D-Link DGS-3426P Product Manual - Page 178

xStack® DGS-3400 Series Layer 2 Gigabit Ethernet Managed Switch Figure 3 - 33 IGMP Snooping Static Group - Add window To modify an entry, click the corresponding Modify button, and the following window will be displayed. Figure 3 - 34 IGMP Static Group Modify window The following fields can be configured or viewed: Parameter Description VID VLAN Name IP Address This is the VLAN ID that, along with the VLAN Name, identifies the VLAN the user wishes to add. This is the VLAN Name that, along with the VLAN ID, identifies the VLAN the user wishes to add. The static group address for which to create IGMP snooping static group information. Port List The ports that will belong to this group. Action Specifies to Add or Delete the IGMP Static group entry. Click Apply to implement the changes. To return to the IGMP Snooping Static Group Settings window, click the Show All IGMP Snooping Static Group Entries link. ISM VLAN Settings In a switching environment, multiple VLANs may exist. Every time a multicast query passes through the Switch, the switch must forward separate different copies of the data to each VLAN on the system, which, in turn, increases data traffic and may clog up the traffic path. To lighten the traffic load, multicast VLANs may be incorporated. These multicast VLANs will allow the Switch to forward this multicast traffic as one copy to recipients of the multicast VLAN, instead of multiple copies. 169