Delta DVS-G928 series, Руководство пользователя

Страница: 89 / 206

C h a p t e r 3 F e a t u r e d F u n c t i o n s
3 - 7 1
_3
IGMP Snooping manages multicast traffic by making use of switches, routers, and hosts that support IGMP. Enabling
IGMP Snooping allows the ports to detect the IGMP queries, report packets, and manage multicast traffic through the
switch. IGMP has three fundamental types of messages, as shown below:
Item Description
Query
A message is sent from the querier (an IGMP router or a switch) which asks for
a response from each host that belongs to the multicast group.
Report
A message is sent by a host to the querier to indicate that the host wants to be
or is a member of a given group indicated in the report message.
Leave Group
A message is sent by a host to the querier to indicate that the host has quit as a
member of a specific multicast group.
3.8.1 IGMP Snooping
On this page, you can enable or disable IGMP Snooping. And it displays the VLAN which enables the IGMP Snooping
function.
3.8.1.1 Basic Configuration

Global Configuration
Description Factory default
Snooping Enabled
Specify the status of IGMP Snooping:

Unchecked: The IGMP Snooping is disabled. The IGMP setting still can be
configured, but the settings do not take effect after you have applied them.

Checked: The IGMP Snooping is enabled. The switch snoop all the IGMP
packets it receives to determine which segments should receive the packets
directed to the group address.
Unchecked
Unregistered IPMCv4 Flooding Enabled
Specify the status of unregistered IPMC traffic flooding:

Unchecked: The unregistered IPMC traffic flooding is disabled.

Checked: The unregistered IPMC traffic flooding is enabled.
Checked