Cisco Nexus 5000 Series Switch Fabric Manager Software Configuration Guide, NX-OS 4.0 (OL-16598-01, June 2008)

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Nexus 5000 Series Switch Fabric Manager Software Configuration Guide
OL-16598-01
Chapter 19 Managing FLOGI, Name Server, FDMI, and RSCN Databases
Default Settings
Note Before performing a downgrade, make sure that you revert the RCSN timer value in your network to the
default value. Failure to do so will disable the links across your VSANs and other devices.
Compatibility across various software releases during an upgrade or downgrade is supported by
conf-check provided by CFS. You are required to disable RSCN timer distribution support before you
downgrade. By default, the RSCN timer distribution capability is disabled.
Configuring the RSCN Timer with CFS
To configure the RSCN timer with CFS using Fabric Manager, perform this task:
Step 1 Expand a fabric, expand a VSAN, and then choose Advanced in the Logical Domains pane.
Step 2 Click the RSCN Event tab.
You see the VSAN advanced configuration in the Information pane as shown in Figure 19-6.
Figure 19-6 VSAN Advanced Configuration
Step 3
Double-click the TimeOut value to change the value (in milliseconds) for the selected VSAN.
Step 4 Click Apply Changes to save these changes, or click Undo Changes to cancel any unsaved changes.
In this example the event time-out value is set to 300 milliseconds for VSAN 12.
Default Settings
Table 19-1 lists the default settings for RSCN.
Table 19-1 Default RSCN Settings
Parameters Default
RSCN timer value 2000 milliseconds for Fibre Channel VSANs
RSCN timer configuration distribution Disabled