3-9 
  Vlan(id):3. 
    Total 1 IP Group(s). 
    Total 1 IP Source(s). 
    Total 1 MAC Group(s). 
    Router port(s):total 0 port. 
    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 1 port. 
            GE1/0/3                (D) 
    MAC group(s): 
      MAC group address:0100-5e01-0101 
          Host port(s):total 1 port. 
            GE1/0/3 
 
  Vlan(id):4. 
    Total 1 IP Group(s). 
    Total 1 IP Source(s). 
    Total 1 MAC Group(s). 
    Router port(s):total 0 port. 
    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 1 port. 
            GE1/0/4                (D) 
    MAC group(s): 
      MAC group address:0100-5e01-0101 
          Host port(s):total 1 port. 
            GE1/0/4 
 
  Vlan(id):10. 
    Total 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:0100-5e01-0101 
          Host port(s):total 0 port. 
As shown above, IGMP Snooping is maintaining the router port in the multicast VLAN (VLAN 10) and 
the member ports in the sub-VLANs (VLAN 2 through VLAN 4).