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
26-8
Cisco MDS 9000 Family CLI Configuration Guide
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Chapter 26 Managing FLOGI, Name Server, FDMI, and RSCN Databases
RSCN
•
IP address change.
•
Any other similar event that affects the operation of the host.
This section includes the following topics:
•
About RSCN Information, page 26-8
•
Displaying RSCN Information, page 26-8
•
About the multi-pid Option, page 26-9
•
Suppressing Domain Format SW-RSCNs, page 26-9
•
Clearing RSCN Statistics, page 26-10
•
Configuring the RSCN Timer, page 26-10
•
Verifying the RSCN Timer Configuration, page 26-11
•
RSCN Timer Configuration Distribution, page 26-11
About RSCN Information
Apart from sending these events to registered hosts, a switch RSCN (SW-RSCN) is sent to all reachable
switches in the fabric.
Note
The switch sends an RSCN to notify registered nodes that a change has occurred. It is up to the nodes to
query the name server again to obtain the new information. The details of the changed information are
not delivered by the switch in the RSCN sent to the nodes.
Displaying RSCN Information
Use the
show rscn
command to display RSCN information (see Examples
26-12
and
26-13
).
Example 26-12 Displays Register Device Information
switch#
show rscn scr-table vsan 1
SCR table for VSAN: 1
---------------------------------------------
FC-ID REGISTERED FOR
---------------------------------------------
0x1b0300 fabric detected rscns
Total number of entries = 1
Note
The SCR table is not configurable. It is populated when hosts send SCR frames with RSCN information.
If hosts do not receive RSCN information, then the
show rscn scr-table
command will not return entries.
Example 26-13 Displays RSCN Counter Information
switch#
show rscn statistics vsan 1
Statistics for VSAN: 1
-------------------------
Number of SCR received = 8
Number of SCR ACC sent = 8
Number of SCR RJT sent = 0
