• Any other similar event that affects the operation of the host.
This section includes the following topics:
About RSCN Information
Apart from sending these events to registered hosts, a switch RSCN (SW-RSCN) is sent to all reachable
switches in the fabric.
The switch sends an RSCN to notify registered nodes that a change has occurred. It is up to the nodes to query
the name server again to obtain the new information. The details of the changed information are not delivered
by the switch in the RSCN sent to the nodes.
Note
Displaying RSCN Information
Use the show rscn command to display RSCN information (see Examples Displays Register Device
Information, on page 229 and Displays RSCN Counter Information, on page 229).
Displays Register Device Information
switch# show rscn scr-table vsan 1
SCR table for VSAN: 1
---------------------------------------------
FC-ID REGISTERED FOR
---------------------------------------------
0x1b0300 fabric detected rscns
Total number of entries = 1
The SCR table is not configurable. It is populated when hosts send SCR frames with RSCN
information. If hosts do not receive RSCN information, then the show rscn scr-table command will
not return entries.
Note
Displays RSCN Counter Information
switch(config)# show rscn statistics vsan 106
Statistics for VSAN: 106
-------------------------
Number of SCR received = 0
Number of SCR ACC sent = 0
Number of SCR RJT sent = 0
Number of RSCN received = 0
Number of RSCN sent = 0
Number of RSCN ACC received = 0
Number of RSCN ACC sent = 0
Number of RSCN RJT received = 0
Number of RSCN RJT sent = 0
Number of SW-RSCN received = 0
Cisco MDS 9000 Series Fabric Configuration Guide, Release 8.x
229
Managing FLOGI, Name Server, FDMI, and RSCN Databases
About RSCN Information