Examples using netconf

<rpc><edit-config><target><candidate/></target><config>
      <interfaces>
         <interface>
            <name>eth1</name>
            <enabled>true</enabled>
            <ipv4>
               <address>
                  <ip>9.2.3.4</ip>
                  <prefix-length>24</prefix-length>
               </address>
            </ipv4>
         </interface>
      </interfaces>
</config></edit-config></rpc>]]>]]>

 * no filter + no config
     <rpc><get-config><source><candidate/></source></get-config></rpc>]]>]]>
 * filter subnet + no config:
     <rpc><get-config><source><candidate/></source><filter/></get-config></rpc>]]>]]>
 * filter xpath + no select:
     <rpc><get-config><source><candidate/></source><filter type="xpath"/></get-config></rpc>]]>]]>
 * filter subnet + config:
     <rpc><get-config><source><candidate/></source><filter type="subtree"><configuration><interfaces><interface><ipv4/></interface></interfaces></configuration></filter></get-config></rpc>]]>]]>
 * filter xpath + select:
     <rpc><get-config><source><candidate/></source><filter type="xpath" select="/interfaces/interface/ipv4"/></get-config></rpc>]]>]]>