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Network Load Balancer (v2)

Layer 4

  • Network load balancers (Layer 4) allow to:

    • Forward TCP & UDP traffic to your instances

    • Handle millions of request per seconds

    • Less latency ~100 ms (vs 400 ms for ALB

  • NLB has one static IP per AZ, and supports assigning Elastic IP (helpful for whitelisting specific IP)

  • NLB has one static IP per AZ, and supports assigning Elastic IP (helpful for whitelisting specific IP)

  • Not included in the AWS free tier

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Target Groups for NLB

  • EC2 instances

  • IP Addresses – must be private IPs

  • Application Load Balancer

  • Health Checks support the TCP, HTTP and HTTPS Protocols

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