R21xx-HP FlexFabric 11900 IRF Configuration Guide

To synchronize software from the active MPU to the standby MPU in standalone mode, use the undo

version check ignore and version auto-update enable commands. For more information, see

Fundamentals Configuration Guide.

To synchronize software from the global active MPU to other MPUs in an IRF fabric, use the software

auto-update function in this section.

The software auto-update function automatically propagates the software images of the master to all

members in the IRF fabric.

To join an IRF fabric, a device must use the same set of software images as the master in the fabric.

When you add a device to the IRF fabric, the software auto-update function compares the startup

software images of the joining device with the current software images of the IRF master. If the two sets

of images are different, the device automatically downloads the current software images of the master,

sets the downloaded images as the main startup software images, and automatically reboots with the

new software images to rejoin the IRF fabric.

If software auto-update is disabled, you must manually update the device with the software images of the

master before adding it to the IRF fabric.

Configuration prerequisites

Before you use the software auto-update function, verify the following items:

• The device you are adding to the IRF fabric is compatible with the software version running on the

master. If it is not compatible, the automatic software upgrading function cannot correctly work.

• The device you are adding to the IRF fabric has sufficient space for the new software images.

Configuration procedure

To enable an IRF fabric to automatically synchronize software images of the master to the devices you are

adding to the IRF fabric:

Ste

Command

Remarks

1. Enter system view.

system-view N/A

2. Enable software

auto-update.

irf auto-update enable

By default, this function is

enabled.

Setting the IRF link down report delay

You can avoid link flapping causing frequent IRF splits and merges during a short time by configuring 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.