D-Link DGS-3620-52P Web UI Reference Guide - Page 115

IGMP Snooping Rate Limit Settings

Page 115 highlights

xStack® DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch Web UI Reference Guide message. State If the state is enabled, it allows the switch to be selected as a IGMP Querier (sends IGMP query packets). If the state is disabled, then the switch can not play the role as a querier. NOTE: that if the Layer 3 router connected to the switch provides only the IGMP proxy function but does not provide the multicast routing function, then this state must be configured as disabled. Otherwise, if the Layer 3 router is not selected as the querier, it will not send the IGMP query packet. Since it will not also send the multicast-routing protocol packet, the port will be timed out as a router port. Version Specify the version of IGMP packet that will be sent by this port. If an IGMP packet received by the interface has a version higher than the specified version, this packet will be forwarded from the router ports or VLAN flooding. Click the Apply button to accept the changes made. Click the

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xStack
®
DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch
Web UI Reference Guide
105
message.
State
If the state is enabled, it allows the switch to be selected as a IGMP Querier (sends
IGMP query packets). If the state is disabled, then the switch can not play the role
as a querier.
NOTE:
that if the Layer 3 router connected to the switch provides only the IGMP
proxy function but does not provide the multicast routing function, then this
state must be configured as disabled. Otherwise, if the Layer 3 router is not
selected as the querier, it will not send the IGMP query packet. Since it will
not also send the multicast-routing protocol packet, the port will be timed out
as a router port.
Version
Specify the version of IGMP packet that will be sent by this port. If an IGMP packet
received by the interface has a version higher than the specified version, this
packet will be forwarded from the router ports or VLAN flooding.
Click the
Apply
button to accept the changes made.
Click the
<<Back
button to discard the changes made and return to the previous page.
After clicking the
Modify Router Port
link, the following page will appear:
Figure 4-56 IGMP Snooping Router Port Settings window
The fields that can be configured are described below:
Parameter
Description
Unit
Select the unit you want to configure.
Static Router Port
This section is used to designate a range of ports as being connected to multicast-
enabled routers. This will ensure that all packets with such a router as its destination
will reach the multicast-enabled router regardless of the protocol.
Forbidden Router Port
This section is used to designate a range of ports as being not connected to
multicast-enabled routers. This ensures that the forbidden router port will not
propagate routing packets out.
Dynamic Router Port
Displays router ports that have been dynamically configured.
Click the
Select All
button to select all the ports for configuration.
Click the
Clear All
button to unselect all the ports for configuration.
Click the
Apply
button to accept the changes made.
Click the
<<Back
button to discard the changes made and return to the previous page.
IGMP Snooping Rate Limit Settings
On this page the user can configure the IGMP snooping rate limit parameters.
To view the following window, click
L2 Features > L2 Multicast Control > IGMP Snooping > IGMP Snooping
Rate Limit Settings
, as show below: