DOCSP-33117 Fix Host.getMaxConnsWithVersionDefault for Server version (#5212) (#5226)

Author: kanchana-mongodb

source/reference/alerts.txt

@@ -674,7 +674,20 @@ Connection metrics include:
 
    * - Connections % of configured limit is
      - Percentage of active host connections to the total number of
-       possible connections meets your specified threshold.
+       possible connections meets your specified threshold. The
+       default value for MongoDB versions 2.6.0 and 3.0.0 is ``65536``
+       and the default value for MongoDB versions greater than (``>``)
+       3.0.0,  is ``1000000``. You can override the default value two
+       ways: 
+
+       - Use the :binary:`mongod <bin.mongod>` ``--maxConnns`` to set
+         the maximum number of simultaneous connections for ``mongod``.
+         To learn more, see :manual:`mongod Core Options
+         </reference/program/mongod/#std-option-mongod.--maxConns>`. 
+
+       - Update the ``net.maxIncomingConnections`` field in the
+         MongoDB configuration file. To learn more, see :manual:`net
+         Options </reference/configuration-options/#mongodb-setting-net.maxIncomingConnections>`.
 
 .. include:: /includes/fact-alerts-charting-metrics.rst