Allied-telesis AT-FS970M Series Manual de usuario Pagina 152

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Chapter 13: Internet Group Management Protocol (IGMP) Snooping
152
Figure 57. IGMP Snooping Page with Configuration Tab
3. Change the following settings as needed:
Status— Enable or disable IGMP Snooping. When you enable
IGMP, the switch begins to build its multicast tables as queries
from the multicast router and reports from the host nodes arrive on
its ports. When you disable IGMP, the switch floods the multicast
packets on all of the ports except the port that received the packet.
By default, the switch is set to “Disabled.”
Host Topology— Specify the IGMP host topology. Choose
between “Single” and “Multiple.” Select “Single” when the switch
has one host-node per port. Select “Multiple” when the switch has
more than one host-node per port. By default, the switch is set to
“Single.”
Host/Router Timeout— Specify the host/router time in seconds
that the switch times out when it finds inactive host nodes and
multicast routers. The range is from 0 to 86,400 seconds (24
hours). The default is 255 seconds. Setting the timeout to zero (0)
disables the timer.
Maximum Groups— Specify the maximum number of multicast
addresses the switch is allowed to learn. The range is 0 to 255
multicast addresses. The default is 64.
Router Ports Mode— Check a radio button to select the router
ports mode. Choose from the following:
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