HP A5800 Series, Configuration Manual

9 

Or: 

<Master> cd slot3#flash:/ 

<Master> mkdir test 

%Created dir slot3#flash:/test. 

3.

To copy the

 test.app

 file on the master to the root directory of the Flash on member switch 3, 

perform the following steps: 

<Master> pwd 

slot3#flash: 

//The current working path is the root directory of the Flash on slave 3. 

<Master> cd flash:/ 

<Master> pwd 

flash: 

//The current working path is the root directory of the Flash on the master. 

<Master> copy test.app slot3#flash:/ 

Copy flash:/test.app to slot3#flash:/test.app?[Y/N]:y 

%Copy file flash:/test.app to slot3#flash:/test.app...Done. 

Configuration file synchronization 

IRF uses a strict configuration file synchronization mechanism to ensure that all switches in an IRF virtual 

device can work as a single node on the network, and to ensure that after the master fails, the other 

switches can operate normally. 

•

When a subordinate switch starts up, it automatically gets and runs the master's configuration file. 
If all switches in an IRF virtual device start up simultaneously, the subordinate switches get and run 

the master's startup configuration file. 

•

Any configuration you made on the IRF virtual device is stored on the master and synchronized in 
real time to each member switch. When you save the current configuration to the startup 

configuration file of the master by using the 

save

 command, all subordinate switches execute the 

same saving operation. 

This real-time configuration synchronization ensures that all the IRF member switches keep the same 

configuration file. If the master fails, all the other switches can still operate with the same configuration 

file. 

IRF virtual device topology maintenance 

As soon as a member switch is down or an IRF link is down, its neighbor switches broadcast the leaving 
of the switch to other members. When a member switch receives the leave message, it looks up its IRF 

topology database to determine whether the leaving switch is the master. If yes, the member switch starts 

a master election and updates its IRF topology database. If the leaving switch is not a master, the 

member switch directly updates its IRF topology database. 
An IRF port goes down only when all its physical IRF ports are down. 

IRF multi-active detection 

An IRF link failure causes an IRF virtual device to split in two IRF virtual devices operating with the same 
Layer 3 configurations, such as the same IP address. To avoid IP address collision and network 

problems, IRF uses the MAD mechanism to detect the presence of multiple identical IRF virtual devices 

and handle collisions. MAD provides the following functions: 

1.

Detection