R3303-HP HSR6800 Routers IRF Command Reference

10
Default command level
3: Manage level
Parameters
interval: Sets the IRF link down report delay in milliseconds. The value range is 200 to 2000.
Usage guidelines
This command is available in IRF mode. Changing the operating mode from IRF to standalone can cause
loss of the irf link-delay command configuration even if you have saved the configuration.
An IRF link down report delay helps avoid link flapping. Link flapping causes frequent IRF splits and
merges during a short time.
An IRF port handles link down and link up events as follows:
• If the IRF link changes from up to down, the port does not immediately report the change to the IRF
fabric. If the IRF link state is still down when the delay time is reached, the port reports the change
to the IRF fabric.
• If the IRF link changes from down to up, the link layer immediately reports the event to the IRF fabric.
Examples
# Set the IRF link down report delay to 300 milliseconds.
<Sysname> system-view
[Sysname] irf link-delay 300
irf mac-address persistent
Use irf mac-address persistent to configure IRF bridge MAC persistence.
Use undo irf mac-address persistent to enable the IRF fabric to change its bridge MAC address as soon
as the master leaves.
Syntax
irf mac-address persistent { always | timer }
undo irf mac-address persistent
Default
Bridge MAC address of the IRF fabric does not change after the master leaves.
Views
System view
Default command level
3: Manage level
Parameters
always: Enables the IRF bridge MAC address to be permanent. The IRF bridge MAC address does not
change after master re-election.
timer: Enables the IRF bridge MAC address to remain the same for 6 minutes after the master device
leaves. If the device rejoins the IRF fabric before the time limit is reached, the IRF bridge MAC address
does not change. If not, the IRF fabric uses the bridge MAC address of the new master as the IRF bridge
MAC address.