> For the complete documentation index, see [llms.txt](https://docs.greennode.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.greennode.ai/glb.md).
# GLB
Global Load Balancer (GLB) is a network traffic distribution solution designed for multi-region environments. Unlike traditional Load Balancers that operate only within a single region or local network, GLB can distribute traffic across servers located in multiple geographic regions.
### Why Use GLB?
* **Global Reach:** Enables traffic distribution across servers located in different geographic regions.
* **Improved Performance:** Reduces response time by routing user requests to the nearest available server.
* **High Availability:** Minimizes risks and ensures service continuity even if one region experiences failures.
* **Scalability:** Easily add or remove servers from the pool without affecting system operations.
* **Flexibility:** Simplifies the configuration and management of Global Pools, allowing flexible load-balancing adjustments based on demand.
* **Cost Optimization:** Efficiently utilizes server resources by evenly distributing workloads.
### Comparison with Traditional Load Balancer
| Feature | Traditional LB | GLB |
| ------------------ | ---------------------------------- | ---------------------------------------------------------------------- |
| Scope of Operation | Within a single VPC network | Across multiple regions |
| Primary Purpose | Load balancing within a local area | Multi-region load balancing with optimized performance and reliability |
| Scalability | Limited | Flexible and easy to scale |
| Complexity | Low | Higher, but with more advanced features |