Configuring Igmp - Allied Telesis SwitchBlade x3100 Series Manual

Configuring IGMP

The default behavior is that with IGMPSNOOPING disabled, the system will flood all MCAST. However, with
IGMPSNOOPING enabled, the system will automatically enter 224.0.0.1 and 224.0.0.2 as entries. The user then
has the option, using CLI commands, to add and delete these protocol forwarding addresses.
Protocol forwarding addresses can be displayed using the
5.3.3 Configuring IGMP
5.3.3.1 Default Configuration
When an SBx3112 switch is initially booted up, IGMP will be configured as follows:
The system-wide default setting for IGMP snooping is enabled.
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The per-interface default setting for IGMP snooping is enabled.
•
Flooding of unknowns default setting for IGMP snooping is disabled.
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5.3.3.2 Configuration Example
The following figure shows a simple configuration in which multiple SBx3112s are used. Systems B and C have a
switch that is configured with host with a number of Set Top Boxes (STB).
Software Reference for SwitchBlade x3100 Series Switches (Internet Group Management Pro-
tocol (IGMP))
SHOW IGMPSNOOPING FLOODING
Introduction
command.
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