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make NLBS NLBs

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Dan O'Brien 2017-10-08 09:03:56 -04:00 • committed by GitHub
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@ -1028,7 +1028,7 @@ Load Balancers
- CLBs and ALBs can optionally handle termination for a single SSL certificate.
- All can optionally perform active health checks of instances and remove them from the destination pool if they become unhealthy.
- CLBs don't support complex / rule-based routing. ALBs support a (currently small) set of rule-based routing features. NLBs have most extensive routing options.
- CLBs can only forward traffic to a single globally configured port on destination instances, while ALBs can forward to ports that are configured on a per-instance basis, better supporting routing to services on shared clusters with dynamic port assignment (like ECS or Mesos). NLBS support multiple ports on same IP; registering targets by IP address, including targets outside the VPC for the load balancer; ECS can select unused port for scheduling a task then register a target group using this port.
- CLBs can only forward traffic to a single globally configured port on destination instances, while ALBs can forward to ports that are configured on a per-instance basis, better supporting routing to services on shared clusters with dynamic port assignment (like ECS or Mesos). NLBs support multiple ports on same IP; registering targets by IP address, including targets outside the VPC for the load balancer; ECS can select unused port for scheduling a task then register a target group using this port.
- CLBs are supported in EC2 Classic as well as in VPCs while ALBs are supported in VPCs only.
- ALBs can target groups of instances and IP based targets in the RFC1918 ranges allowing you to use on premise destinations via VPN or Direct Connect.