LevelOne GTL-2691 - Manual (Page 549)

C HAPTER 15 | Multicast Filtering
Layer 3 IGMP (Query used with Multicast Routing)
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◆ The system periodically checks the multicast route table for (*,G) any-
source multicast forwarding entries. When changes occur in the
downstream IGMP groups, an IGMP state change report is created and
sent to the upstream router.
◆ If there is an IGMPv1 or IGMPv2 querier on the upstream network, then
the proxy device will act as an IGMPv1 or IGMPv2 host on the upstream
interface accordingly, and set the v1/v2 query present timer to indicate
that there is an active v1/v2 querier in this VLAN. Otherwise, it will act
as an IGMPv3 host.
◆ Multicast routing protocols are not supported when IGMP proxy service
is enabled.
◆ Only one upstream interface is supported on the system.
◆ A maximum of 1024 multicast entries are supported.
P ARAMETERS
These parameters are displayed:
◆ VLAN – VLAN interface on which to configure IGMP proxy service.
(Range: 1-4093)
◆ IGMP Proxy Status – Enables IGMP proxy service for multicast
routing, forwarding IGMP membership information monitored on
downstream interfaces onto the upstream interface in a summarized
report. (Default: Disabled)
◆ Unsolicited Report Interval – Specifies how often the upstream
interface should transmit unsolicited IGMP reports. (Range: 1-65535
seconds; Default: 400 seconds)
W EB I NTERFACE
To configure IGMP Proxy Routing:
1.
Click Multicast, IGMP, Proxy.
2.
Select the upstream interface, enable the IGMP Proxy Status, and
modify the interval for unsolicited IGMP reports if required.
3. Click Apply.
Figure 320: Configuring IGMP Proxy Routing