Irf Link-Delay - HP FlexFabric 7900 Series Command Reference Manual

Predefined user roles
network-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, 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 with these commands overwrite each other.
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
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.
Link flapping causes frequent IRF splits and merges during a short time. You can avoid this situation by
configuring the IRF ports to delay reporting link down events.
An IRF port handles link down and link up events as follows:
12