Hirschmann MS30, Power MICE, MACH 4000, OCTOPUS, User Manual

Page: 113 / 196

Traffic control
Layer 2 Enhanced with Layer 2 Professional
Release 1.0 10/05
8.2 Multicast application
111
U
IGMP Forward All per port
This column of the table allows you to switch on/off the IGMP Snoo-
ping function “Forward All” when the global IGMP Snooping is swit-
ched on. With the “Forward All” setting, the Switch forwards all the
data packets with a Multicast address in the target address field to
this port.
Note: If a number of routers are connected to a subnetwork, then you
must use IGMP version 1, so that all the routers receive all the IGMP
reports.
Note: If you use IGMP version 1 in a subnetwork, then you must also
use IGMP version 1 in the entire network.
U
Static Query Port
A Switch sends IGMP report messages to the ports at which it
receives IGMP queries. This column allows you to also send IGMP
report messages to other selected ports.
U
Learned Query Port
A Switch sends IGMP report messages to the ports at which it
receives IGMP queries. This column displays the ports on which the
Switch has received IGMP queries.
U
GMRP per port
This table column enables you to switch on/off the GMRP for each
port when the global GMRP is switched on. When you switch off the
GMRP at a port, no registrations can be made for this port, and
GMRP packets cannot be sent out of this port.
Note: If the Switch is connected to a HIPER-Ring, in the case of a ring
interruption you can ensure quick reconfiguration of the network for data
packets with registered multicast target addresses by:
D
switching on the IGMP at the ring ports and globally, and
D
switching on the “IGMP Forward All” per port on the ring ports.