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Windows Network Load Balancing (NLB) allows multiple Windows Servers to operate as a single virtual cluster, distributing incoming TCP/IP traffic evenly across hosts. This improves availability, scalability, and redundancy for critical services like IIS web servers, VPN gateways, and SQL reporting servers.
Key Benefits include:
High availability: Automatic detection of failed hosts and redistribution of load within ~10 seconds.
Scalability: Add up to 32 hosts dynamically without downtime.
Manageability: Centralized control via NLB Manager or PowerShell cmdlets.
Installing NLB via PowerShell Run this on each server that will join the cluster:
Install-WindowsFeature NLB -IncludeManagementToolsCopied!✕CopyNo reboot is required.
Creating an NLB Cluster
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