Chapter 14
| Multicast Filtering
MLD Snooping (Snooping and Query for IPv6)
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To display information about all IPv6 multicast groups, MLD Snooping or multicast
routing must first be enabled on the switch. To show all of the interfaces statically
or dynamically assigned to an IPv6 multicast service:
1. Click Multicast, MLD Snooping, MLD Member.
2. Select Show Current Member from the Action list.
3. Select the VLAN for which to display this information.
Figure 363: Showing Current Interfaces Assigned to an IPv6 Multicast Service
Showing MLD
Snooping Groups
and Source List
Use the Multicast > MLD Snooping > Group Information page to display known
multicast groups, member ports, the means by which each group was learned, and
the corresponding source list.
Parameters
These parameters are displayed:
◆ VLAN – VLAN identifier. (Range: 1-4094)
◆ Interface – Port or trunk identifier.
◆ Group Address – The IP address for a specific multicast service.
◆ Type – The means by which each group was learned – MLD Snooping or
Multicast Data.
◆ Filter Mode – The filter mode is used to summarize the total listening state of a
multicast address to a minimum set such that all nodes' listening states are
respected. In Include mode, the router only uses the request list, indicating that
the reception of packets sent to the specified multicast address is requested
only from those IP source addresses listed in the hosts’ source-list. In Exclude
mode, the router uses both the request list and exclude list, indicating that the
reception of packets sent to the given multicast address is requested from all IP
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