Advantech EKI-9228G-8CMI, User Manual

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EKI-9228G Series User Manual 178
4.4.8.3 VLAN Status
Use the IGMP Snooping VLAN Status page to enable or disable IGMP snooping on
system VLANs and to view and configure per-VLAN IGMP snooping settings. Only
VLANS that are enabled for IGMP snooping appear in the table.
To access this page, click Switching > IGMP Snooping > VLAN Status.
Figure 4.192 Switching > IGMP Snooping > VLAN Status
The following table describes the items in the previous figure.
Refresh Click Refresh to update the screen.
Edit Click Edit to edit the selected entries.
Item Description
Item Description
VLAN ID The VLAN associated with the rest of the data in the row. When
enabling IGMP snooping on a VLAN, use this menu to select the
desired VLAN. Only VLANs that have been configured on the system
and are not already enabled for IGMP snooping appear in the menu.
When modifying IGMP snooping settings, this field identifies the
VLAN that is being configured.
Admin Mode The administrative mode of IGMP snooping on the VLAN. IGMP
snooping must be enabled globally and on an VLAN for the VLAN to
be able to snoop IGMP packets to determine which network segments
should receive multicast packets directed to the group address.
Fast Leave Admin
Mode The administrative mode of Fast Leave on the VLAN. If Fast Leave is
enabled, the VLAN can be immediately removed from the layer 2 for-
warding table entry upon receiving an IGMP leave message for a mul-
ticast group without first sending out MAC-based general queries.
Group Membership
Interval (Seconds) The number of seconds the VLAN should wait for a report for a partic-
ular group on the VLAN before the IGMP snooping feature deletes the
VLAN from the group.
Max Response Time
(Seconds) The number of seconds the VLAN should wait after sending a query if
it does not receive a report for a particular group. The specified value
should be less than the Group Membership Interval.
Multicast Router
Expiration Time (Sec-
onds) The number of seconds the VLAN should wait to receive a query
before it is removed from the list of VLANs with multicast routers
attached.
Report Suppression
Mode The IGMPv1 and IGMPv2 report suppression mode. The device uses
IGMP report suppression to limit the membership report traffic sent to
multicast-capable routers. When this mode is enabled, the device
does not send duplicate reports to the multicast router. Note that this
mode is supported only when the multicast query has IGMPv1 and
IGMPv2 reports. This feature is not supported when the query
includes IGMPv3 reports. The options are as follows:

Enabled: Only the first IGMP report from all hosts for a group
IGMP report is forwarded to the multicast routers.

Disabled: The device forwards all IGMP reports from all hosts in
a multicast group to the multicast routers.
Refresh Click Refresh to update the screen.