9.1.1
Snooping Config
To configure the IGMP Snooping on the switch, please firstly configure IGMP global
configuration and related parameters on this page.
If the multicast address of the received multicast data is not in the multicast address table, the
switch will broadcast the data in the VLAN. When Unknown Multicast Discard feature is enabled,
the switch drops the received unknown multicast so as to save the bandwidth and enhance the
process efficiency of the system. Please configure this feature appropriate to your needs.
Choose the menu
Multicast
→
IGMP Snooping
→
Snooping Config
to load the following page.
Figure 9-4 Basic Config
The following entries are displayed on this screen:
Global Config
IGMP Snooping:
Enable or disable IGMP Snooping function globally on the
switch.
Unknown Multicast:
Configure the way how the switch processes the multicast data
sent to unknown multicast groups as Forward or Discard.
Unknown multicast groups are multicast groups whose
destination multicast address is not in the multicast forwarding
table of the switch.
Header Validation:
Select Enable/Disable the validation of 2 IGMP header fields ToS
(Type of Service) and Router Alert options. The fields validated
depend on the IGMP version being used. Regardless of whether
open the validation, TTL(Time To Live) must be 1.
•IGMPv2
- Router Alert fields are validated.
•IGMPv3
- ToS and Router Alert fields are validated
IGMP Snooping Status
Description:
Displays IGMP Snooping status.
Member:
Displays the member of the corresponding status.
134