TRENDnet TL2-FG142, User Manual

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TRENDnet User’s Guide
TL2-FG142
55
4.3.18 IPMC
4.3.18.1 IGMP Snooping-Base Cfg
IGMP snooping is the process of listening to Internet Group Management Protocol
(IGMP) network traffic. The feature allows a network switch to listen in on the IGMP
conversation between hosts and routers. By listening to these conversations the switch
maintains a map of which links need which IP multicast streams. Multicasts may be
filtered from the links which do not need them and thus controls which ports receive
specific multicast traffic.
This page provides IGMP Snooping related configuration.
Items Description
Snooping
Enabled Enable the Global IGMP Snooping
Unregistered
IPMCv4
Flooding
Enabled Enable unregistered IPMCv4 traffic flooding.
The flooding control takes effect only when IGMP Snooping is enabled.
When IGMP Snooping is disabled, unregistered IPMCv4 traffic flooding is
always active in spite of this setting.
IGMP SSM
Range SSM (Source-Specific Multicast) Range allows the SSM-aware hosts and
routers run the SSM service model for the groups in the address range.
Leave Proxy
Enabled Enable IGMP Leave Proxy. This feature can be used to avoid forwarding
unnecessary leave messages to the router side.
Proxy
Enabled Enable IGMP Proxy. This feature can be used to avoid forwarding
unnecessary join and leave messages to the router side.
Port Related Configuration
Items Description
Router Port Specify which ports act as router ports. A router port is a port on the
Ethernet switch that leads towards the Layer 3 multicast device or IGMP
querier.
If an aggregation member port is selected as a router port, the whole
aggregation will act as a router port.
Fast Leave Enable the fast leave on the port.
Throttling Enable to limit the number of multicast groups to which a switch port
can belong.
Button
Click to save changes.
Click to undo any changes made locally and revert to previously saved values.
4.3.18.2 IGMP Snooping-VLAN Cfg
Navigating the IGMP Snooping VLAN Table
Each page shows up to 99 entries from the VLAN table, default being 20, selected
through the "entries per page" input field. When first visited, the web page will show
the first 20 entries from the beginning of the VLAN Table. The first displayed will be the
one with the lowest VLAN ID found in the VLAN Table.