Nlb Fdb Settings - D-Link xStack DGS-3620 Series Reference Manual

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xStack DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch Web UI Reference Guide

NLB 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. In multicast mode,
the client uses a multicast MAC address as the destination MAC to reach the server. Regardless of the mode, 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.
To view this window, click L2 Features > NLB FDB Settings, as shown below:
The fields that can be configured are described below:
Parameter
Unicast
Multicast
VLAN Name
VID
MAC Address
Unit
Port
Click the Clear All button to clear out all the information entered.
Click the Apply button to accept the changes made.
Figure 5-131 NLB FDB Settings window
Description
Click to create an NLB unicast FDB entry.
Click to create an NLB multicast FDB entry.
Click the radio button and enter the VLAN name of the NLB multicast FDB entry to
be created.
Click the radio button and enter the VLAN by the VLAN ID.
Enter the MAC address of the NLB multicast FDB entry to be created.
Select the switch unit to configure.
Choose the forwarding ports for the specified NLB multicast FDB entry.
None – The port is not the forwarding port. Click the All button to select all the
ports.
Egress - The port is the forwarding port. Click the All button to select all the ports.
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