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About RSCN Information
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 .
The SCR table is not configurable. It is populated when hosts send SCR frames with RSCN information.
Note
If hosts do not receive RSCN information, then the show rscn scr-table command will not return entries.
Example 22-13 Displays RSCN Counter Information
switch# show rscn statistics vsan 1
Statistics for VSAN: 1
-------------------------
Number of SCR received
Number of SCR ACC sent
Number of SCR RJT sent
Number of RSCN received
Number of RSCN sent
Number of RSCN ACC received
Number of RSCN ACC sent
Number of RSCN RJT received
Number of RSCN RJT sent
Number of SW-RSCN received
Number of SW-RSCN sent
Number of SW-RSCN ACC received = 15
Number of SW-RSCN ACC sent
Number of SW-RSCN RJT received = 0
Number of SW-RSCN RJT sent
About the multi-pid Option
If the RSCN multi-pid option is enabled, then RSCNs generated to the registered Nx ports may contain
more than one affected port IDs. In this case, zoning rules are applied before putting the multiple affected
port IDs together in a single RSCN. By enabling this option, you can reduce the number of RSCNs. For
example: Suppose you have two disks (D1, D2) and a host (H) connected to switch 1. Host H is registered
to receive RSCNs. D1, D2 and H belong to the same zone. If disks D1 and D2 are online at the same
time, then one of the following applies:
•
•
Note
Some Nx ports may not understand multi-pid RSCN payloads. If so, disable the multi-pid RSCN option.
To configure the multi-pid option, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# rscn multi-pid vsan 105
Cisco MDS 9000 Family Configuration Guide
22-8
The multi-pid option is disabled on switch 1: two RSCNs are generated to host H—one for the disk
D1 and another for disk D2.
The multi-pid format is enabled on switch 1: a single RSCN is generated to host H, and the RSCN
payload lists the affected port IDs (in this case, both D1 and D2).
Chapter 22
Managing FLOGI, Name Server, FDMI, and RSCN Databases
= 8
= 8
= 0
= 0
= 24
= 24
= 0
= 0
= 0
= 6
= 15
= 6
= 0
Purpose
Enters configuration mode.
Sends RSCNs in a multi-pid format for VSAN 105.
OL-6973-03, Cisco MDS SAN-OS Release 2.x
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