R3303-HP HSR6800 Routers IRF Configuration Guide

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This function can work only when it is enabled on both IRF fabrics that are merging.
The IRF auto merge function does not take effect on the IRF fabric merge caused by binding a physical
port to an IRF port in IRF mode. You must manually reboot the devices that have been defeated in the
master selection to complete the merge.
To enable IRF auto merge:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enable IRF auto merge.
irf auto-merge enable
By default, this function is
disabled.
Configuring a member device description
You can configure a description to describe the location or purpose of a member device.
To configure a description for a member device:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Configure the description of
a member.
irf member member-id description text
By default, no member device
description is configured.
Configuring IRF bridge MAC persistence
An IRF fabric by default uses the bridge MAC address of the master device as its bridge MAC address.
Layer 2 protocols, such as LACP, use the bridge MAC address to identify the IRF fabric. On a switched
LAN, the bridge MAC address must be unique.
To avoid duplicate bridge MAC addresses, an IRF fabric can change its bridge MAC address
automatically after its master leaves, but the change can cause transient traffic disruption.
Depending on your network condition, enable the IRF fabric to preserve or change its bridge MAC
address after the master leaves. Available options include:
• irf mac-address persistent timer—Bridge MAC address of the IRF fabric is retained for 6 minutes
after the master leaves. If the master does not return before the timer expires, the IRF fabric uses the
bridge MAC address of the new master as its bridge MAC address. This option avoids unnecessary
bridge MAC address change due to a device reboot, transient link failure, or purposeful link
disconnection.
• irf mac-address persistent always—Bridge MAC address of the IRF fabric does not change after
the master leaves.
• undo irf mac-address persistent—Bridge MAC address of the new master replaces the original one
as soon as the old master leaves.
IMPORTANT:
If ARP MAD is used, configure the undo irf mac-address persistent command to enable immediate brid
g
e
MAC address change after a master leaves.