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Cisco MDS 9000 Family Command Reference
OL-8413-07, Cisco MDS SAN-OS Release 3.x
Chapter 20 R Commands
rscn event-tov
rscn event-tov
To configure an event timeout value for a Registered State Change Notification (RSCN) on a specified
VSAN, use the rscn event-tov command in configuration mode. To cancel the event timeout value and
restore the default value, use the no form of the command.
rscn event-tov timeout vsan vsan-id
no rscn event-tov timeout vsan vsan-id
Syntax Description
Defaults The default timeout values are 2000 milliseconds for Fibre Channel VSANs and 1000 milliseconds for
FICON VSANs.
Command Modes Configuration mode.
Command History
Usage Guidelines Before changing the timeout value, you must enable RSCN configuration distribution using the rscn
distribute command.
The RSCN timer is registered with Cisco Fabric Services (CFS) during initialization and switchover. For
high availability, if the RSCN timer distribution crashes and restarts or a switchover occurs, it resumes
normal functionality from the state prior to the crash or switchover.
Note You can determine configuration compatibility when downgrading to an earlier Cisco MDS SAN-OS
release using the show incompatibility system command. You must disable RSCN timer distribution
support before downgrading to an earlier release.
Examples The following example configures an RSCN event timeout value on VSAN 1.
switch# config terminal
Enter configuration commands, one per line. End with CNTL/Z.
switch(config)# rscn event-tov 20 vsan 1
Successful. Commit should follow for command to take effect.
timeout Specifies an event timeout value in milliseconds. The range is 0 to 2000.
vsan-id Specifies a VSAN where the RSCN event timer should be used. The ID of
the VSAN is from 1 to 4093.
Release Modification
3.0(1) This command was introduced.
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