iES26GF
User’s
Manual
UM-iES26GF-1.2.3-EN.docx
Pages 100 of 169
5.8
Multicast
The Internet Group Management Protocol (IGMP) is used by IP hosts to register their dynamic
multicast group membership. IGMP has 3 versions: IGMP v1, v2 and v3. For details, refer to RFC
1112, 2236 and 3376. IGMP Snooping improves the performance of networks that carry multicast
traffic. It provides the ability to trim multicast traffic so that it travels only to its intended end
destinations. This reduces the amount of traffic on the Ethernet LAN.
IGMP Snooping Basic Configuration
This page provides IGMP Snooping related configuration s.
Figure 105 - IGMP Snooping Configuration interface
The following table describes the labels for the
IGMP Snooping Configuration
screen.
Label
Description
Snooping Enabled
Check to enable global IGMP snooping
Unregistered
IPMCv4 Flooding
enabled
Check to 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 despite this
setting.
Router Port
Specifies 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
Snooping Querier.
If an aggregation member port is selected as a router port, the whole
aggregation will act as a router port.
Fast Leave
Check to enable
Fast Leave
on the port
Save
Click
Save
to save changes.
Reset
Click
Reset
to undo any changes made locally and revert to previously
saved values.
