Configuration Prerequisites; Configuration Procedure; Setting The Irf Link Down Report Delay - HP 5130 EI series Configuration Manual

Configuration prerequisites

Make sure the device you are adding to the IRF fabric has sufficient storage space for the new software
images.
If sufficient storage space is not available, the device deletes the current software images automatically.
If the reclaimed space is still insufficient, the device cannot complete the auto-update. You must reboot the
device and access the Boot menu to delete files.

Configuration procedure

To enable an IRF fabric to synchronize software images of the master automatically to the devices you are
adding to the IRF fabric:
Step
1. Enter system view.
2. Enable software
auto-update.

Setting the IRF link down report delay

To prevent frequent IRF splits and merges during link flapping, configure the IRF ports to delay reporting
link down events. An IRF port works 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.
When you configure the IRF link down report delay, follow these restrictions and guidelines:
Make sure the IRF link down report delay is shorter than the heartbeat timeout settings of
•
upper-layer protocols (for example, CFD). The heartbeat timeout setting is the interval for a link to
be determined as down by an upper-layer protocol. If the report delay is longer than the timeout
setting of a protocol, unnecessary recalculations might occur.
Set the delay to 0 seconds in the following situations:
•
The IRF fabric requires a fast master/subordinate or IRF link switchover.
The BFD or GR feature is used.
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
1. Enter system view.
Command
system-view
irf auto-update enable
Command
system-view
25
Remarks
N/A
By default, software auto-update
is enabled.
Remarks
N/A