Here is a sample of the code used in the network builder. Notice the double slashes (//)
before the .mtu(), hence no value is being stated so that the default is used.
//Configure initial network builder with empty name field
NetworkBuilder networkBuilder = new NetworkBuilder()
.name(EMPTY_NETWORK_NAME)
//.mtu()
.dataCenter(dataCenter()
.name(dcName))
.usages(netUsageList)
.ip(
ip()
.version(IpVersion.V4)
.netmask(netMask)
.gateway(netGateway))
.dnsResolverConfiguration(
dnsResolverConfiguration()
.nameServers(dnsName));