<http://openconfig.net/yang/bgp#optional>	<http://www.w3.org/2000/01/rdf-schema#domain>	<http://openconfig.net/yang/bgp#state> .
<http://openconfig.net/yang/bgp#optional>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#FunctionalProperty> .
<http://openconfig.net/yang/bgp#optional>	<http://www.w3.org/2000/01/rdf-schema#comment>	"Defines whether the attribute is optional (if\nset to true) or well-known (if set to false).\nSet in the high-order bit of the BGP attribute\nflags octet." .
<http://openconfig.net/yang/bgp#optional>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#DatatypeProperty> .
<http://openconfig.net/yang/bgp#optional>	<http://www.w3.org/2000/01/rdf-schema#range>	<http://www.w3.org/2001/XMLSchema#boolean> .
<http://openconfig.net/yang/bgp#optional>	<http://www.w3.org/2000/01/rdf-schema#comment>	"Reference : RFC 4271 - A Border Gateway Protocol 4 (BGP-4)" .