Describe and configure Load Balancer and Network Load Balancer

Summary

The general procedure is:

1. Create a VCN with at least two (2) subnets
2. Create at least two (2) instances in the private subnet
3. Create a load balancer in the public subnet
4. Create a backend set that include the instances created above
5. Create a listener for the load balancer

Reference

• Infrastructure Services
• Networking
• Overview of Load Balancer
• Network Load Balancer

Lab

This topic is covered in Lab 5-1: Networking: OCI Load Balancer:

Load Balancer

The OCI Load Balancer provides automated traffic distribution from one entry point to multiple back-end servers in your VCN. It operates at the connection level and balances incoming client connections to healthy back-end servers. The service offers a load balancer with your choice of a regional public or private IP address and provisioned bandwith.

Summary of Components for OCI Load Balancer Used in This Lab

• Listener: A logical entity that checks for incoming traffic on the load balancer's IP address
• Back-end server: An application server responsible for generating content in reply to the incoming traffic
• Back-end set: A load-balancing ploicy tells the load balancer how to distribute incoming traffic to the back-end servers
• Health check: A test to confirm the availability of back-end servers
• Shape: The Bandwidth capacaity of the load balancer