Mld Snooping; Configuring Global And Port-Related Settings For Mld Snooping - SMC Networks SMCGS10C-SMART Management Manual

| Configuring the Switch
C 4
HAPTER

MLD Snooping

MLD S
NOOPING
C G
ONFIGURING LOBAL
P -R
AND ORT ELATED
S MLD
ETTINGS FOR
S
NOOPING
Multicast Listener Discovery (MLD) snooping operates on IPv6 traffic and
performs a similar function to IGMP snooping for IPv4. That is, MLD
snooping dynamically configures switch ports to limit IPv6 multicast traffic
so that it is forwarded only to ports with users that want to receive it. This
reduces the flooding of IPv6 multicast packets in the specified VLANs.
This switch supports MLD protocol version 1. MLDv1 control packets
include Listener Query, Listener Report, and Listener Done messages
(equivalent to IGMPv2 query, report, and leave messages).
Remember that IGMP Snooping and MLD Snooping are independent
functions, and can therefore both function at the same time.
Use the MLD Snooping Configuration page to configure global and port-
related settings which control the forwarding of multicast traffic. Based on
the MLD query and report messages, the switch forwards traffic only to the
ports that request multicast traffic. This prevents the switch from
broadcasting the traffic to all ports and possibly disrupting network
performance.
If multicast routing is not supported on other switches in your network, you
can use MLD Snooping and Query to monitor MLD service requests passing
between multicast clients and servers, and dynamically configure the
switch ports which need to forward multicast traffic.
Multicast routers use information from MLD snooping and query reports,
along with a multicast routing protocol such as PIMv6, to support IP
multicasting across the Internet.
P
ATH
Configuration, IPMC, MLD Snooping, Basic Configuration
P
ARAMETERS
These parameters are displayed:
Global Configuration
Snooping Enabled - When enabled, the switch will monitor network
◆
traffic to determine which hosts want to receive multicast traffic.
(Default: Disabled)
This switch can passively snoop on MLD Listener Query and Report
packets transferred between IP multicast routers/switches and IP
multicast host groups to identify the IP multicast group members. It
simply monitors the MLD control packets passing through it, picks out
the group registration information, and configures the multicast filters
accordingly.
Unregistered IPMCv6 Flooding Enabled - Floods unregistered
◆
multicast traffic into the attached VLAN. (Default: Enabled)
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