H3C S5120-EI Series Installation manual

H3C S5120-EI Series Ethernet Switches
IRF Command Reference
Hangzhou H3C Technologies Co., Ltd.
http://www.h3c.com
Software version: Release 2208
Document version: 6W100-20101224

Copyright © 2010, Hangzhou H3C Technologies Co., Ltd. and its licensors
All rights reserved
No part of this manual may be reproduced or transmitted in any form or by any means
without prior written consent of Hangzhou H3C Technologies Co., Ltd.
Trademarks
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, TOP G, , IRF, NetPilot, Neocean,
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V2G, VnG, PSPT, XGbus, N-Bus, TiGem, InnoVision and HUASAN are trademarks of Hangzhou
H3C Technologies Co., Ltd.
All other trademarks that may be mentioned in this manual are the property of their
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Notice
The information in this document is subject to change without notice. Every effort has been
made in the preparation of this document to ensure accuracy of the contents, but all
statements, information, and recommendations in this document do not constitute the
warranty of any kind, express or implied.

Preface
The H3C S5120-EI documentation set includes 10 command references, which describe the
commands and command syntax options for the S5120-EI Series Ethernet Switches,
Release2208.
The IRF Command Reference describes IRF configuration commands for creating an IRF
virtual device. It covers the commands for binding physical ports to an IRF port, configuring
the member switch ID and priority, and detecting and maintaining the IRF link.
This preface includes:
•Audience
•Added and modified commands
•Conventions
•About the H3C S5120-EI documentation set
•Obtaining documentation
•Technical support
•Documentation feedback
Audience
This documentation is intended for:
•Network planners
•Field technical support and servicing engineers
•Network administrators working with the S5120-EI series
Added and modified commands
Compared to Release2202, Release2208 adds, modifies, and deletes the following
commands:
Command reference Added and modified commands
IRF
Added command(s):
•display irf-port load-sharing mode
•display mad
•irf domain
•irf member description
•irf-port
•irf-port load-sharing mode
•irf-port-configuration active
•mad arp enable
•mad enable
•mad exclude interface
•mad restore
•port group interface
Deleted command(s):

Command reference Added and modified commands
•irf member irf port
Conventions
This section describes the conventions used in this documentation set.
Command conventions
Convention Description
Boldface Bold text represents commands and keywords that you enter literally as shown.
Italic Italic text represents arguments that you replace with actual values.
[ ] Square brackets enclose syntax choices (keywords or arguments) that are
optional.
{ x | y | ... }
Braces enclose a set of required syntax choices separated by vertical bars,
from which you select one.
[ x | y | ... ]
Square brackets enclose a set of optional syntax choices separated by vertical
bars, from which you select one or none.
{ x | y | ... } *
Asterisk marked braces enclose a set of required syntax choices separated by
vertical bars, from which you select at least one.
[ x | y | ... ] *
Asterisk marked square brackets enclose optional syntax choices separated
by vertical bars, from which you may select multiple choices or none.
&<1-n> The argument or keyword and argument combination before the ampersand
(&) sign can be entered 1 to n times.
# A line that starts with a pound (#) sign is comments.
GUI conventions
Convention Description
Boldface Window names, button names, field names, and menu items are in Boldface.
For example, the New User window appears; click OK.
> Multi-level menus are separated by angle brackets. For example, File > Create
> Folder.
Symbols
Convention Description
WARNING An alert that calls attention to important information that if not understood or
followed can result in personal injury.
CAUTION An alert that calls attention to important information that if not understood or
followed can result in data loss, data corruption, or damage to hardware or
software.
IMPORTANT An alert that calls attention to essential information.
NOTE An alert that contains additional or supplementary information.
TIP An alert that provides helpful information.

About the H3C S5120-EI documentation set
The H3C S5120-EI documentation set includes:
Category Documents Purposes
Marketing brochures Describe product specifications and benefits.
Technology white papers Provide an in-depth description of software
features and technologies.
RPS User Manual Describes the appearances, features, and specifications of the RPS units available for the
products.
RPS Ordering Information for
H3C Low-End Ethernet
Switches
Provides the RPS and switch compatibility matrix
and RPS cable specifications.
H3C Low End Series Ethernet
Switches Pluggable Modules
Manual
Describes the models, appearances, and
specifications of the pluggable modules
available for the products.
Product
description
and
specifications
Interface Card User Manual Describes the appearance and specifications
of interface cards.
Installation Manual
Provides a complete guide to hardware
installation and hardware specifications.
Provides regulatory information and the safety
instructions that must be followed during
installation.
Pluggable SFP[SFP+][XFP]
Transceiver Modules
Installation Guide
Guides you through installing SFP/SFP+/XFP
transceiver modules.
Hardware
installation
Interface Card User Manual Describes how to install an interface card.
Configuration guides Describe software features and configuration
procedures.
Software
configuration Command references Provide a quick reference to all available
commands.
H3C Series Ethernet Switches
Login Password Recovery
Manual
Describes how to find or recover a lost
password.
Operations
and
maintenance Release notes
Provide information about the product release,
including the version history, hardware and
software compatibility matrix, version upgrade
information, technical support information, and
software upgrading.
Obtaining documentation
You can access the most up-to-date H3C product documentation on the World Wide Web
at http://www.h3c.com.
Click the links on the top navigation bar to obtain different categories of product
documentation:

[Technical Support & Documents > Technical Documents] – Provides hardware installation,
software upgrading, and software feature configuration and maintenance
documentation.
[Products & Solutions] – Provides information about products and technologies, as well as
solutions.
[Technical Support & Documents > Software Download] – Provides the documentation
released with the software version.
Technical support
[email protected]
http://www.h3c.com
Documentation feedback
You can e-mail your comments about product documentation to [email protected].
We appreciate your comments.

i
Contents
IRF configuration commands ······································································································································· 1
IRF configuration commands············································································································································1
display irf ··································································································································································1
display irf configuration···········································································································································2
display irf topology ··················································································································································3
display irf-port load-sharing mode··························································································································5
display mad ······························································································································································6
display switchover state···········································································································································8
irf auto-update enable··············································································································································9
irf domain······························································································································································· 10
irf link-delay···························································································································································· 11
irf mac-address persistent ····································································································································· 11
irf member description·········································································································································· 12
irf member priority················································································································································· 13
irf member renumber············································································································································· 14
irf switch-to ····························································································································································· 15
irf-port ····································································································································································· 16
irf-port load-sharing mode (system view) ············································································································ 17
irf-port load-sharing mode (IRF port view) ·········································································································· 18
irf-port-configuration active··································································································································· 19
mad arp enable····················································································································································· 20
mad enable···························································································································································· 20
mad exclude interface ·········································································································································· 21
mad restore ···························································································································································· 22
port group interface ·············································································································································· 23
Index ············································································································································································· 1

1
IRF configuration commands
NOTE:
In the S5120-EI series switches, only the followin
g
switch models support the commands in this chapter:
S5120-28C-EI, S5120-52C-EI, S5120-28C-PWR-EI, and S5120-52C-PWR-EI.
IRF configuration commands
display irf
Syntax
display irf [ |{ begin | exclude | include } regular-expression ]
View
Any view
Default level
1: Monitor level
Parameters
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see CLI configuration in the Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, which is a case sensitive string of 1 to 256 characters.
Description
Use the display irf command to display information about the IRF virtual device.
The command displays information about all switches that have joined or are joining this IRF virtual
device.
Examples
# Display information about the IRF virtual device.
<Sysname> display irf
Switch Role Priority CPU-Mac Description
*+1 Master 2 0023-8929-4f83 -----
2 Slave 1 0023-8980-54ad -----
--------------------------------------------------
* indicates the device is the master.
+ indicates the device through which the user logs in.
The Bridge MAC of the IRF is: 0023-8929-4f70
Auto upgrade : no

2
Mac persistent : 6 min
Domain ID : 0
Table 1 display irf command output description
Field Description
Switch
Member ID.
•The ID of the master is prefixed with an asterisk (*) sign.
•The ID of the switch where you are logged in is prefixed with a plus (+)
sign.
Role
The member switch of the IRF virtual device can have the following roles:
•Slave
•Master
•SlaveWait—The switch is joining the IRF virtual device.
•Loading—The switch is loading the system boot file.
CPU-MAC Bridge MAC address of the CPU of the switch.
Description
Description of the member (----- is displayed if the description of the switch
is not configured)
If the description of the member switch exceeds one line, … is displayed at
the end of the line and the reset information is not displayed. To view the
complete description, execute the display current-configuration command.
Auto upgrade
Indicates whether the auto upgrade of the configuration files is enabled:
•yes: Enabled
•no: Disabled
MAC persistent
Preservation information about the bridge MAC address of the IRF virtual
device:
•6 min: When the master leaves, the bridge MAC address does not
change for six minutes.
•always: The bridge MAC address unchanged even if the master leaves
the IRF virtual device..
•no: As soon as the master leaves, the IRF virtual device uses the bridge
MAC address of the newly elected master as its bridge MAC address.
Domain ID
Domain ID assigned to an IRF virtual device. A domain ID is used to
uniquely identify an IRF virtual device when there are multiple IRF virtual
devices in the network.
display irf configuration
Syntax
display irf configuration [ |{ begin | exclude | include } regular-expression ]
View
Any view
Default level
1: Monitor level

3
Parameters
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see CLI configuration in the Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, which is a case sensitive string of 1 to 256 characters.
Description
Use the display irf configuration command to display the pre-configurations of all IRF member switches.
The command displays the member ID, priority, IRF port state, and port information.
NOTE:
The pre-configurations take effect at the reboot of the switch.
Examples
# Display the pre-configurations of all IRF member switches.
<Sysname> display irf configuration
MemberID NewID IRF-Port1 IRF-Port2
1 1 disable Ten-GigabitEthernet1/1/2
2 2 Ten-GigabitEthernet2/2/1 disable
Table 2 display irf configuration command output description
Field Description
Switch Member ID.
New-ID The member ID configured for a switch after its reboot.
IRF-Port1
The left IRF port of a switch after its reboot.
•If it is displayed as x, it indicates that the IRF port is bound with the physical
IRF port x.
•If it is displayed as x.y, it indicates that the IRF port is aggregated from the
physical IRF ports xand y.
•If it is displayed as disable, it indicates that the IRF port is not enabled.
IRF-Port2
The right IRF port of a switch after its reboot.
•If it is displayed as x, it indicates that the IRF port is bound with the physical
IRF port x.
•If it is displayed as x.y, it indicates that the IRF port is aggregated from the
physical IRF ports xand y.
•If it is displayed as disable, it indicates that the IRF port is not enabled.
display irf topology
Syntax
display irf topology [ |{ begin | exclude | include } regular-expression ]

4
View
Any view
Default level
1: Monitor level
Parameters
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see CLI configuration in the Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, which is a case sensitive string of 1 to 256 characters.
Description
Use the display irf topology command to display topology information for the IRF virtual device.
Examples
# Display topology information for the IRF virtual device.
<Sysname> display irf topology
Topology Info
-------------------------------------------------------------------------
IRF-Port1 IRF-Port2
Switch Link neighbor Link neighbor Belong To
1 DIS -- UP 2 0023-8929-4f83
2 UP 1 DIS -- 0023-8929-4f83
Table 3 display irf topology command output description
Field Description
Switch Member ID
IRF-Port 1 Information about IRF–port 1, including its link state and neighbor (or remote
port).
IRF-Port 2 Information about IRF-Port 2, including its link state and neighbor (or remote
port).
Belong To The IRF virtual device that the switch belongs to, represented by the bridge MAC
address of the master in the IRF virtual device.
Link
Link state of the IRF port:
•UP
•DOWN
•DIS—No physical port is bound to the IRF port.
neighbor The switch ID that connects to this IRF port.
If the IRF port does not connect to any switch, a hyphen (--) is displayed.

5
display irf-port load-sharing mode
Syntax
display irf-port load-sharing mode [ irf-port [ member-id/port-number ] ] [ |{ begin | exclude | include }
regular-expression ]
View
Any view
Default level
1: Monitor level
Parameters
member-id/port-number: IRF port number, where member-id represents the ID of an IRF member switch.
The port-number argument specifies the port number, and the value can be 1 or 2.
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see CLI configuration in the Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, which is a case sensitive string of 1 to 256 characters.
Description
Use the display irf-port load-sharing mode command to display the load sharing criteria for IRF links.
If you do not specify the irf-port keyword, the command displays the global load sharing criteria.
If you specify the irf-port keyword without specifying an IRF port, the command displays the load sharing
criteria for the member links of each IRF port.
If you specify both the irf-port keyword and an IRF port, the command displays the load sharing criteria
for the member links of the specified port.
Examples
# Display the default global load sharing criteria for IRF links.
<Sysname> display irf-port load-sharing mode
irf-port Load-Sharing Mode:
Layer 2 traffic: destination-mac address, source-mac address
Layer 3 traffic: destination-ip address, source-ip address
# Display the configured global load sharing criteria for IRF links.
<Sysname> display irf-port load-sharing mode
irf-port Load-Sharing Mode:
destination-mac address, source-mac address
# Display the default load sharing criteria for the member links of IRF port 1/2.
<Sysname> display irf-port load-sharing mode irf-port 1/2
irf-port1/2 Load-Sharing Mode:

6
Layer 2 traffic: destination-mac address, source-mac address
Layer 3 traffic: destination-ip address, source-ip address
# Display the configured load sharing criteria for the member links of IRF port 1/2.
<Sysname> display irf-port load-sharing mode irf-port 1/2
irf-port1/2 Load-Sharing Mode:
destination-mac address, source-mac address
# Display the load sharing criteria for the member links of each IRF port.
<Sysname> display irf-port load-sharing mode irf-port
irf-port1/2 Load-Sharing Mode:
Layer 2 traffic: destination-mac address, source-mac address
Layer 3 traffic: destination-ip address, source-ip address
irf-port2/1 Load-Sharing Mode:
Layer 2 traffic: destination-mac address, source-mac address
Layer 3 traffic: destination-ip address, source-ip address
Table 4 display irf-port load-sharing mode command output description
Field Description
irf-port Load-Sharing Mode
Global IRF port load sharing mode:
•If the default configuration is applied, the port load sharing
mode for processing both Layer 2 and Layer 3 packets are
displayed.
•If the non-default configuration is applied, the user-configured
load sharing mode is displayed.
irf-port 1/2 Load-Sharing Mode
IRF port load sharing mode on IRF port 1/2:
•If the default configuration is applied, the global IRF port load
sharing mode is displayed.
•If the non-default configuration is applied, the user-configured
load sharing mode is displayed.
Layer 2 traffic: destination-mac address,
source-mac address
The port load sharing mode for processing Layer 2 packets: It uses
the combination of both the source and the destination MAC
addresses as the hash key for load sharing.
Layer 3 traffic: destination-ip address,
source-ip address
The port load sharing mode for processing Layer 3 packets: It uses
the combination of both the source and the destination IP addresses
as the hash key for load sharing.
destination-mac address, source-mac
address
The user configured load sharing mode: It uses the combination of
both the source and the destination MAC addresses as the hash key
for load sharing.
display mad
Syntax
display mad [ verbose ] [ |{ begin | exclude | include } regular-expression ]

7
View
Any view
Default level
1: Monitor level
Parameters
verbose: Displays detailed information about the MAD detection. If this keyword is not provided, the
system displays brief information about the MAD detection.
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see CLI configuration in the Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, which is a case sensitive string of 1 to 256 characters.
Description
Use the display mad command to display information about multi-active detection (MAD).
Examples
# Display brief information about MAD.
<Sysname> display mad
MAD ARP disabled.
MAD LACP enabled.
# Display detailed information about MAD.
<Sysname> display mad verbose
Current MAD status: Detect
Excluded ports(configurable):
Vlan-interface999
Excluded ports(can not be configured):
MAD ARP enabled interface:
Vlan-interface2
MAD enabled aggregation port:
Bridge-Aggregation1
Table 5 display mad command output
Field Description
MAD LACP enabled The enable status of LACP MAD. It can be enabled or disabled depending
on the configuration.
MAD ARP enabled. The enable status of ARP MAD. It can be enabled or disabled depending
on your configuration.

8
Field Description
Current MAD status
MAD status:
•Detect—The IRF virtual device is normal, and MAD is detecting
multi-active collisions.
•Recovery—The IRF virtual device is in recovery state. When detecting a
multi-active collision, MAD places the IRF virtual device with higher
master ID in recovery state and shuts down all physical ports in the
device but the IRF ports and the ports that are configured not to shut
down.
•Detect to Recovery—The state of the IRF virtual device is transitioning
from detect to recovery, for example, as a result of IRF partition.
•Recovery to Detect—The state of the IRF virtual device is transitioning
from recovery to detect when the failed IRF link is detected recovered.
Excluded ports(configurable) The ports manually configured not to shut down when the IRF virtual device
transitions to the recovery state.
Excluded ports(can not be
configured)
The ports set by default not to shut down when the IRF virtual device
transitions to the recovery state.
MAD ARP enabled interface:
Vlan-interface2 The interface where ARP MAD is enabled.
MAD enabled aggregation port:
Bridge-Aggregation1 The aggregate interface where LACP MAD is enabled.
display switchover state
Syntax
display switchover state [ slot member-id ] [ |{ begin | exclude | include } regular-expression ]
View
Any view
Default level
1: Monitor level
Parameters
slot member-id: Specifies the ID of an IRF member switch. With this argument, the command displays the
master/slave switchover state of the specified member. Without this argument, the command displays the
master/slave switchover state of the master.
|: Filters command output by specifying a regular expression. For more information about regular
expressions, see CLI configuration in the Fundamentals Configuration Guide.
begin: Displays the first line that matches the specified regular expression and all lines that follow.
exclude: Displays all lines that do not match the specified regular expression.
include: Displays all lines that match the specified regular expression.
regular-expression: Specifies a regular expression, which is a case sensitive string of 1 to 256 characters.

9
Description
Use the display switchover state command to display the master/slave switchover state in the IRF virtual
device.
Examples
# Display the master/slave switchover states of the master.
<Sysname> display switchover state
Master HA State to slot 2: Realtime backup to slave.
Master HA State to slot 3: Slave is absent.
Master HA State to slot 4: Waiting batch backup request from slave.
The output shows that the slave switches 3 is absent, or not in use, the master is waiting for the batch
backup request from slave 4, and the slave switches 2 is performing real-time backup.
Table 6 display switchover state command output description for the master
Field Description
Master HA State to slot slot-number
Indicates that this output information is generated by
the master.
Describes the master/slave switchover state between
the master and the slave whose slot-number represents
its member ID.
Data smooth The slave switch is transitioning to the master role.
# Display the master/slave switchover state of slave 3.
<Sysname> display switchover state slot 3
Slave HA State: Receiving realtime data.
The output shows that slave 3 is receiving real time backup data.
Table 7 display switchover state command output description for a slave
Field Description
Slave HA State Indicates that this output information is generated by a slave.
Describes the master/slave switchover state of the slave.
Waiting The slave is ready, and is waiting to enter the batch backup state.
irf auto-update enable
Syntax
irf auto-update enable
undo irf auto-update enable
View
System view
Default level
3: Manage level

10
Parameters
None
Description
Use the irf auto-update enable command to automatically synchronize the boot file of the master switch
to the switch you are adding to the IRF virtual device.
Use the undo irf auto-update enable command to disable this function.
By default, this function is enabled.
When you add a switch to the IRF virtual device, the automatic boot file updating function compares the
software versions of the switch and the IRF master. If the versions are different, the switch automatically
downloads the boot file from the master, sets the downloaded file as the boot file for the next reboot, and
automatically reboots with the new boot file to re-join the IRF virtual device.
If this function is disabled, you must manually ensure that the joining switch uses the same boot file as the
master switch. If not, the new switch cannot join the IRF virtual device.
IMPORTANT:
•Check that the switch has efficient space for the new boot file.
•If the switch has a boot file that uses the same name as the new boot file, back up the old boot file as
needed. The downloaded new boot file will overwrite the old boot file.
Examples
# Enable the automatic boot file updating function on the IRF virtual device.
<Sysname> system-view
[Sysname] irf auto-update enable
irf domain
Syntax
irf domain domain-id
undo irf domain
View
System view
Default level
3: Manage level
Parameters
domain-id: Assigns a domain ID to the IRF virtual device, ranging from 0 to 4294967295.
Description
Use the irf domain command to assign a domain ID for an IRF virtual device.
Use the irf domain command to restore the default.
By default, the domain ID of an IRF virtual device is 0.
You can deploy multiple IRF virtual devices in one network. The domain ID enables you to differentiate
these IRF virtual devices.

11
Examples
# Set the domain ID of the IRF virtual device to 30.
<Sysname> system-view
[Sysname] irf domain 30
irf link-delay
Syntax
irf link-delay interval
undo irf link-delay
View
System view
Default level
3: Manage level
Parameters
interval: Sets the delay in milliseconds for the IRF ports to report a link down event. The value range is
200 to 2000.
Description
Use the irf link-delay command to set the delay for the IRF ports to report a link down event.
Use the undo irf link-delay command to restore the default.
You can avoid link flapping causing frequent IRF splits and merges during switch reconfiguration by
configuring the IRF ports to delay reporting link down events.
The default delay for reporting an IRF link down event is 250 milliseconds.
Examples
# Set the IRF link down report delay to 300 milliseconds.
<Sysname> system-view
[Sysname] irf link-delay 300
irf mac-address persistent
Syntax
irf mac-address persistent { always | timer }
undo irf mac-address persistent
View
System view
Default level
3: Manage level
Parameters
always: Enables the IRF virtual device to preserve its bridge MAC address permanently even after the
master leaves.

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timer: Enables the IRF virtual device to preserve its bridge MAC address for six minutes after the master
leaves.
Description
Use the irf mac-address persistent command to enable the IRF virtual device to preserve its bridge MAC
address for a certain period after the master leaves.
Use the undo irf mac-address persistent command to enable the IRF virtual device to change its bridge
MAC address as soon as the master leaves.
By default, the IRF virtual device preserves its bridge MAC address for six minutes after the master leaves.
The IRF virtual device handles its bridge MAC address depending on the MAC preservation setting:
•Preserve for six minutes—When the master leaves, the bridge MAC address does not change within
six minutes. If the master does not come back when the preservation time expires, the IRF virtual
device uses the bridge MAC address of the newly elected master as its bridge MAC address.
•Preserve permanently—No matter whether the master leaves the IRF virtual device or not, the bridge
MAC address of the IRF virtual device remains unchanged.
•Not preserved—As soon as the master leaves, the IRF virtual device uses the bridge MAC address
of the newly elected master as its bridge MAC address.
IMPORTANT:
When you plan a network that uses ARP MAD and MSTP, use the undo irf mac-address persistent
command to configure the bridge MAC address of the IRF virtual device to chan
g
e as soon as the master
leaves.
Examples
# Configure the bridge MAC address of the IRF virtual device to be preserved permanently.
<Sysname> system-view
[Sysname] irf mac-address persistent always
irf member description
Syntax
irf member member-id description text
undo irf member member-id description
View
System view
Default level
3: Manage level
Parameters
member-id: ID of an IRF member switch.
text: Description of the member switch, which is a string of 1 to 127 characters.
Description
Use the irf member description command to configure a description for an IRF member switch.
Use the undo irf member description command to restore the default.

13
By default, no description is configured for any IRF member switch.
Examples
# Configure a description for IRF member switch 1.
<Sysname> system-view
[Sysname] irf member 1 description F1Num001
irf member priority
Syntax
irf member member-id priority priority
undo irf member member-id priority
View
System view
Default level
3: Manage level
Parameters
member-id: ID of an IRF member switch.
priority: Priority value, ranging from 1 to 32.
Description
Use the irf member priority command to specify a priority for an IRF member switch.
Use the undo irf member priority command to restore the default.
By default, the priority of a member switch is 1.
The greater the priority value, the higher the priority. A member with a higher priority is more likely to be
the master, and more likely to preserve its ID in a member ID collision.
Examples
# Specify a priority for the local switch.
<Sysname> display irf
Switch Role Priority CPU-Mac
*1 Slave 29 00e0-fc00-1115
2 Slave 1 00e0-fc00-1615
+3 Master 32 00e0-fc00-1015
4 Slave 30 00e0-fc00-1515
--------------------------------------------------------
* indicates the device is the master.
+ indicates the device through which the user logs in.
The Bridge MAC of the IRF is: 00e0-fc00-1000
Auto upgrade : yes
Mac persistent : always
Domain ID : 0
The output shows that the member ID of the local switch is 3, and you can specify a priority for the local
switch by providing its member ID.
<Sysname> system-view