Settings Per Port (Table) - Hirschmann RS20 Reference Manual

Switching
"Send to registered ports".
The device sends the packets with a known MAC/IP Multicast address to
registered ports.
The advantage of this setting, which deviates from the standard, is that it
uses the available bandwidth optimally through direct distribution. It re-
quires additional port settings.
Application: Routing protocol PIM-SM.

5.3.4 Settings per port (table)

IMGP on per port
This table column enables you to enable/disable the IGMP for each port
when the global IGMP Snooping is enabled. Disabling the IGMP at a port
prevents registration for this port.
IGMP Forward All per port
This table column enables you to enable/disable the "Forward All" IGMP
Snooping function for each port when the global IGMP Snooping is en-
abled. With the "Forward All" function, the device sends to this port all
data packets with a Multicast address in the destination address field.
Note: If a number of routers are connected to a subnetwork, you must use
IGMP version 1 so that all the routers receive all the IGMP reports.
Note: If you are using IGMP version 1 in a subnetwork, you must also use
IGMP version 1 in the entire network.
IGMP Automatic Query Port
This table column shows you which ports the device has learned as query
ports, if "automatic" is selected in "Static Query Port".
Note: If the device is connected to a HIPER-Ring, in the case of a ring inter-
ruption you can ensure quick reconfiguration of the network for data packets
with registered Multicast destination addresses by:
enabling IGMP on the ring ports and globally, and
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5.3 Multicasts
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