C
HAPTER
17
| Multicast Filtering
MLD Snooping (Snooping and Query for IPv6)
– 641 –
Figure 384: 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.
CLI REFERENCES
â—† "show ipv6 mld snooping group source-list" on page 1248
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
only both the request list and exclude list, indicating that the reception
of packets sent to the given multicast address is requested from all IP
source addresses, except for those listed in the exclude source-list and
for any other sources where the source timer status has expired.
◆ Filter Timer Elapse – The Filter timer is only used when a specific
multicast address is in Exclude mode. It represents the time for the
multicast address filter mode to expire and change to Include mode.
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