Network Load Balancing

Transcription

1 Network Load Balancing Step by Step installation of Network Load Balancing in Windows Server 2008 R2. Prerequisite for NLB Cluster 1. Log on to NODE1 Windows Server 2008 R2 system with a domain account that has local administrator rights. 2. Click Start, click All Programs, click Administrative Tools, and select Server Manager. 3. Once Server Manager Open than in the tree pane, selects Features, and in the Actions pane, clicks the Add Features link. 4. On the Add Features page, check the box for Network Load Balancing, and click Next to continue. 5. On the Confirm Installation Selections page, review the list of features that will be added, and click Install to begin the installation. 6. Close the Server Manager console and log off of the server. 7. Repeat the same process on NODE2 from 1 st to 6 th. 8. Pre-configure the account and password credentials to be used on each node in the cluster, select Options -> Credentials and enter an account and password. Note that the account must be a member of the administrators group. If default credentials are configured, the user will be prompted for account and password information each time a connection to a cluster node is established. Note: Network Load Balancing may also be installed from a command prompt. (Right click on the command prompt in the Start menu and select Run as Administrator). C:\Windows\system32>servermanagercmd -install nlb. Start Installation...

2 [Installation] Succeeded: [Network Load Balancing] <100/100> Success: Installation succeeded.. Once the pre-requisite completed follow the below process for NLB configuration. 1. Open the Network Load Balancing Manager from the below mentioned location.

3 2. Right click on the Network Load Balancing Clusters manager window and select the New Cluster menu option. This will display the New Cluster connection dialog. 3. In this dialog, enter either the name or IP address of the first server to be included in the load balanced cluster and press the Connect button to establish a connection to that server as shown below:

4 4. If the connection is successful the first server will be listed as shown below: 5. Add VIP address in IPv4 address and Subnet Mast in Below Screen

5 6. Once VIP successfully configured in the above screen than click on next and below mentioned screen will appear verify the same and click on next. 7. Select Multicast in Cluster operation mode as given in below Screen.

6 8. By default all TCP and UDP traffic on all ports (0 through 65535) is balanced across all nodes in the cluster with single client affinity. To define new or modify existing rules, for example to direct traffic to a particular port to a specific cluster node, use the Add and Edit buttons. Once port rules have been defined, click Finish to complete this phase of the configuration process. 9. Network Load Balancing Manager will now list the new cluster containing the single node. Now Add Host to Cluster to add second node.

7 10. Add the hostname or IP in the Host: field and Click on Next. 11. Verify the Node2 Host IP and Subnet Mask and click on next as shown in the below screen.

8 12. Same as in Point 8 by default all TCP and UDP traffic on all ports (0 through 65535) is balanced across all nodes in the cluster with single client affinity. To define new or modify existing rules, for example to direct traffic to a particular port to a specific cluster node, use the Add and Edit buttons. Once port rules have been defined, click Finish to complete this phase of the configuration process. 13. Now both the Nodes are successfully configured in NLB cluster and you can see the manager screen with a status of Pending, followed by Converging and finally Converged.

9 Note: once cluster configuration completed successfully than add the VIP with MAC address in Switch so that you can access the IIS based application outside the server farm. Command is given below: Arp VIP VIPMACADDRESS