Mld Snooping (Snooping And Query For Ipv4); Configuring Mld Snooping And Query Parameters; Figure 277: Configuring Igmp Filtering And Throttling Interface Settings - LevelOne GEL-1061 User Manual

MLD Snooping
(Snooping and Query for IPv4)
Configuring MLD
Snooping and Query
Parameters

Figure 277: Configuring IGMP Filtering and Throttling Interface Settings

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.
There are two versions of the MLD protocol, version 1 and version 2. MLDv1 control
packets include Listener Query, Listener Report, and Listener Done messages
(equivalent to IGMPv2 query, report, and leave messages). MLDv2 control packets
include MLDv2 query and report messages, as well as MLDv1 report and done
messages.
Remember that IGMP Snooping and MLD Snooping are independent functions,
and can therefore both function at the same time.
Use the Multicast > MLD Snooping > General page to configure the switch to
forward multicast traffic intelligently. Based on the MLD query and report
messages, the switch forwards multicast traffic only to the ports that request it. This
prevents the switch from broadcasting the traffic to all ports and possibly
disrupting network performance.
Parameters
These parameters are displayed:
◆
MLD Snooping Status – When enabled, the switch will monitor network traffic
to determine which hosts want to receive multicast traffic. (Default: Disabled)
◆
Querier Status – When enabled, the switch can serve as the querier for MLDv2
snooping if elected. The querier is responsible for asking hosts if they want to
receive multicast traffic. (Default: Disabled)

MLD Snooping (Snooping and Query for IPv4)

– 421 –
Chapter 14
| Multicast Filtering