What is a purpose for distributing Switch Registered State Change Notifications (SW-RSCNs) in a
fabric?

A.
Updates the name server on all switches in the fabric

B.
Stops or slows down transmissions from other switches in the fabric

C.
Distributes configuration values and congestion notifications across the fabric

D.
Exchanges requests for change notifications among distributed management servers

Explanation:
Fabric Services
Each switch has a Fabric Controller located at the predefined address FFFFFD. The Fabric
Controller provides services to both node ports and other switches. The Fabric Controller is
responsible for managing and distributing Registered State Change Notifications (RSCNs) to the
node ports registered with the Fabric Controller. If there is a change in the fabric, RSCNs are sent
out by a switch to the attached node ports. The Fabric Controller also generates Switch
Registered State Change Notifications (SW-RSCNs) to every other domain (switch) in the fabric.
These RSCNs keep the name server up-to-date on all switches in the fabric.
EMC E10-001 Student Resource Guide. Module 5: Fibre Channel Storage Area Network (FC
SAN)