Layer 3 Extensions Menu Screen Menu Item Descriptions; Igmp/Vlan Configuration Screen - Enterasys SmartSwitch 6000 User Manual

Menu Descriptions
Refer to Table 10-1
menu item).
Table 10-1 Layer 3 Extensions Menu Screen Menu Item Descriptions
Menu Item
IGMP/VLAN
CONFIGURATION

10.2 IGMP/VLAN CONFIGURATION SCREEN

When to Use
The IGMP/VLAN Configuration screen,
Group Management Protocol, RFC 2236) on selected VLANs, or globally on all VLANs that are
available.
IGMP Snooping provides a solution for handling multicast streams in layer 3 routers. IGMP is for
hosts on multi-access networks to inform locally attached switches of their Multicast group
membership information. This is performed by hosts multicasting IGMP Host Membership
Reports. Multicast switches listen for these messages and then pass them to other switches. This
allows distribution trees to be formed to deliver multicast datagrams.
Information from the IGMP packets is used to send the multicast stream only to the end stations
that request it.
IGMP is enabled or disabled by VLAN, not port by port.
NOTE: Certain versions of firmware will not allow the switch to be a querier. Please
check your release notes for further information. Refer to RFC 2236, Section 8, for more
information on IGMP.
for a functional description of each menu item (at this time there is only one
Screen Function
Used to enable or disable IGMP (Internet Group Management
Protocol) on selected VLANs. For details, refer to
Figure 10-2, is used to enable or disable IGMP (Internet
Layer 3 Extensions Menu Screens
IGMP/VLAN Configuration Screen
Section 10.2.
10-3