143-425 · Question #102
Which well known address distributes Registered State Change Notifications (RSCNs) to registered nodes?
The correct answer is D. FFFFFD. See the full explanation below for the reasoning.
Question
Which well known address distributes Registered State Change Notifications (RSCNs) to registered nodes?
Options
- AFFFFFA
- BFFFFFB
- CFFFFFC
- DFFFFFD
How the community answered
(27 responses)- A7% (2)
- B4% (1)
- C11% (3)
- D78% (21)
Community Discussion
5
Goran A.Jun 27, 2026FFFFFD is your answer. That is the well-known address for the RSCN (Registered State Change Notification) controller, and when a fabric event triggers state changes, the FSPF and name service machinery routes RSCN frames to FFFFFD so it can distribute notifications out to any N_Port that registered for them via the SCR (State Change Registration) process.
Haruki E.Jun 24, 2026Thought FFFFFC was the FSNM, then remembered FFFFFD is the RSCN multicast address.
Goran A.Jun 26, 2026FFFFFD is RSCN, right, but do not sleep on FFFFFA for the fabric controller either, since that one trips people up just as often on the multicast address list.
Mateus R.Jun 27, 2026FFFFFC is your RSCN multicast address, the fabric controller handles those notifications.
Haruki E.Jun 27, 2026Mateus, appreciate the effort, but FFFFFC is the Fabric Controller address, not the RSCN destination. RSCNs are delivered to FFFFFD, the Name Server, so D is correct here.