HPE FlexFabric 7900 Series Installation manual

HPE FlexFabric 7900 Switch Series
IRF
Command Reference
Part number: 5998-8237s
Software version: Release 231x
Document version: 6W101-20151113

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i
Contents
IRF commands································································································1
chassis convert mode irf ····························································································································1
display irf····················································································································································2
display irf configuration ······························································································································3
display irf link··············································································································································4
display irf topology ·····································································································································5
display mad················································································································································6
irf auto-merge enable·································································································································8
irf auto-update enable································································································································9
irf domain ·················································································································································10
irf link-delay··············································································································································11
irf mac-address ········································································································································11
irf mac-address persistent always············································································································12
irf member················································································································································13
irf member description······························································································································14
irf member priority····································································································································14
irf member renumber································································································································15
irf priority ··················································································································································16
irf-port member-id/port-number················································································································17
irf-port port-number··································································································································18
irf-port-configuration active·······················································································································18
mad bfd enable ········································································································································19
mad enable ··············································································································································21
mad exclude interface······························································································································22
mad ip address·········································································································································23
mad restore··············································································································································24
port group interface··································································································································24
Document conventions and icons·································································26
Conventions·····················································································································································26
Network topology icons····································································································································27
Support and other resources ········································································28
Accessing Hewlett Packard Enterprise Support ······························································································28
Accessing updates···········································································································································28
Websites ··················································································································································29
Customer self repair·································································································································29
Remote support········································································································································29
Documentation feedback ·························································································································29
Index·············································································································30

1
IRF commands
The HPE 7904 (JG682A) or HPE 7904 TAA (JH122A) switch uses one built-in MPU (slot 0) and the
HPE 7910 (JG841A) or HPE 7910 TAA (JH123A) switch uses two removable switching fabric
modules (slots 10 and 11) for switching and control.
Unless otherwise stated, the term "MPU" collectively refers to the switching fabric modules on the
HPE 7910 switch and the built-in MPU on the HPE 7904 switch.
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 bfd enable
mad enable
mad exclude interface
mad ip address
For more information about MDCs, see Fundamentals Configuration Guide.
chassis convert mode irf
Use chassis convert mode irf to enable IRF mode.
Use undo chassis convert mode to restore standalone mode.
Syntax
chassis convert mode irf
undo chassis convert mode
Default
The device operates in standalone mode.
Views
System view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
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.
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 you
remove the device from an IRF fabric.
Examples
# Enable IRF mode.
<Sysname> system-view

2
[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
Please wait...
Saving the converted configuration file to the main board succeeded.
Slot 1:
Saving the converted configuration file succeeded.
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
Please wait...
Saving the converted configuration file to the main board succeeded.
Chassis 2 Slot 1:
Saving the converted configuration file succeeded.
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
mdc-admin
mdc-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.

3
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. The global active MPU automatically pushes its
software images to the MPUs you are adding to the IRF fabric.
•no—Disabled. You must manually make sure the joining MPUs
use the same software images as the global active MPU. If the
software images are different, the joining MPUs cannot be added
to the IRF fabric.
MAC persistent
IRF bridge MAC persistence setting:
•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
State of the auto-merge feature:
•yes—Enabled. The IRF fabric automatically reboots its member
devices when it fails in the master election during an IRF fabric
merge.
•no—Disabled. Manual reboot is required to complete an IRF fabric
merge.
display irf configuration
Use display irf configuration to display basic IRF settings on each IRF member device.

4
Syntax
display irf configuration
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-operator
Examples
# (In standalone mode.) Display the basic IRF settings of the device.
<Sysname> display irf configuration
MemberID Priority IRF-Port1 IRF-Port2
-- 1 disable disable
# (In IRF mode.) Display all members' basic IRF settings.
<Sysname> display irf configuration
MemberID NewID IRF-Port1 IRF-Port2
1 1 FortyGigE1/8/0/1 disable
FortyGigE1/8/0/2
2 2 disable FortyGigE2/8/0/1
FortyGigE2/8/0/2
Table 3 Command output
Field Description
MemberID Current member ID of the device.
This field displays two hyphens (--) if no member ID is assigned.
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. The bindings take effect at reboot.
This field displays disable if no physical interfaces are bound to the IRF port.
IRF-Port2 Physical interfaces bound to IRF-port 2. The bindings take effect at reboot.
This field displays disable if no physical interfaces are bound to the IRF port.
display irf link
Use display irf link to display IRF link information.
Syntax
display irf link
Views
Any view

5
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 FortyGigE1/9/0/1(MDC1) UP
FortyGigE1/9/0/2(MDC1) UP
FortyGigE1/9/0/3(MDC1) DOWN
FortyGigE1/9/0/4(MDC1) ADM
2 disable --
Member 2
IRF Port Interface Status
1 disable --
2 FortyGigE2/8/0/1(MDC2) UP
FortyGigE2/8/0/2(MDC2) UP
FortyGigE2/8/0/3(MDC2) DOWN
FortyGigE2/8/0/4(MDC2) ADM
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 IRF physical interfaces:
•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

6
Views
Any view
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-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 UP 2 DIS --- 00e0-fc0f-8c0f
2 DIS --- UP 1 00e0-fc0f-8c0f
Figure 1 IRF topology
Table 5 Command output
Field Description
IRF-Port 1 Information about IRF-port 1, including its link state and neighbor.
IRF-Port 2 Information about IRF-port 2, including its link state and neighbor.
Link
Link state of the IRF port:
•UP—The IRF link is up.
•DOWN—The IRF link is down.
•DIS—No physical interfaces have been bound to the IRF port.
•TIMEOUT—IRF hello interval has timed out.
neighbor IRF member ID of the device connected to the IRF port.
If no device is connected to the IRF port, this field displays three hyphens
(---).
Belong To IRF fabric that has the device, represented by the CPU MAC address of the
master in the IRF fabric.
display mad
Use display mad to display MAD status and settings.
Syntax
display mad [ verbose ]
Views
Any view

7
Predefined user roles
network-admin
network-operator
mdc-admin
mdc-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.
MAD BFD disabled.
# Display detailed MAD information.
<Sysname> display mad verbose
Multi-active recovery state: No
Excluded ports(user-configured):
FortyGigE2/1/0/2
FortyGigE2/1/0/3
Excluded ports(system-configured):
FortyGigE1/9/0/1
FortyGigE1/9/0/2
FortyGigE1/9/0/3
FortyGigE1/9/0/4
FortyGigE2/9/0/1
FortyGigE2/9/0/2
FortyGigE2/9/0/3
FortyGigE2/9/0/4
MAD LACP enabled interface: Bridge-Aggregation 1
MAD status : Normal
Member ID Port MAD status
1 FortyGigE1/2/0/1 Normal
2 FortyGigE2/2/0/1 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 disabled. ARP MAD is not supported in the current software version.
MAD ND disabled. ND MAD is not supported in the current software version.

8
Field Description
MAD LACP enabled. Status of LACP MAD:
•Enabled.
•Disabled.
MAD BFD disabled. Status of BFD MAD:
•Enabled.
•Disabled.
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 physical ports in the
fabric except for the IRF physical interfaces and ports 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) Ports manually configured to not shut down when the IRF fabric transits
to the Recovery state.
Excluded
ports(system-configured) Ports set to not shut down by default when the IRF fabric transits to the Recovery state.
MAD status
MAD operating status:
•Normal—The MAD mechanism is operating correctly.
•Faulty—The MAD mechanism is not operating correctly. Check
the interface or port for connectivity or configuration problems. For
example, you can check whether all member devices have
member ports used for LACP MAD.
•N/A—MAD link status cannot be detected. This field always
displays N/A if BFD MAD is enabled on a management Ethernet
port.
Member ID IRF member ID of the local device.
Port Member ports of the aggregate interface used for LACP MAD.
Neighbor IRF member ID of the neighbor member device.
irf auto-merge enable
Use irf auto-merge enable to enable IRF auto-merge. This command enables an IRF fabric to
automatically reboot its member devices if it fails in the master election during an IRF fabric 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

9
mdc-admin
Usage guidelines
For a successful merge, make sure IRF auto-merge is enabled on both IRF fabrics that are
merging.
This command is available 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 any of 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.
If the IRF auto-merge feature does not take effect, you must save the running configuration, and
then follow the system instructions to manually reboot one or multiple member devices.
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
mdc-admin
Usage guidelines
This command is available 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 master MPU in the IRF
fabric to any MPUs you are adding to the IRF fabric.

10
To ensure a successful software update, verify that the new 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 MPU deletes the current software images automatically. If the reclaimed space is still insufficient,
the MPU cannot complete the auto-update. You must reboot the device that holds the MPU, and
then access the BootWare menus to delete files.
You must manually update the new MPU with the software images running on the IRF fabric in the
following situations:
•Software auto-update is disabled.
•Software auto-update fails to update software. This situation might occur if the IRF fabric
cannot identify the software version used on the new MPU.
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 an IRF fabric.
Use undo irf domain to restore the default IRF domain setting.
Syntax
irf domain domain-id
undo irf domain
Default
The IRF domain ID is 0.
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
domain-id: Specifies a domain ID for the IRF fabric. The value range is 0 to 4294967295.
Usage guidelines
This command is available 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 or BFD 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 irf
domain or mad enable command. The IRF domain IDs configured by using these commands
overwrite each other.
In an MDC environment, the irf domain command is available only on the default MDC. The mad
enable command is available on all MDCs. If you change the IRF domain ID in one MDC, the IRF
domain IDs in all other MDCs change automatically.

11
Examples
# Set the IRF domain ID to 30.
<Sysname> system-view
[Sysname] irf domain 30
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 IRF link down event report delay is 4000 milliseconds (4 seconds).
Views
System view
Predefined user roles
network-admin
mdc-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 available 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, VRRP 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 BFD or GR feature is used.
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 configure the IRF bridge MAC address.
Use undo irf mac-address to restore the default.

12
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:
IRF bridge MAC address change causes transient traffic disruption.
This command is available in IRF mode and in Release 2138 and later versions.
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.
On a switched LAN, the IRF bridge MAC address must be unique.
When IRF fabrics merge, IRF ignores the configured IRF bridge MAC address and only checks the
bridge MAC address of each member device in the IRF fabrics. IRF merge fails if any of the
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 whose master has the higher priority as the IRF bridge MAC address.
If an IRF fabric splits after you configure the IRF bridge MAC address, both the split IRF fabrics use
the configured bridge MAC address 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 always
Use irf mac-address persistent always to enable the IRF fabric to retain the IRF bridge MAC
address after the address owner leaves.
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
undo irf mac-address persistent

13
Default
Bridge MAC address of the IRF fabric does not change after the address owner leaves.
Views
System view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
This command is available 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.
This command does not take effect if the IRF bridge MAC address is configured by using the irf
mac-address mac-address command.
Depending on the network condition, enable the IRF fabric to retain or change its bridge MAC
address after the address owner leaves.
On a switched LAN, the bridge MAC address must be unique for correct traffic transmission.
IRF fabrics cannot merge if they contain member devices that have the same bridge MAC address.
Examples
# Enable the IRF bridge MAC address to be permanent.
<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 device operates in standalone mode and does not have a member ID.
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
member-id: Assigns an IRF member ID to the device. The value range for this argument is 1 to 4.
However, the assigned IRF member ID must be 1 or 2. If you use 3 or 4, the 7900 IRF fabric cannot
be set up.

14
Usage guidelines
You must 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 member-id renumber
new-member-id command. The new member ID takes effect at reboot.
Examples
# (In standalone mode.)Assign member ID 2 to the device.
<Sysname> system-view
[Sysname] irf member 2
Info: Member ID change will take effect after the member reboots and operates in IRF mode.
Related commands
irf member renumber
irf member description
Use irf member description to configure a description for an IRF member.
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 any IRF member.
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
member-id: Specifies the ID of an IRF member. The IRF member ID can only be 1 or 2.
text: Configures the IRF member description, a string of 1 to 127 characters.
Usage guidelines
You can configure a description to describe the location or purpose of a member device.
This command is available 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 a description 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.

15
Use undo irf member priority to restore the default.
Syntax
irf member member-id priority priority
undo irf member member-id priority
Default
IRF member priority is 1.
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
member-id: Specifies an IRF member ID. The IRF member ID can only be 1 or 2.
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 available in IRF mode. The new priority setting takes effect at the next master
election, but it does not trigger a master election.
To assign an IRF priority to a device in standalone mode, use the irf priority command.
Examples
# (In IRF mode.) 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 a device in the IRF fabric.
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
In standalone mode, the device does not have a member ID.
In IRF mode, the device uses the member ID that is set by using the irf member command.
Views
System view
Predefined user roles
network-admin

16
mdc-admin
Parameters
member-id: Specifies the current ID of an IRF member device. The ID can only be 1 or 2.
new-member-id: Assigns a new ID to the IRF member device. The value range for this argument is
1 to 4. However, the assigned IRF member ID must be 1 or 2. If you use 3 or 4, the 7900 IRF fabric
cannot be set up.
Usage guidelines
CAUTION:
In IRF mode, 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.
The new IRF member ID, including the one set by using the undo irf member renumber command,
takes effect after you reboot the member device.
To cancel the 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.
To set the member ID of a device in standalone mode, use the irf member command.
Examples
# (In IRF mode.) Change the member ID of an IRF member from 1 to 2.
<Sysname> system-view
[Sysname] irf member 1 renumber 2
Warning: Renumbering the member ID may result in configuration change or loss.
Continue?[Y/N]y
# (In IRF mode.) Before rebooting the device, cancel the change in the preceding example.
[Sysname] undo irf member 1 renumber
Warning: 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.
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
IRF member priority is 1.
Views
System view

17
Predefined user roles
network-admin
mdc-admin
Parameters
priority: Specifies an IRF member priority value in the range of 1 to 32.
Usage guidelines
Member priority is used for role election. The greater the priority value, the higher the priority. A
member with higher priority is more likely to be the master.
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 member-id priority
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 member-id/port-number
Use irf-port member-id/port-number to enter IRF port view in IRF mode.
Use undo irf-port member-id/port-number to removing all port bindings on an IRF port in IRF
mode.
Syntax
irf-port member-id/port-number
undo irf-port member-id/port-number
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
member-id/port-number: Specifies an IRF port on an IRF member. The member-id argument
represents the ID of the IRF member. The 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.
Before you remove all port bindings on an IRF port, shut down all its physical interfaces.
Examples
# (In IRF mode.) Enter the view of IRF-port 1 on member 1.
<Sysname> system-view