Overview
Implementation of this function is obligatory for each Fibre Channel switch, but is optional for a node. This function belongs to a second level of the protocol, or FC2.
Some events that trigger notifications are:
- Nodes joining or leaving the fabric (most common usage)
- Switches joining or leaving the fabric
- Changing the switch name
The nodes wishing to be notified in such way need to register themselves first at the Fabric Controller, which is a standardized FC virtual address present at each switch.
Read more about this topic: Registered State Change Notification