Intellinet 523868, Руководство пользователя

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Select a port from the selection panel or select an existing group address from the window list.
MAC Address:
Assign the multicast address.
CoS: Assign the priority for the Class of Service of VlAN frames.
VLAN ID: Select the VlAN group (a VlAN-based feature).
Click “Submit” to commit the settings. Click “Refresh” to display current switch settings. To
eventually make all changes permanent in Flash memory, click on “Save Configuration” (listed
at the bottom of the Configuration Menu) and click “Save.”
2.2.7.6 IGMP Snooping
This screen — with subsections of
Setting and Multicast Group, which
displays current settings — provides
options that help reduce the multicast
traffic on the network by allowing the
IGMP snooping function to be turned
on or off.
2.2.7.6.1 Setting
Enable IGMP Snooping: Select to
globally enable IGMP snooping in
all existing VLAN interfaces. By
default, IGMP snooping is globally
enabled on the switch. If global
snooping is disabled, you cannot enable VlAN snooping. If global snooping is enabled, you
can enable or disable VlAN snooping.
Last Member Query Interval: Without Immediate leave (see below), when the switch receives
an IGMP leave message from a subscriber on a receiver port, it sends out an IGMP query
on that port and waits for IGMP group membership reports. If no reports are received in a
configured time period, the receiver port is removed from multicast group membership.
Status: If global snooping is enabled, you can enable or disable VlAN snooping.
Immediate Leave: When enabled, the switch immediately removes a port when it detects an
IGMP version 2 leave message on that port. You should use the Immediate leave feature
only when there is a single host present on every port in the VlAN. Immediate leave is
supported with only IGMP version 2 hosts.
If the static entries occupy all 256 spaces, IGMP snooping normally does not work. The switch
only allows 256 layer 2 multicast groups.
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