Rscn Timer Configuration Distribution; Enabling Rscn Timer Configuration Distribution; Locking The Fabric; Committing The Rscn Timer Configuration Changes - Cisco AP775A - Nexus Converged Network Switch 5010 Configuration Manual

Managing FLOGI, Name Server, FDMI, and RSCN Databases

RSCN Timer Configuration Distribution

Because the timeout value for each switch is configured manually, a misconfiguration occurs when different
switches time out at different times. This means different N-ports in a network can receive RSCNs at different
times. Cisco Fabric Services (CFS) infrastructure alleviates this situation by automatically distributing the
RSCN timer configuration information to all switches in a fabric. This also reduces the number of SW-RSCNs.
RSCN supports two modes, distributed and nondistributed. In distributed mode, RSCN uses CFS to distribute
configuration to all switches in the fabric. In nondistributed mode, only the configuration commands on the
local switch are affected.
All configuration commands are not distributed. Only the rscn event-tov tov vsan vsan command is
Note
distributed.
Only the RSCN timer configuration is distributed.
Caution
The RSCN timer is registered with 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.
Related Topics
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Enabling RSCN Timer Configuration Distribution

To enable RSCN timer configuration distribution, perform this task:
Procedure
Step 1
Step 2
Step 3

Locking the Fabric

The first action that modifies the database creates the pending database and locks the feature in the VSAN.
Once you lock the fabric, the following situations apply:
• No other user can make any configuration changes to this feature.
• A copy of the configuration database becomes the pending database along with the first active change.

Committing the RSCN Timer Configuration Changes

If you commit the changes made to the active database, the configuration is committed to all the switches in
the fabric. On a successful commit, the configuration change is applied throughout the fabric and the lock is
released.
To commit RSCN timer configuration changes, perform this task:
OL-16597-01
Using Cisco Fabric Services, page 299
Command or Action
switch# configuration terminal
switch(config)# rscn distribute
switch(config)# no rscn distribute
Purpose
Enters configuration mode.
Enables RSCN timer distribution.
Disables (default) RSCN timer distribution.
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
RSCN Timer Configuration Distribution
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