# interfaces.rnc
namespace rng = "http://relaxng.org/ns/structure/1.0"
namespace xsd  = "http://www/w3/org/2001/XMLSchema-datatypes"
namespace xml  = "http://www.w3.org/XML/1998/namespace"
namespace sch  = "http://www.ascc.net/xml/schematron"
namespace dc   = "http://purl.org/dc/terms"
namespace dml  = "http://example.org/ns/dml"
namespace compat ="http://relaxng.org/ns/compatibility/annotations/1.0"
namespace int  = "http://example.org/ns/int"
default namespace = "http://example.org/ns/int"

start = element-interfaces

element-interfaces = element interfaces {
  element-interface+ 
  >> dc:title [ "Example Interfaces schema fragment" ]
  >> dml:version ["1.0"]
}

element-interface = element interface {
  element ifIndex { xsd:token },
  element ifType  { xsd:token }
  >> dml:key [ "ifIndex"]
}