S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
To suppress the transmission of these SW RSCNs over an ISL, follow these steps:
switch# config t
switch(config)# rscn suppress
domain-swrscn vsan 105
You cannot suppress transmission of port address or area address format RSCNs.
Clearing RSCN Statistics
You can clear the counters and later view the counters for a different set of events. For example, you can
keep track of how many RSCNs or SW-RSCNs are generated on a particular event (like ONLINE or
OFFLINE events). You can use these statistics to monitor responses for each event in the VSAN.
Use the clear rscn statistics command to clear the RSCN statistics for the specified VSAN.
switch# clear rscn statistics vsan 1
After clearing the RSCN statistics, you can view the cleared counters by issuing the show rscn
switch# show rscn statistics vsan 1
Statistics for VSAN: 1
Number of SCR received
Number of SCR ACC sent
Number of SCR RJT sent
Number of RSCN received
Number of RSCN sent
Number of RSCN ACC received
Number of RSCN ACC sent
Number of RSCN RJT received
Number of RSCN RJT sent
Number of SW-RSCN received
Number of SW-RSCN sent
Number of SW-RSCN ACC received = 0
Number of SW-RSCN ACC sent
Number of SW-RSCN RJT received = 0
Number of SW-RSCN RJT sent
Configuring the RSCN Timer
RSCN maintains a per VSAN event list queue, where the RSCN events are queued as they are generated.
When the first RSCN event is queued, a per VSAN timer starts. Upon time-out, all the events are
dequeued and coalesced RSCNs are sent to registered users. The default timer values minimize the
number of coalesced RSCNs sent to registered users. Some deployments require smaller event timer
values to track changes in the fabric.
Cisco MDS 9000 Family CLI Configuration Guide
Managing FLOGI, Name Server, FDMI, and RSCN Databases
Enters configuration mode.
Suppresses transmission of domain format SW-RSCNs
for VSAN 105.
OL-16184-01, Cisco MDS SAN-OS Release 3.x