fix(lb): finish migration doc

Author: RoRoJ

menu/navigation.json

@@ -4190,6 +4190,10 @@
                     "label": "Public vs private Load Balancers",
                     "slug": "public-private-accessibility"
                   },
+                  {
+                    "label": "Migrating from AWS ELB",
+                    "slug": "migrating-aws"
+                  },
                   {
                     "label": "Deprecation of SNI routes with HTTP backends",
                     "slug": "sni-route-deprecation"

pages/load-balancer/reference-content/assets/scaleway-lb-diag-complex.webp

@@ -1,25 +1,27 @@
 ---
 title: Migrating from AWS to Scaleway for your load balancer needs
-description: TODO
-tags: load-balancer TODO
+description: Migrate from AWS to Scaleway for load balancing with this guide. Learn about the differences and equivalences between AWS Elastic Load Balancers and Scaleway Load Balancers, including types, concepts, setup, and pricing
+tags: load-balancer ELB application network listener target-group Scaleway AWS elastic-load-balancer
 dates:
   validation: 2025-07-28
   posted: 2025-07-28
 ---
 
+import lbDiagSimple from './assets/scaleway-lb-diag-simple.webp'
+import lbDiagComplex from './assets/scaleway-lb-diag-complex.webp'
+
 You may be used to creating and managing your cloud load balancers with AWS. This document is intended to help and guide users considering migrating from AWS to Scaleway for their load balancing needs. It aims to help you understand the differences and equivalences between load balancer concepts and resource creation with AWS versus Scaleway.
 
 ## Load Balancer products and types
 
-AWS offers several different "Elastic" Load Balancer products. Scaleway offers a single **Load Balancer** product, which can be configured in different ways to provide equivalences to the various types of AWS Elastic Load Balancer: <br/><br/>
+AWS offers several different "Elastic" Load Balancer products. Scaleway offers a single **Load Balancer** product, which can be [configured in different ways](##application-vs-network-with-scaleway) to provide equivalences to the various types of AWS Elastic Load Balancer: <br/><br/>
 
 
 |              | AWS Classic LB         | AWS Application LB | AWS Network LB | AWS Gateway LB | SCW LB                |
 |--------------|------------------------|--------------------|----------------|----------------|-----------------------|
 | OSI Layer    | L4 & L7                | L7                 | L4             | L3 & L4        | L4 & L7               |
 | Protocols    | HTTP, HTTPS, TCP       | HTTP, HTTPS        | TCP, TLS, UDP  | All IP traffic | HTTP, HTTPS, TCP, TLS |
 
-
 ## Key concepts and naming differences
 
 AWS and Scaleway do not always use the same wording to describe similar Load Balancer features. The table below is designed to help you translate feature and concept naming from one cloud provider's load balancer product to another:
@@ -29,11 +31,16 @@ AWS and Scaleway do not always use the same wording to describe similar Load Bal
 | Target group                   | Backend                                       |
 | Target                         | Backend server                                |
 | Listener                       | Frontend                                      |
-| Listener rules                 | Route rules                                   |
+| Listener rules                 | Routes                                        |
+| Listener rules                 | Routes                                        |
 | Internal Load Balancer         | Private Load Balancer                         |
 | Security group                 | ACL                                           |
 | Metrics with Amazon CloudWatch | Metrics with Scaleway Cockpit                 |
 
+The diagram below shows the simplest form of Scaleway Load Balancer:
+
+<Lightbox image={lbDiagSimple} alt="A diagram shows how user requests or connections flow through a Load Balancer's public IP, to a frontend, to a backend, to backend servers" />
+
 ## Scaleway Load Balancer features
 
 Scaleway Load Balancer offers the following features:
@@ -60,7 +67,9 @@ Scaleway Load Balancer offers the following features:
 - Compatibility with Scaleway Kubernetes Kapsule and Scaleway CCM
 - Caching and WAF via Edge Services
 
-## Creating an AWS Load Balancer vs a Scaleway Load Balancer
+## Load Balancer creation
+
+### AWS flow vs Scaleway flow
 
 The process for creating a Scaleway Load Balancer is different to that of AWS. Whereas for AWS, you must first define the target group that the load balancer will forward traffic to, with Scaleway you begin by creating the Load Balancer itself and then define the target group (server IPs) during creation of the Load Balancer's backend.
 
@@ -73,6 +82,24 @@ The process for creating a Scaleway Load Balancer is different to that of AWS. W
 
 The full process of creating a Load Balancer with Scaleway is detailed in the [Load Balancer Quickstart](/load-balancer/quickstart/).
 
+The diagram below shows a Scaleway Load Balancer with multiple frontends and backends. In this case, the frontends listen on different ports, and use routes to determine which of their attached backends to forward traffic to.
+
+<Lightbox image={lbDiagComplex} alt="A diagram shows how user requests or connections flow through a Load Balancer's public IP, to one of multiple frontends, to one of multiple backends, to backend servers" />
+
+### Application vs Network with Scaleway
+
+To create the equivalent of an AWS **Application Load Balancer**, with Scaleway you will typically create a Load Balancer with:
+
+- One or more frontends listening on port 80 or 443
+- One or more backends configured for HTTP or HTTPS protocol
+- (Optional): Routes from frontends to backends based on HTTP Host headers
+
+To create the equivalent of an AWS **Network Load Balancer**, with Scaleway you will typically create a Load Balancer with:
+
+- One or more frontends listening on a port matching your application
+- One or more backends configured for TCP protocol
+- (Optional): Routes from frontends to backends based on SNI
+
 ## Plans and pricing
 
 Like AWS, the pricing model for Scaleway Load Balancers is based on an hourly rate. Different commercial types of Load Balancer have a different hourly rate, based on: