H3C Technologies H3C S10500 Series Switches - Manual (Page 301)

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# Display the detailed MLD snooping group information in VLAN 100 on Switch C.
[SwitchC] display mld-snooping group vlan 100 verbose
Total 1 IP Group(s).
Total 1 IP Source(s).
Total 1 MAC Group(s).
Port flags: D-Dynamic port, S-Static port, C-Copy port, P-PIM port
Subvlan flags: R-Real VLAN, C-Copy VLAN
Vlan(id):100.
Total 1 IP Group(s).
Total 1 IP Source(s).
Total 1 MAC Group(s).
Router port unit board: Mask(0x04)
Router port(s):total 1 port(s).
GE1/0/2 (D)
IP group(s):the following ip group(s) match to one mac group.
IP group address:FF1E::101
(::, FF1E::101):
Attribute: Host Board
Host port unit board: Mask(0x04)
Host port(s):total 2 port(s).
GE1/0/3 (S)
GE1/0/5 (S)
MAC group(s):
MAC group address:3333-0000-0101
Host port unit board: Mask(0x04)
Host port(s):total 2 port(s).
GE1/0/3
GE1/0/5
The output shows that GigabitEthernet 1/0/3 and GigabitEthernet 1/0/5 on Switch C have become
static member ports for IPv6 multicast group FF1E::101.
MLD snooping querier configuration example
Network requirements
• As shown in Figure 72 , in a Layer-2-only network environment, two multicast sources (Source 1 and
Source 2) send IPv6 multicast data to multicast groups FF1E::101 and FF1E::102 respectively, Host
A and Host C are receivers of multicast group FF1E::101 and Host B and Host D are receivers of
multicast group FF1E::102.
• MLDv1 runs on all the receivers and MLDv1 snooping runs on all the switches. Switch A, which is
close to the multicast sources, is chosen as the MLD snooping querier.
• To prevent flooding of unknown multicast traffic within the VLAN, configure all the switches to drop
unknown multicast data packets.