# Jupyter Enterprise Gateway (JEG) configuration options
<a name="jeg-config-options"></a>

Amazon EMR on EKS uses Jupyter Enterprise Gateway (JEG) to turn on interactive endpoints. You can set the following values for the allow-listed JEG configurations when you create the endpoint.
+ **`RemoteMappingKernelManager.cull_idle_timeout`** – Timeout in seconds (integer), after which a kernel is considered idle and ready to be culled. Values of `0` or lower deactivate culling. Short timeouts might result in kernels being culled for users with poor network connections.
+ **`RemoteMappingKernelManager.cull_interval`** – The interval in seconds (integer) on which to check for idle kernels that exceed the cull timeout value.