Azure Networking
- Roger Cruz
Documentation
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Understand Azure Load Balancing - Read here to determine which Azure load balancer makes sense
Great video on Networking from John Savill: Microsoft Azure Master Class Part 6 - Networking
00:00 Introduction
12:00 VM NICs
23:44 Types of traffic
26:14 IPv6
29:54 External access to resources
38:50 Connecting virtual networks
55:24 Connecting to on-premises
1:09:10 Controlling traffic flows with NSGs
1:20:50 Application Security Groups
1:24:28 Service Endpoints and Service Endpoint Policies
1:32:00 Azure DNS
1:38:50 Azure Private Link
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Load Balancing Differences
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Distributing Network Traffic
This table compares the Azure Load Balancer, Application Gateway, Traffic Manager, and Front Door. These techonologies can be used in isolation or in combination.
Service | Azure Load Balancer | Application Gateway | Traffic Manager | Azure Front Door |
Technology | Transport Layer (level 4) | Transport Layer (level 7) | DNS Resolver | Layer 7 or HTTP/HTTPS |
Protocols | Any TCP or UDP Protocol | HTTP, HTTPS, HTTP/2, & WebSockets | DNS Resolution | Split TCP-based anycast protocol |
Backends and Endpoints | Azure VMs, and Azure VM Scale Sets | Azure VMs, Azure VM Scale Sets, Azure App Services, IP Addresses, and Hostnames | Azure Cloud Services, Azure App Services, Azure App Service Slots, and Public IP Addresses | Internet-facing services hosted inside or outside of Azure |
Network connectivity | External and Internal | External and Internal | External | External and Internal |