While the AWS Cloud provides many additional components and services beyond what is offered by Elastic Load Balancer(ELB), KEMP’s Virtual LoadMaster VLM for AWS has additional and enhanced features and capabilities that provide a rich set of integrated functionality, easily configured and managed via the Web User Interface. The same set of capabilities are available when LoadMaster, as an appliance or virtual machine, is used on premises. Having a common interface across all environments is a big advantage and provides a simpler, consistent management experience when deploying hybrid or heterogeneous cloud environments.
| Features | Elastic Load Balancer (ELB) | Virtual LoadMaster (VLM) |
|---|---|---|
| Layer 4 Load Balancing | ||
| Layer 7 Load Balancing | ||
| Pre-configured application templates | ||
| High Availability | ||
| Clustering | ||
| Scheduling Methods | Round Robin Only | Advanced Scheduling Methods |
| Server Persistence | L4 Only | L4/L7 (Advanced options) |
| SSL Termination/Offload | ||
| Content Caching/Compression | ||
| VM Resource Availability Awareness | ||
| Header Content Switching | ||
| Header Manipulation | ||
| Health Check Aggregation | ||
| TCP multiplexing | ||
| Reverse Proxy | ||
| Advanced Authentication | * | (Advanced Options) |
| Web Application Firewall Protection |
* Supported by other services with AWS