DES-3550 Layer 2 Fast Ethernet Switch User’s Guide
48
IGMP
Internet Group Management Protocol (IGMP) snooping allows the Switch to recognize
IGMP queries and reports sent between network stations or devices and an IGMP host. When
enabled for IGMP snooping, the Switch can open or close a port to a specific device based on
IGMP messages passing through the Switch.
In order to use IGMP Snooping it must first be enabled for the entire Switch (see
Advanced
Settings). You may then fine-tune the settings for each VLAN using the IGMP Snooping
link in the Configuration folder. When enabled for IGMP snooping, the Switch can open or
close a port to a specific Multicast group member based on IGMP messages sent from the
device to the IGMP host or vice versa. The Switch monitors IGMP messages and discontinues
forwarding multicast packets when there are no longer hosts requesting that they continue.
IGMP Snooping
Use the Current IGMP Snooping Group Entries window to view IGMP Snooping settings.
To modify the settings, click the Modify button of the VLAN ID you want to change.
Figure 6- 7. Current IGMP Snooping Group Entries
Clicking the Modify button will bring up the
IGMP Snooping Settings
menu.
Figure 6- 8. IGMP Snooping Settings window
The following parameters may be viewed or modified:
To Next Page
Loading...
