--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+
+ Extensions for PlanetLab Resources
+ Version 1
+
+-->
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" targetNamespace="http://www.planet-lab.org/resources/sfa/ext/plos/1" xmlns:plos="http://www.planet-lab.org/resources/sfa/ext/plos/1">
+ <xs:element name="attribute">
+ <xs:complexType>
+ <xs:attribute name="protocol" use="required"/>
+ <xs:attribute name="port_range" use="required"/>
+ <xs:attribute name="cidr_ip" use="required"/>
+ </xs:complexType>
+ </xs:element>
+</xs:schema>