L2 Functions > Multicast > Igmp Snooping - D-Link Web Smart Switch DGS-1210-16 Reference Manual

Configuration
From Port / To Port: A consecutive group of ports may be configured starting with the selected port.
Activity: There are two different roles of LACP ports:
Active - Active LACP ports are capable of processing and sending LACP control frames. This allows
LACP compliant devices to negotiate the aggregated link so the group may be changed dynamically
as needs require. In order to utilize the ability to change an aggregated port group, that is, to add or
subtract ports from the group, at least one of the participating devices must designate LACP ports as
active. Both devices must support LACP.
Passive - LACP ports that are designated as passive cannot initially send LACP control frames. In
order to allow the linked port group to negotiate adjustments and make changes dynamically, one
end of the connection must have "active" LACP ports.
Timeout: Specifies the administrative LACP timeout. The possible field values are:
Short (3 Sec) - Defines the LACP timeout as 3 seconds.
Long (90 Sec) - Defines the LACP timeout as 90 seconds. This is the default value.
Click Apply to implement the changes made.
L2 Functions > Multicast > IGMP Snooping
With Internet Group Management Protocol (IGMP) snooping, the Web Smart Switch can make intelligent
multicast forwarding decisions by examining the contents of each frame's Layer 2 MAC header.
IGMP snooping can help reduce cluttered traffic on the LAN. With IGMP snooping enabled globally, the Web
Smart Switch will forward multicast traffic only to connections that have group members attached.
The settings of IGMP snooping is set by each VLAN individually.
Figure 4.44 – L2 Functions > Link Aggregation > LACP Port Settings
D-Link Web Smart Switch User Manual
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