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
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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