public String getNetworkType() {
        return this.networkType;
    }
<p>
The network type of the DB instance.
</p>
<p>
The network type is determined by the <code>DBSubnetGroup</code> specified for the DB instance. A
<code>DBSubnetGroup</code> can support only the IPv4 protocol or the IPv4 and the IPv6 protocols (
<code>DUAL</code>).
</p>
<p>
For more information, see <a
href="https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_VPC.WorkingWithRDSInstanceinaVPC.html"> Working
with a DB instance in a VPC</a> in the <i>Amazon RDS User Guide</i> and <a
href="https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/USER_VPC.WorkingWithRDSInstanceinaVPC.html">
Working with a DB instance in a VPC</a> in the <i>Amazon Aurora User Guide.</i>
</p>
<p>
Valid Values: <code>IPV4 | DUAL</code>
</p>

@return The network type of the DB instance.</p>
        <p>
        The network type is determined by the <code>DBSubnetGroup</code> specified for the DB instance. A
        <code>DBSubnetGroup</code> can support only the IPv4 protocol or the IPv4 and the IPv6 protocols (
        <code>DUAL</code>).
        </p>
        <p>
        For more information, see <a href=
        "https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_VPC.WorkingWithRDSInstanceinaVPC.html">
        Working with a DB instance in a VPC</a> in the <i>Amazon RDS User Guide</i> and <a href=
        "https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/USER_VPC.WorkingWithRDSInstanceinaVPC.html"
        > Working with a DB instance in a VPC</a> in the <i>Amazon Aurora User Guide.</i>
        </p>
        <p>
        Valid Values: <code>IPV4 | DUAL</code>
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/DBInstance.java