Mld Snooping; Snooping Querier; Mroutes (Multicast Static Routes); Igmp (Internet Group Management Protocol) V2/V3 - Fujitsu PSWITCH 2048T User Manual

User's Guide FUJITSU PSWITCH
query and report messages, the switch forwards traffic only to the ports that
request the multicast traffic. This prevents the switch from broadcasting the traffic
to all ports and possibly affecting network performance.
Special attention should be brought to the IP address range 224.0.0.1 through
224.0.0.255, which is reserved for routing protocols and other low-level topology
discovery or maintenance protocols. For example, the address 224.0.0.1 is the all
hosts address, and 224.0.0.2 indicates all routers on this subnet.

3.1.3.2. MLD snooping

In IPv6, Multicast Listener Discover (MLD) snooping performs functions similar to
IGMP snooping in IPv4. With MLD snooping, IPv6 multicast data is selectively
forwarded to a list of ports that want to receive the data, instead of being flooded
to all ports in a VLAN. This list is constructed by snooping IPv6 multicast control
packets.
The switch can snoop on both MLDv1 and MLDv2 protocol packets and bridge IPv6
multicast data based on destination IPv6 Multicast MAC Addresses. The switch can
be configured to perform MLD Snooping and IGMP Snooping simultaneously.

3.1.3.3. Snooping querier

The IGMP/MLD Snooping Querier is an extension to the IGMP/MLD Snooping feature.
It enhances the switch capability to simulate an IGMP/MLD router in a Layer 2
network, thus removing the need to have an IGMP/MLD Router in a Layer 2
network to collect the Multicast group membership information. The querier
functionality is a small subset of the IGMP/MLD router functionality.

3.1.3.4. MRoutes (Multicast Static Routes)

The IP Multicast Static Route (MRoute) feature allows multicast paths to diverge
from the unicast paths.

3.1.3.5. IGMP (Internet Group Management Protocol) v2/v3

Internet Group Management Protocol (IGMP) is the multicast group membership
discovery protocol used for IPv4 multicast groups. Three versions of IGMP exist.
Versions one and two are widely deployed. Since IGMP is used between end
systems (often desktops) and the multicast router, the version of IGMP required
depends on the end-user operating system being supported. Any implementation
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