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You want to shut down an IRF physical interface or reboot an IRF member device. (After
you complete the operation, reconfigure the delay depending on the network condition.)
To set the IRF link down report delay:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Set the IRF link down
report delay.
irf link-delay
interval
The default IRF link down report delay is 4
seconds.
Configuring MAD
When you configure MAD, follow these restrictions and guidelines:
•
You can configure BFD MAD, ARP MAD, and ND MAD together in an IRF fabric for prompt IRF
split detection. However, do not configure any of these mechanisms together with LACP MAD,
because they handle collisions differently.
•
If LACP MAD, ARP MAD, or ND MAD runs between two IRF fabrics, assign each fabric a
unique IRF domain ID. (For BFD MAD, this task is optional.)
•
An IRF fabric has only one IRF domain ID. You can change the IRF domain ID by using the
following commands:
irf domain
,
mad enable
,
mad arp enable
, or
mad nd enable
. The IRF
domain IDs configured by using these commands overwrite each other.
•
To prevent a port from being shut down when the IRF fabric transits to the Recovery state, use
the
mad exclude interface
command. To bring up ports in a Recovery-state IRF fabric, use the
mad restore
command instead of the
undo shutdown
command. The
mad restore
command
activates the Recovery-state IRF fabric.
Configuring LACP MAD
When you use LACP MAD, follow these restrictions and guidelines:
•
The intermediate device must be a device that supports extended LACP for MAD.
•
If the intermediate device is also an IRF fabric, assign the two IRF fabrics different domain IDs
for correct split detection.
•
Use dynamic link aggregation mode. MAD is LACP dependent. Even though LACP MAD can
be configured on both static and dynamic aggregate interfaces, it takes effect only on dynamic
aggregate interfaces.
•
Configure link aggregation settings on the intermediate device.
To configure LACP MAD:
Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Assign a domain ID to the
IRF fabric.
irf domain domain-id
The default IRF domain ID is 0.
3.
Create an aggregate
interface and enter
aggregate interface view.
•
Enter Layer 2 aggregate
interface view:
interface bridge-aggregation
interface-number
•
Enter Layer 3 aggregate
interface view:
interface route-aggregation
Perform this step also on the
intermediate device.
