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.
Topics:
•
arp (for Multicast MAC Address)
•
mac-address-table static (for Multicast MAC Address)
•
arp (for Multicast MAC Address)
To associate an IP address with a multicast MAC address in the switch when you configure multicast mode of network load balancing
(NLB), use address resolution protocol (ARP).
Syntax
arp
ip-address multicast-mac-address interface
To remove an ARP address, use the
no arp ip-address
command.
Parameters
ip-address
Enter an IP address in dotted decimal format.
multicast-mac-
address
Enter a 48-bit hexadecimal address in nn:nn:nn:nn:nn:nn format for the static MAC
address to be used to switch multicast traffic.
interface
Enter any of the following keywords and slot/port or number information:
•
For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet
then
the stack/slot/port/subport information.
•
For a 25-Gigabit Ethernet interface, enter the keyword
twentyFiveGigE
then the
stack/slot/port/subport information.
•
For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE
then the stack/
slot/port[/subport] information.
•
For a 50-Gigabit Ethernet interface, enter the keyword
fiftyGigE
then the stack/
slot/port/subport information.
•
For a 100-Gigabit Ethernet interface, enter the keyword
hundredGigE
then the
stack/slot/port information.
•
For a port channel interface, enter the keywords
port-channel
then a number.
•
The interface specified here must be one of the interfaces configured using the
{output-range | output}
interface
option with the
mac-address-
table static
command.
Defaults
Not configured.
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Microsoft Network Load Balancing
