D-Link DXS-3600 Series Reference Manual page 101

DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch Web UI Reference Guide
clients will be forwarded to all the servers, but will only be processed by one of them. The server can work
in two different modes:
•
Unicast mode: The client uses a unicast MAC address as the destination MAC address to reach
the server.
•
Multicast mode: The client uses a multicast MAC address as the destination MAC address to
reach the server.
This destination MAC address is called the shared MAC address. However, the server uses its own MAC
address (rather than the shared MAC address) as the source MAC address in the reply packet. In other
words, a NLB unicast address usually is not the source MAC address of a packet.
When the received packet contains the destination MAC address matches the configured unicast MAC
address, it will be forwarded to those configured ports, regardless of the VLAN membership configuration.
Administrators cannot configure a static address of the MAC address table as a NLB address. However, if
a MAC address is created as a NLB MAC address entry, the same MAC address can be still dynamically
learnt in the Layer 2 MAC address table. In this situation, the NLB has higher priority; the dynamically
learnt FDB entry won't take effect.
To view the following window, click Management > NLB FDB Settings, as shown below:
The fields that can be configured in NLB FDB Settings are described below:
Parameter
NLB Type
VID
MAC Address
Unit
From Port ~ To Port
Click the Apply button to accept the changes made.
Click the Delete All button to delete all the entries found in the display table.
Click the Delete button to delete the specified entry.
Figure 4-82 NLB FDB Settings Window
Description
Select the NLB type here. Options to choose from are Unicast and
Multicast.
After selecting Multicast as the NLB type, enter the VLAN ID used in
this configuration here.
Enter the unicast or multicast MAC address of the entry here. If a
received packet contains a destination MAC address that matches the
specified MAC address, it will be forwarded to the specified interface.
Select the switch's unit ID that will be used here.
Select the switch's port range that will be used here.
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