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@@ -1007,6 +1007,12 @@ Set the encoding for the socket as a [Readable Stream][]. See
 ### `socket.setKeepAlive([enable][, initialDelay])`
 <!-- YAML
 added: v0.1.92
+changes:
+  - version:
+    - v13.12.0
+    - v12.17.0
+    pr-url: https://github.com/nodejs/node/pull/32204
+    description: New defaults for `TCP_KEEPCNT` and `TCP_KEEPINTVL` socket options were added.
 -->
 
 * `enable` {boolean} **Default:** `false`
@@ -1021,6 +1027,12 @@ data packet received and the first keepalive probe. Setting `0` for
 `initialDelay` will leave the value unchanged from the default
 (or previous) setting.
 
+Enabling the keep-alive functionality will set the following socket options:
+* `SO_KEEPALIVE=1`
+* `TCP_KEEPIDLE=initialDelay`
+* `TCP_KEEPCNT=10`
+* `TCP_KEEPINTVL=1`
+
 ### `socket.setNoDelay([noDelay])`
 <!-- YAML
 added: v0.1.90