D-Link DGS-3612G Product Manual - Page 182

xStack® DGS-3600 Series Layer 3 Managed Gigabit Ethernet Switch NLB Multicast FDB Settings The Switch supports Network Load Balancing (NLB). This is a MAC forwarding control for supporting the Microsoft server load balancing application where multiple servers can share the same IP address and MAC address. The requests from clients will be forwarded to all servers, but will only be processed by one of them. The server can work in two different modes - unicast mode and multicast mode. In unicast mode, the client uses a unicast MAC address as the destination MAC to reach the server. In multicast mode, the client uses a multicast MAC address as the destination MAC to reach the server. The destination MAC is the shared MAC. The server uses its own MAC address (rather than the shared MAC) as the source MAC address of the reply packet.The NLB multicast FDB entry will be mutually exclusive with the L2 multicast entry. At the current time, only multicase mode is supported. To view this window, click L2 Features > NLB Multicast FDB Settings, as shown below: Figure 3- 82. NLB Multicast FDB Table window To remove an entry from the table, click its corresponding under the Delete heading. Clicking the Add button will reveal the following window to configure: Figure 3- 83. NLB Multicast FDB Settings - Add window The following fields can be set: Parameter Description VLAN Name Click the radio button and enter the VLAN of the NLB multicast FDB entry to be created. VID (1-4094) Click the radio button and enter the VLAN by the VLAN ID. MAC Address Enter the MAC address of the NLB multicast FDB entry to be created. Click Apply to create a new entry. To view the NLB Multicast FDB Table, click the hyperlinked Show All NLB Multicast FDB Entries. 166