Panasonic ZEQUO 2200, Operating Instructions Manual

Page: 391 / 726

43. Network Load Balancing (NLB) Commands
391
43.Network Load Balancing (NLB)
Commands
NLB is a load balancing function in Windows Server. It assigns the same
virtual IP address to multiple servers providing the same services and
uniformly distributes accesses from the clients.
NLB has the unicast mode and multicast mode. In the multicast mode, if the
destination MAC address from the client is a multicast MAC address, data
may not be transferred.
In this case, you need to register the actual MAC address of the NLB server
in the forwarding table.
43.1. create nlb multicast_fdb

Description
This command is used to create the Switch's NLB multicast FDB entry. The network load
balancing command set is used to support 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 use the multicast MAC address as the destination MAC to reach
the server. Regarding of the mode, this destination MAC is the named the shared MAC.
The server uses its own MAC address (rather than the shared MAC) as the source MAC
address of the reply packet.

Format
create nlb multicast_fdb [<vlan_name 32> | vlanid <vlanid>] <macaddr>
 Parameters
create nlb multicast_fdb [<vlan_name 32> | vlanid <vlanid>] <macaddr>
delete nlb multicast_fdb [<vlan_name 32> | vlanid <vlanid>] <macaddr>
config nlb multicast_fdb [<vlan_name 32> | vlanid <vlanid>] <macaddr> [add | delete] <portlist>
show nlb fdb
<vlan_name 32>
Enter the VLAN name of the NLB multicast FDB entry here. This name can be up to 32
characters long.
vlanid Specifies the VLAN ID used.
<vlanid>
Enter the VLAN ID used here.