1-10Total 1 IP Group(s).Total 1 IP Source(s).Total 1 MAC Group(s).Router port(s):total 1 port.GE1/0/1 (D)IP group(s):the following ip group(s) match to one mac group.IP group address:224.1.1.1(0.0.0.0, 224.1.1.1):Host port(s):total 0 port.MAC group(s):MAC group address:0100-5e01-0101Host port(s):total 0 port.As shown above, IGMP Snooping is maintaining the router port in the multicast VLAN (VLAN 10) andthe member ports in the sub-VLANs (VLAN 2 through VLAN 4).Port-Based Multicast VLAN ConfigurationNetwork requirementsz As shown in Figure 1-5, Router A connects to a multicast source (Source) through GigabitEthernet1/0/1, and to Switch A through GigabitEthernet 1/0/2.z IGMPv2 is required on Router A. IGMPv2 Snooping is required on Switch A. Router A acts as theIGMP querier.z Switch A’s GigabitEthernet 1/0/1 belongs to VLAN 10, GigabitEthernet 1/0/2 throughGigabitEthernet 1/0/4 belong to VLAN 2 through VLAN 4 respectively, and Host A through Host Care attached to GigabitEthernet 1/0/2 through GigabitEthernet1/0/4 of Switch A respectively.z The multicast source sends multicast data to multicast group 224.1.1.1. Host A, Host B, and Host Care receivers of the multicast group.z Configure the port-based multicast VLAN feature so that Router A just sends multicast data toSwitch A through the multicast VLAN and Switch A forwards the multicast data to the receivers thatbelong to different user VLANs.
