Azure Application Gateway vs. F5 BIG-IP Local Traffic Manager (LTM)

For building scalable and highly available applications, Azure Application Gateway does most of the job on behalf of you; automatically load-balancing traffic from a number of users to a number of back-end servers. This ensure scalability and availability. The in-built security is great as can be expected from Microsoft, and user has a variety of tools for monitoring the health of the load-balancing function as well as the health of back end servers behind it.

Incentivized

There was a need to have the DR environment to be available actively but not to send the traffic unless the production is down The F5 BIG-IP Local Traffic Manager (LTM) priority feature helped achieving it. It was well suited in handling the HTTP headers using polices and iRules. It was less appropriate from the application security perspective in the current version. But after attending the AppWorld 2024, I see a lot of ways to protect the network and the application with several features.

Incentivized

• Easy integration with Load Balancer and Azure Scale Set to provide a full solution for traffic management.
• With rich routing rule, we could use one Application Gateway as the central point for all internal applications to expose to the external network.

Incentivized

• Does web traffic management very well.
• To allow API's to work with our in house services
• To make intelligent load balancing decisions.

Incentivized

• Live examples in the Azure documentation
• Application Gateway UI Blade in Azure Portal can be streamlined
• Have more advanced feature set as WAF (Web Application Firewall)

Incentivized

• Time investment in creating Virtual Servers across many LTMs
• Ability to change object names after creation
• Support ability to troublshoot iRUles

Incentivized

I don’t like that it's part of the Microsoft brand. In general, I am not a fan of Microsoft products but Azure gets it right.

Incentivized

Other load balancing tools in Azure (Azure LB and Azure Traffic Manager) are limited in their functionality in comparison with the Azure Application Gateway, and also, they don't provide security features. Azure Firewall, although it has security features, is more expensive, and most importantly, it's not a load balancer at all.

Incentivized

As far as I know, F5 BIG-IP Local Traffic Manager (LTM) from F5 is the best and the number of features is unmatched compared to its competitors. The first-time setup is also quick and easy and the product behaves as a full proxy which is rarely seen. The support is good and also the help articles are numerous.

Incentivized

• Positive : Improved performance and scalability
• Positive : Better and enhanced Security
• Positive : Efficiency
• Negative: Cost
• Negative: More resources to manage.

Incentivized

• Negative impact in that it makes it very easy for applications to be spun up but cleanup of old/ unused deployments do not happen causing resources to be consumed unnecessarily
• When used in a multiblade viprion guest, issues with backplane and blade replication causing impact
• Ability to deploy multiple instances helped with network segmentation

Incentivized