427
VLAN-interface 101 of Switch B acts as a C-BSR and C-RP of admin-scope zone 1, which provides
services for the IPv6 multicast groups with the Scope field value in their group addresses being 4.
VLAN-interface 104 of Switch D acts as a C-BSR and C-RP of admin-scope zone 2, which also provides
services for the IPv6 multicast groups with the Scope field value in their group addresses being 4.
VLAN-interface 109 of Switch F acts as C-BSRs and C-RPs of the global scope zone, which provides
services for IPv6 multicast groups with the Scope field value in their group addresses being 14.
MLDv1 runs between Switch A, Switch E, Switch I, and their respective receivers.