Module 9: Installing and Configuring Network Load Balancing

Overview Pre-Installation Network Load Balancing Driver Installation Configuring the Network Load Balancing Driver Cluster Parameters Host Parameters Port Rules TCP/IP Properties Post-Installation Configuration

 Pre-Installation Verify that aggregate subnet throughput supports IP traffic Verify that the throughput of each host is documented Verify that cluster members support client throughput Verify that all IP addresses are manually allocated Verify that TCP/IP is bound to the network card

Hardware Considerations No special hardware requirements Ethernet or FDDI All hosts on one broadcast subnet All host on one Level 2 switch or VLAN All hosts on a single hub or repeater Two NICs per host preferred: One NIC for cluster traffic and heartbeats One NIC for replications/backend access

Controlling Switch Flooding Hosts on individual ports results in switch flooding Hosts on a hub limits switch flooding Cluster host Non-Cluster host Layer 2 switch Layer 1 hub Hub Cluster host Non-Cluster host Layer 2 switch

Network Load Balancing Driver Installation Select Driver Configure – Cluster Parameters Host Parameters Port Rules Exit Dialog Box NLB Cluster Host 1 Properties General Connect using: Configure Description Sharing Intel® PRO/100+ Management Adapter Components checked are used by this connection: Client for Microsoft Networks Network Load Balancing Network Monitor Driver Internet Protocol (TCP/IP) Install…UninstallProperties This component provides TCP/IP load balancing functionality. Show icon in taskbar when connected Cancel Close

Configuring the Network Load Balancing Driver Port Rules control response to traffic Host Parameters apply to default traffic Cluster Parameters apply to the cluster Network Load Balancing Properties Cluster Parameters Primary IP address Subnet mask Full Internet namecluster.domain.com Network address02-bf Multicast supportenabled Remote password Confirm password Remote controlenabled Please consult on-line help for configuration information Host Parameters OK Port Rules Help Cancel

Cluster Parameters Set Cluster IP Set Cluster Internet name Select Multicast Enable Remote Control Network Load Balancing Properties Cluster Parameters Primary IP address Subnet mask Full Internet namecluster.domain.com Network address02-bf Multicast supportenabled Remote password Confirm password Remote controlenabled Please consult on-line help for configuration information Host Parameters OK Port Rules Help Cancel

Selecting Unicast or Multicast Mode Unicast Mode Multicast Mode Host Communication

Host Parameters Set Unique ID Set initial state Set Dedicated IP Address Network Load Balancing Properties Cluster Parameters Priority (Unique host ID) 1 Initial cluster stateactive Dedicated IP address Subnet mask Host Parameters OK Port Rules Cancel

 Port Rules Set Port Range and Protocol for this rule Set or Modify parameters Add, Modify, or Remove a rule Select or view list of rules Network Load Balancing Properties Cluster Parameters Port range80to80 Host Parameters Port Rules ProtocolsTCPUDPBoth Filtering mode Multiple hosts Single host Disabled AffinityNoneSingleClass C Load weight50orEqual Handling priority1 AddModifyRemove StartEndProtocolModePriorityLoadAffinity 8080BothMultipleEqualNone BothMultipleEqualNone

Filtering Mode Set Filtering mode For Single Host set Handling Priority Network Load Balancing Properties Cluster Parameters Port range80to80 Host Parameters Port Rules ProtocolsTCPUDPBoth Filtering mode Multiple hosts Single host Disabled AffinityNoneSingleClass C Load weight50orEqual Handling priority1 AddModifyRemove StartEndProtocolModePriorityLoadAffinity 8080BothMultipleEqualNone BothMultipleEqualNone

Affinity Select Affinity mode for client IP Network Load Balancing Properties Cluster Parameters Port range80to80 Host Parameters Port Rules ProtocolsTCPUDPBoth Filtering mode Multiple hosts Single host Disabled AffinityNoneSingleClass C Load weight50orEqual Handling priority1 AddModifyRemove StartEndProtocolModePriorityLoadAffinity 8080BothMultipleEqualNone BothMultipleEqualNone

Load Weighting and Priority Select equal load distribution or manual load distribution Network Load Balancing Properties Cluster Parameters Port range80to80 Host Parameters Port Rules ProtocolsTCPUDPBoth Filtering mode Multiple hosts Single host Disabled AffinityNoneSingleClass C Load weight50orEqual Handling priority1 AddModifyRemove StartEndProtocolModePriorityLoadAffinity 8080BothMultipleEqualNone BothMultipleEqualNone

TCP/IP Properties Enter cluster dedicated IP address for single NIC configuration, enter primary IP or dedicated IP addresses for multiple NIC configurations Enter additional IP addresses in the Advanced dialog box Internet Protocol (TCP/IP) Properties General You can get IP settings assigned automatically if your network supports this capability. Otherwise, you need to ask your network administrator for the appropriate IP settings. OKCancel Obtain an IP address automatically Use the following IP address: IP address Subnet mask Default gateway Advanced… Obtain DNS server address automatically Use the following DNS server addresses: Preferred DNS server: Alternate DNS server:

Post-Installation Configuration Internet Protocol (TCP/IP) Properties General You can get IP settings assigned automatically if your network supports this capability. Otherwise, you need to ask your network administrator for the appropriate IP settings. OKCancel Obtain an IP address automatically Use the following IP address: IP address Subnet mask Default gateway Advanced… Obtain DNS server address automatically Use the following DNS server addresses: Preferred DNS server: Alternate DNS server: Network Load Balancing Properties Cluster Parameters Port range80to80 Host Parameters Port Rules ProtocolsTCPUDPBoth Filtering mode Multiple hosts Single host Disabled AffinityNoneSingleClass C Load weight50orEqual Handling priority1 AddModifyRemove StartEndProtocolModePriorityLoadAffinity 8080BothMultipleEqualNone BothMultipleEqualNone

Lab A: Installing and Configuring the Network Load Balancing Driver

Review Pre-Installation Network Load Balancing Driver Installation Configuring the Network Load Balancing Driver Cluster Parameters Port Rules TCP/IP Properties Post-Installation Configuration