The following example shows the configuration steps to enable IP multicast over SPBM support on VLANs 10 and 11 that are part of the GRT:
ISIS SPBM CONFIGURATION router isis spbm 1 multicast enable VLAN CONFIGURATION - PHASE I interface vlan 500 ip address 192.0.2.1 255.255.255.0 ip spb-multicast enable exit interface vlan 501 ip address 192.0.2.2 255.255.255.0 ip spb-multicast enable exit