CLI Guide

32
Microsoft Network Load Balancing
Network load balancing (NLB) is a clustering functionality that is implemented by Microsoft on Windows
2000 Server and Windows Server 2003 operating systems. Microsoft NLB clustering allows multiple
servers running Microsoft Windows to be represented by one MAC and one IP address to provide
transparent failover and load-balancing. The Dell Networking OS does not recognize server clusters by
default; you must configure NLB functionality on a switch to support server clusters. The maximum NLB
entry limit from 8 to 11 is increased and support for more CAM-ACL to increase.
mac-address-table static (for Multicast MAC Address)
For multicast mode of network load balancing (NLB), configure a static multicast MAC address, associate
the multicast MAC address with the VLAN used to switch Layer 2 multicast traffic, and add output ports
that will receive multicast streams on the VLAN. To delete a configured static multicast MAC address from
the MAC address table on the router, enter the no mac-address-table static multicast-mac-
address
command.
Syntax
mac-address-table static multicast-mac-address multicast vlan
vlan-id range-output {single-interface | interface-list |
interface-range}
To remove a MAC address, use the no mac-address-table static
multicast-mac-address output interface vlan vlan-id command.
Parameters
multicast-mac-
address
Enter the 48-bit hexadecimal address in nn:nn:nn:nn:nn:nn
format.
multicast Enter a vlan port to where L2 multicast MAC traffic is
forwarded.
NOTE: Use this option if you want multicast
functionality in an L2 VLAN without IGMP protocols.
output interface For a multicast MAC address, enter the keyword output
then one of the following interfaces for which traffic is
forwarded:
• For a Port Channel interface, enter the keywords port-
channel
then a number. The range is from 1 to 128.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet then the slot/port information.
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Microsoft Network Load Balancing