN

·     On the intermediate device (if any), assign the ports on the BFD MAD links to the same VLAN. Do not assign the ports to an aggregate interface. If the ports are hybrid ports, make sure these ports are untagged members of their PVIDs.

·     If the intermediate device acts as a BFD MAD intermediate device for multiple IRF fabrics, assign different BFD MAD VLANs to the IRF fabrics.

·     Do not use the BFD MAD VLAN on the intermediate device for any purposes other than BFD MAD.

·     Make sure the BFD MAD VLAN on the intermediate device contains only ports on the BFD MAD links. Exclude a port from the BFD MAD VLAN if that port is not on a BFD MAD link. If you have assigned that port to all VLANs by using the port trunk permit vlan all command, use the undo port trunk permit command to exclude that port from the BFD MAD VLAN.

BFD MAD-enabled Layer 3 aggregate interface and feature compatibility

Use only the mad bfd enable and mad ip address commands on the BFD MAD-enabled interface. If you configure other features, both BFD MAD and other features on the interface might run incorrectly.

MAD IP address

·     To avoid network issues, only use the mad ip address command to configure IP addresses on the BFD MAD-enabled interface. Do not configure an IP address by using the ip address command or configure a VRRP virtual address on the BFD MAD-enabled interface.

·     Make sure all the MAD IP addresses are on the same subnet.

Examples

# Enable BFD MAD on VLAN-interface 3.

<Sysname> system-view

[Sysname] interface vlan-interface 3

[Sysname-Vlan-interface3] mad bfd enable

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

mdc-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 an H3C device that supports extended LACPDUs for MAD 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 domain IDs for correct split detection. False detection causes IRF split.

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

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

You can execute the mad enable command on any MDCs. If you change the IRF domain ID in one MDC, the new IRF domain ID takes effect immediately on all MDCs.

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.

# Enable LACP MAD on Route-Aggregation 1, a Layer 3 dynamic aggregate interface.

<Sysname> system-view

[Sysname] interface route-aggregation 1

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

[Sysname-Route-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 service 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 service 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

Except for the service interfaces automatically excluded by the system, all service interfaces are shut down when the IRF fabric transits to the Recovery state. The system automatically excludes the following service interfaces from being shut down:

·     IRF physical interfaces.

·     Interfaces used for BFD MAD.

·     Member interfaces of an aggregate interface if the aggregate interface is excluded from being shut down.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

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

Usage guidelines

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

The service interfaces that have been shut down by MAD come up when the member devices reboot to join the recovered IRF fabric. If the active IRF fabric fails before the IRF link is recovered, use the mad restore command on the inactive IRF fabric to recover the inactive IRF fabric. This command also brings up all service interfaces that were shut down by MAD.

Examples

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

<Sysname> system-view

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

Related commands

mad restore

mad ip address

Use mad ip address to assign a MAD IP address to an IRF member device for BFD MAD.

Use undo mad ip address to delete the MAD IP address for an IRF member device.

Syntax

mad ip address ip-address { mask | mask-length } member member-id

undo mad ip address ip-address { mask | mask-length } member member-id

Default

No MAD IP address is configured for an IRF member device.

Views

VLAN interface view

Layer 3 aggregate interface view

Management Ethernet interface view

Predefined user roles

network-admin

mdc-admin

Parameters

ip-address: Specifies an IP address in dotted decimal notation.

mask: Specifies a subnet mask in decimal dotted notation.

mask-length: Specifies a subnet mask in length, in the range of 0 to 32.

member member-id: Specifies the ID of an IRF member.

Usage guidelines

Configuring BFD MAD that uses management Ethernet ports is supported only on the LSXM1SUP02B1 MPU.

This command is supported only on the default MDC.

To use BFD MAD, configure a MAD IP address for each IRF member. Make sure all the MAD IP addresses are on the same subnet.

Do not configure a MAD IP address by using the ip address command or configure a VRRP virtual address on the BFD MAD-enabled port or interface.

The master attempts to establish BFD sessions with other member devices by using its MAD IP address as the source IP address.

·     If the IRF fabric is integrated, only the MAD IP address of the master takes effect. The master cannot establish a BFD session with any other member. If you execute the display bfd session command, the state of the BFD sessions is Down.

·     When the IRF fabric splits, the IP addresses of the masters in the partitioned IRF fabrics take effect. The masters can establish a BFD session. If you execute the display bfd session command, the state of the BFD session between the two devices is Up.

Examples

# Assign a MAD IP address to IRF member 1 on VLAN-interface 3.

<Sysname> system-view

[Sysname] interface vlan-interface 3

[Sysname-Vlan-interface3] mad ip address 192.168.0.1 255.255.255.0 member 1

# Assign a MAD IP address to IRF member 2 on VLAN-interface 3.

[Sysname-Vlan-interface3] mad ip address 192.168.0.2 255.255.255.0 member 2

Related commands

mad bfd enable

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

mdc-admin

Usage guidelines

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

When you configure ND MAD settings, 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 Layer 2—LAN Switching 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 domain IDs for correct split detection.

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

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

You can execute the mad nd enable command on any MDCs. If you change the IRF domain ID in one MDC, the new IRF domain ID takes effect immediately on all MDCs.

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

If the active IRF fabric has failed 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 physical interface to an IRF port.

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

Syntax

port group [ mdc mdc-name ] interface interface-type interface-number [ mode enhanced ]

undo port group [ mdc mdc-name ] interface interface-name

Default

No physical interfaces are bound to an IRF port.

Views

IRF port view

Predefined user roles

network-admin

Parameters

mdc mdc-name: Specifies an MDC name, a case-sensitive string of 1 to 15 characters. If a physical interface belongs to a non-default MDC, you must specify the MDC name when you bind the physical interface to an IRF port. If a physical interface belongs to the default MDC, you do not need to specify the MDC name when you bind the physical interface to an IRF port.

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

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

mode enhanced: Sets the binding mode to enhanced. The binding mode is always the enhanced mode regardless of whether you specify the keywords.

Usage guidelines

CAUTION

CAUTION:

Use the undo port group interface command with caution. If the physical interface is the only up member interface of the IRF port, the IRF fabric will split after you remove the binding.

 

Execute this command multiple times to bind multiple physical interfaces to an IRF port. You can bind a maximum of 16 physical interfaces to an IRF port.

The MDC settings might lose effect after the device reboots to join an IRF fabric. As a best practice, create MDCs and bind the physical interfaces on non-default MDCs to an IRF port only after the IRF fabric is formed.

In IRF mode, use the shutdown command to shut down a physical interface before you bind it to or remove it from an IRF port. To bring up the physical interface after a binding or binding removal operation, use the undo shutdown command. In standalone mode, the shutdown and undo shutdown operations are not required.

The system does not dynamically remove IRF port bindings when IRF links are lost, for example, because an interface card is removed. To remove IRF port bindings, you must use the undo port group interface command.

For more information about IRF port binding requirements, see Virtual Technologies Configuration Guide.

Examples

# (In standalone mode.) Bind FortyGigE 1/0/1 to IRF-port 1.

<Sysname> system-view

[Sysname] irf-port 1

[Sysname-irf-port1] port group interface fortygige 1/0/1

# (In IRF mode.) Bind FortyGigE 1/1/0/1 to IRF-port 1/1 on IRF member 1.

<Sysname> system-view

[Sysname] interface fortygige 1/1/0/1

[Sysname-FortyGigE1/1/0/1] shutdown

[Sysname-FortyGigE1/1/0/1] quit

[Sysname] irf-port 1/1

[Sysname-irf-port1/1] port group interface fortygige 1/1/0/1

[Sysname-irf-port1/1] quit

[Sysname] interface fortygige 1/1/0/1

[Sysname-FortyGigE1/1/0/1] undo shutdown

Related commands

irf-port

  • Cloud & AI
  • InterConnect
  • Intelligent Computing
  • Security
  • SMB Products
  • Intelligent Terminal Products
  • Product Support Services
  • Technical Service Solutions
All Services
  • Resource Center
  • Policy
  • Online Help
All Support
  • Become a Partner
  • Partner Resources
  • Partner Business Management
All Partners
  • Profile
  • News & Events
  • Online Exhibition Center
  • Contact Us
All About Us
新华三官网