> For the complete documentation index, see [llms.txt](https://clients.medianova.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://clients.medianova.com/products/security/network-rate-limit.md).
# Network Rate Limit
Configure Network Rate Limit to control CDN content delivery speed after a defined transfer threshold.
Control content delivery speed by applying a transfer rate limit after a configurable amount of data has been transferred.
**Network Rate Limit** applies a transfer speed cap to responses delivered to clients. Content is delivered at full speed until the configured threshold is reached. After the threshold is reached, the configured rate limit is applied.
Network Rate Limit is configured per CDN Resource under **Security → Rate limiting** in the [Medianova Control Panel](https://cloud.medianova.com).
{% hint style="info" %}
Network Rate Limit controls transfer speed. To control the number of requests that clients can send, use [Rate Limiting](/products/security/rate-limiting.md).
{% endhint %}
### How Network Rate Limit Works
Network Rate Limit uses two parameters:
Parameter
Description
Rate limit
Maximum transfer speed per second after the threshold is reached.
Threshold
Amount of data transferred before the rate limit is applied.
Content is delivered at full speed until the configured threshold is reached. The CDN then limits the transfer speed according to the configured **Rate limit**.
Using a threshold allows initial content delivery to continue at full speed before throttling begins. This can help reduce startup delays for video or large file downloads.
## Configure Network Rate Limit
{% stepper %}
{% step %}
### Open Rate Limiting
Open the CDN Resource that you want to configure, select **Security**, and then select **Rate limiting**.
{% endstep %}
{% step %}
### Enable Network Rate Limit
Turn on **Network Rate Limit**.
{% endstep %}
{% step %}
### Configure the Rate Limit
Under **Rate limit**, enter the maximum transfer speed and select the required unit:
* **KB/s**
* **MB/s**
The configured value determines the maximum transfer speed after the threshold is reached.
{% endstep %}
{% step %}
### Configure the Threshold
Under **Threshold**, enter the amount of data that can be transferred before the rate limit is applied and select the required unit:
* **KB**
* **MB**
Content is delivered at full speed until this threshold is reached.
{% endstep %}
{% step %}
### Save the Configuration
Select **Save** in the pending changes bar.
Review the pending changes and confirm the configuration.
{% endstep %}
{% endstepper %}
## Example
Consider the following configuration:
* **Rate limit:** `1 MB/s`
* **Threshold:** `512 MB`
The CDN delivers the first 512 MB at full speed. After 512 MB has been transferred, the transfer speed is limited to 1 MB/s.
## Common Use Cases
### Large File Delivery
Apply a sustained transfer speed limit when delivering large downloadable files.
### Media Delivery
Allow initial content delivery at full speed before applying a transfer speed limit to longer-running transfers.
### Bandwidth Management
Control sustained transfer speeds for CDN-delivered content.
## Important Notes
* Network Rate Limit controls transfer speed rather than request volume.
* Content is delivered at full speed until the configured threshold is reached.
* Lower rate limits can increase the time required to complete a transfer.
* Configure the threshold and rate limit according to the delivery requirements of your content.
## Related Concepts
* [Rate Limiting](/products/security/rate-limiting.md)
* [Security](/products/security.md)
---
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