Network Services
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Network Services
Public cloud environments have numerous built-in network services, from network load balancers to application load balancers, web proxies, application firewalls, and content delivery network (CDN).
This module starts with the load balancing basics and describes network services available in AWS and Azure environments.
2:06:12 Load Balancing and Scale-Out Architectures |
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Load balancing is the foundational technology of any scale-out application architecture. This section describes a wide variety of load balancing approaches, from server-based technologies to dedicated load balancing appliances. |
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| Load Balancing and Scale-Out Application Architectures | 3.9M | 2013-04-19 |
| Introduction to Scalability and Load Balancing | 9:28 | 2014-05-17 |
| Single Server Solutions | 12:30 | 2014-05-17 |
| Scale-Out Application Architectures | 21:07 | 2014-05-17 |
| Scaling Database Servers | 11:16 | 2014-05-17 |
| DNS and Anycast Load Balancing | 7:53 | 2014-05-17 |
| Load Balancers 101 | 9:50 | 2014-05-17 |
| Common Load Balancer Features | 13:57 | 2014-05-17 |
| Advanced Load Balancer Features | 11:24 | 2014-05-17 |
| Server-Based Load Balancing | 11:19 | 2014-05-17 |
| Global Load Balancing | 12:35 | 2014-05-17 |
| Scalability and Load Balancing - Conclusions | 4:53 | 2014-05-17 |
More Information |
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| Introduction to modern network load balancing and proxying | ||
Deploying Load Balancing Services |
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You will probably want to focus your work on either AWS or Azure. Please watch the materials describing the public cloud provider you want to use during the course. |
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1:49:23 AWS Load Balancing Mechanisms |
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AWS provides a variety of load balancing mechanisms, from local L4 load balancing (Network Load Balancing) and HTTP (Application) load balancing to service insertion with Gateway Load Balancer, global load balancing with DNS, and anycast IP addresses. |
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| Elastic Load Balancing | 14:29 | 2022-12-21 |
| Network Load Balancer | 10:15 | 2022-12-21 |
| Application Load Balancer | 9:13 | 2022-12-21 |
| Route 53 and CloudFront | 15:47 | 2022-12-21 |
| Route 53 ARC Zonal Shift | 10:36 | 2023-11-27 |
| Global Accelerator | 17:40 | 2022-12-21 |
| Gateway Load Balancer | 27:21 | 2021-04-27 |
Automation Examples |
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| Network Load Balancer Example | ||
4:02 From the ipSpace.net Design Clinic |
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| Scale-Out Cloud DMZ | 4:02 | 2022-05-30 |
Related AWS Documentation |
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| Create an Application Load Balancer | ||
| Create a Network Load Balancer | ||
| Getting Started with Global Accelerator | ||
| What is a Gateway Load Balancer? | ||
Gateway Load Balancer Blog Posts |
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| Introducing AWS Gateway Load Balancer | ||
| AWS Gateway Load Balancer: Supported architecture patterns | ||
| Integrate your custom logic or appliance with AWS Gateway Load Balancer | ||
| Scaling network traffic inspection using AWS Gateway Load Balancer | ||
| Centralized inspection architecture with AWS Gateway Load Balancer and AWS Transit Gateway | ||
| GWLB Deployment Patterns | ||
New AWS Features |
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| Application Load Balancer supports TLS 1.3 | ||
| AWS Gateway Load Balancer supports IPv6 traffic | ||
| Network Load Balancer Supports UDP | ||
| Application Load Balancer supports advanced request routing | ||
| CloudFront supports origin failover | ||
| Application Load Balancer as a target for Network Load Balancer | ||
| Application Load Balancers now support turning off cross zone load balancing per target group | ||
| AWS Gateway Load Balancer launches new option to rebalance flows when target fails or deregisters | ||
| Amazon Route 53 launches Geolocation and Latency-Based Routing for Private DNS | ||
Sample Solutions |
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| Building a high available Anycast service using AWS Global Accelerator | ||
2:52:47 Azure Load Balancing Mechanisms |
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Azure provides numerous TCP/UDP and HTTP load balancing services, including Azure Load Balancer, Azure Application Gateway, and Azure Front Door. You can also use DNS-based load balancing with Azure Traffic Manager, or HTTP caching with Azure CDN. All these services are described in this section. |
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| Introduction to Load Balacing and Scale-Out Architectures | ||
If you're not familiar with load balancinc concepts, you might want to watch this part of Data Center Infrastructure for Networking Engineers before proceeding into the details of Azure services. |
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| Azure Load Balancing Functionality | 24:39 | 2022-11-28 |
| Zone Awareness in Azure Load Balancing | 5:44 | 2021-03-24 |
59:37 Azure Load Balancer |
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Azure Load Balancer is an intra-region transparent TCP/UDP load balancer. |
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| Azure Load Balancer Overview | 17:14 | 2021-03-24 |
| Azure Load Balancer Details | 13:55 | 2021-03-24 |
| NAT Rules | 9:39 | 2021-03-24 |
| Floating IP Addresses | 5:17 | 2021-03-24 |
This is one of those features that should never be used... but if you have to deal with it, you might find this short video useful. |
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| High-Availability Ports | 9:27 | 2021-03-24 |
The only sensible use case for high-availability ports is a networking virtual appliance (example: firewall) with numerous TCP/UDP ports. In all other scenarios, please try to find a less complex solution. |
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| Cross-Region Load Balancing | 4:05 | 2021-03-24 |
35:25 Azure Application Gateway |
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Azure Application Gateway is an intra-region HTTP(S) reverse proxy (load balancer) |
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| Azure Application Gateway Overview | 11:26 | 2021-03-24 |
| Deploying and Configuring Azure Application Gateway | 15:05 | 2021-03-24 |
| Azure Application Gateway Load Balancing Details | 8:54 | 2021-03-24 |
27:33 Azure Front Door and CDN |
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Azure Front Door and Azure CDN are global caching HTTP proxies/load balancers |
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| Azure Front Door | 13:28 | 2021-03-24 |
| Azure Front Door Request Routing | 9:47 | 2021-03-24 |
| Azure CDN | 4:18 | 2021-03-24 |
19:49 Azure Traffic Manager |
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Azure Traffic Manager is a global DNS-based load balancer |
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| Azure Traffic Manager Overview | 6:38 | 2021-03-24 |
| Traffic Manager Request Routing | 13:11 | 2021-03-24 |
New Azure Features |
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| Enhancements to Azure Web Application Firewall | ||
Advanced Network Services Topics |
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29:15 Deploying Network Virtual Appliances |
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Deploying redundant network virtual appliances in a public cloud virtual network is one of the hardest challenges you'll have to tackle in your public cloud networking journey. Most network services appliances rely on tricks like layer-2 forwarding, IP address sharing, or static routing toward floating next-hop address to implement seamless failover. None of those tricks work in a typical public cloud environment... but don't despair; this section will outline most of the challenges you'll be facing, and give you a few design alternatives. |
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| Network Virtual Appliance Challenges | 16:04 | 2020-03-18 |
| Sample High-Availability Designs | 13:11 | 2020-03-18 |
| Slide Deck | 7.4M | 2020-03-16 |