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This command is available in IRF mode. Changing the operating mode from IRF to standalone can cause
loss of the IRF domain setting even if 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 you use one IRF fabric as the intermediate device for LACP MAD or ARP MAD for another IRF fabric,
assign the two IRF fabrics different domain IDs for correct split detection. False detection causes IRF split.
Examples
# Set the domain ID of the IRF fabric 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 IRF link down report delay in milliseconds. The value range is 200 to 2000. If the
interval is set to 0, link down events are reported without any delay.
Description
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.
By default, if an IRF link changes from up to down, the IRF port immediately reports the event to the IRF
fabric.
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:
•
When 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.
•
When the IRF link changes from down to up, the link layer immediately reports the event to the IRF
fabric.
This command is available in IRF mode. Changing the operating mode from IRF to standalone can cause
loss of the
irf link-delay
setting even if you have saved the configuration.
Examples
# Set the IRF link down report delay to 300 milliseconds.
<Sysname> system-view
