Verifying The Rscn Timer Configuration; Rscn Timer Configuration Distribution; Enabling Rscn Timer Configuration Distribution - Cisco Nexus 5000 Series Configuration Manual

RSCN

Verifying the RSCN Timer Configuration

You verify the RSCN timer configuration using the show rscn event-tov vsan command. This example shows
how to clear the RSCN statistics for VSAN 10:
switch# show rscn event-tov vsan 10
Event TOV : 1000 ms

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. 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, which also reduces the number of SW-RSCNs.
RSCN supports two modes, distributed and nondistributed. In distributed mode, RSCN uses Cisco Fabric
Services (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.
Caution Only the RSCN timer configuration is distributed.
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.
For additional information, refer to Using Cisco Fabric Services in the System Management Configuration
Guide for your device.

Enabling RSCN Timer Configuration Distribution

You can enable RSCN timer configuration distribution.
SUMMARY STEPS
1. configure terminal
2. rscn distribute
3. no rscn distribute
Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide, Release 5.2(1)N1(1)
210
Managing FLOGI, Name Server, FDMI, and RSCN Databases
OL-27583-01