Redis Multisite Installation

Hello,
I have a multisite installation. I installed the plugin, added the configurations in wp-config.php, and activated Redis on the server. Everything seems to be working in the network admin panel. But does this also work for subsites? I’m not sure.

I’ve read some sources that a different configuration is required for subsites in a multisite Redis installation. For example, it seems that each subsite needs to have a table prefix defined in the wp-config.php file.

Is it like this?
$host = $_SERVER[‘HTTP_HOST’] ?? ‘cli’;
define(‘WP_CACHE_KEY_SALT’, md5($host) . ‘_’);

Or is it like this?
define( ‘WP_REDIS_PREFIX’, ‘site_’ . $_SERVER[‘HTTP_HOST’] . ‘_’);

These are the only configurations I’ve added for Redis in wp-config.php:

define(‘WP_REDIS_HOST’, ‘127.0.0.1’);

define(‘WP_REDIS_PORT’, 6379);

define(‘WP_REDIS_DATABASE’, 0);

define(‘WP_REDIS_PASSWORD’, ”);