| Package | Description | 
|---|---|
| org.apache.hadoop.net | Network-related classes. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | CachedDNSToSwitchMappingA cached implementation of DNSToSwitchMapping that takes an
 raw DNSToSwitchMapping and stores the resolved network location in 
 a cache. | 
| class  | ScriptBasedMappingThis class implements the  DNSToSwitchMappinginterface using a 
 script configured via theCommonConfigurationKeysPublic.NET_TOPOLOGY_SCRIPT_FILE_NAME_KEYoption. | 
| class  | TableMapping
 Simple  DNSToSwitchMappingimplementation that reads a 2 column text
 file. | 
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