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Stackable NWay Ethernet Switch User’s Guide
68 Using the Console Interface
To access the
IGMP Configuration
screen, select
Configure Filtering and Forwarding Table
from the
System Configuration
menu. Then select
Configure IGMP
from the bottom of the
Configure Filtering
and Forwarding table
screen. The following screen appears:
Figure 6-24. IGMP Configuration screen
Items in the above window are defined as follows:
♦
IP Multicast Filtering Age-out Timer (30-9999)
When this timer expires and the switch has not
observed (snooped) any IGMP query packets asking whether any stations belong to any Multicast groups,
the switch itself will send out queries and become the IGMP host on your network.
♦
IP Multicast Filtering (IGMP Snooping)
This enables/disables the switch to intelligently forward
IGMP and Multicast packets instead of broadcasting (flooding) them on all ports. This setting also enables
IGMP Snooping, which enables the switch to read IGMP packets being forwarded through the switch in
order to obtain forwarding information from them (learn which ports contain Multicast members).
The bottom of this screen contains a command for VLAN settings that leads to the
IEEE 802.1q IGMP
Configuration
menu. Highlight
Configure 802.1Q IGMP
and press Enter to access this screen: