Administrator Guide

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 congure 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.
Topics:
• mac-address-table static (for Multicast MAC Address)
• ip vlan-ooding
mac-address-table static (for Multicast MAC
Address)
For multicast mode of network load balancing (NLB), congure a static multicast MAC address, associate the multicast MAC address with
the VLAN used to switch Layer 2 multicast trac, and add output ports that will receive multicast streams on the VLAN. To delete a
congured 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 trac 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 trac is forwarded:
• For a Port Channel interface, enter the keywords port-channel then a number.
• For a 1-GigabitEthernet interface, enter the keyword GigabitEthernet then the
slot/port information.
•
For a 10-Gigabit Ethernet interface, enter the keyword TenGigabitEthernet then
the slot/port information.
output-range
interface
For a multicast MAC address, enter the keyword output-range then one of the
following interfaces to indicate a range of ports for which trac is forwarded:
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