> For the complete documentation index, see [llms.txt](https://karansingh.gitbook.io/aws-saa-c02/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://karansingh.gitbook.io/aws-saa-c02/elb/cross-zone-load-balancing.md).

# Cross Zone Load Balancing

* The **nodes for your load balancer distribute requests from clients to registered targets**.<br>
* **When cross-zone load balancing is enabled, each load balancer node distributes traffic across the registered targets in all enabled Availability Zones**.<br>
* **When cross-zone load balancing is disabled, each load balancer node distributes traffic only across the registered targets in its Availability Zone**.<br>
* **With CLBs and ALBs, cross-zone load balancing is enabled by default** and **for ALBs, it cannot be turned off** and there are **no charges for inter-AZ data transfer**.<br>
* **With NLBs, cross-zone load balancing is disabled by default**. After you create the load balancer, you can enable or disable cross-zone load balancing at any time.