Cisco MDS 9000 series Command Reference Manual page 1210

show mcast
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
Multicast root for VSAN 4003
Multicast root for VSAN 4004
Related Commands Command
mcast root
Cisco MDS 9000 Family Command Reference
22-236
Configured root mode : Principal switch
Operational root mode : Principal switch
Root Domain ID : 0xe0(224)
Configured root mode : Principal switch
Operational root mode : Lowest domain switch
Root Domain ID : 0x01(1)
Description
Configures the multicast root VSAN.
Chapter 22 Show Commands
OL-8413-07, Cisco MDS SAN-OS Release 3.x