# ##############################################################
# 
# File:      nmtopo.rnc - Schema to describe topological
#                            elements.
# Version:   $Id$
#                         
# ##############################################################


# ##############################################################
# Namespace definitions
# ##############################################################
namespace nmwgtopo = "http://ggf.org/ns/nmwg/topology/2.0/"


# ##############################################################
# Covers the basic point to point measurement situation.  The two 
# points are a source and destination; may contain information 
# such as hostname or ip address, and port number when applicable.
# 
# Example:
# 
# <nmwgtopo:endPointPair 
#  xmlns:nmwgtopo="http://ggf.org/ns/nmwg/topology/2.0/">
# 
#   <nmwgtopo:src type="REQUIRED_TYPE" value="REQUIRED_VALUE" 
#                 port="OPTIONAL_PORT"/>
# 
#   <nmwgtopo:dst type="REQUIRED_TYPE" value="REQUIRED_VALUE" 
#                 port="OPTIONAL_PORT"/>
#  
# </nmwgtopo:endPointPair>
# 
# ##############################################################

EndpointPair = 
        element nmwgtopo:endPointPair {
                EndpointPairContent
        }

EndpointPairContent =
        element nmwgtopo:src {
                EndpointContent
        } &
        element nmwgtopo:dst {
                EndpointContent
        }  


# ##############################################################
# Similar to above, from one point only.
# 
# Example:
# 
# <nmwgtopo:endPoint type="REQUIRED_TYPE" value="REQUIRED_VALUE" 
#               port="OPTIONAL_PORT"/>
# 
# ##############################################################

Endpoint = 
        element nmwgtopo:endPoint {
                EndpointContent
        }

EndpointContent = 
        (
                attribute value { xsd:string } |
                text
        ) &
        attribute type { xsd:string } &
        attribute port { xsd:string }?


# ##############################################################
# When looking at network utilization numbers (from a router or 
# related software) there is a different set of applicable 
# information
# 
# Example:
# 
# <nmwgtopo:interface xmlns:nmwgtopo="http://ggf.org/ns/nmwg/topology/2.0/">
# 
#   <nmwgtopo:ipAddress type='REQUIRED_TYPE'> TEXT </nmwgtopo:ipAddress>
# 
#   <nmwgtopo:hostName> TEXT </nmwgtopo:hostName>
# 
#   <nmwgtopo:ifName> TEXT </nmwgtopo:ifName>
# 
#   <nmwgtopo:ifDescription> TEXT </nmwgtopo:ifDescription>
# 
#   <nmwgtopo:ifAddress type='REQUIRED_TYPE'> TEXT </nmwgtopo:ifAddress>
# 
#   <nmwgtopo:ifHostName> TEXT </nmwgtopo:ifHostName>
# 
#   <nmwgtopo:ifIndex> TEXT </nmwgtopo:ifIndex>
# 
#   <nmwgtopo:type> TEXT </nmwgtopo:type>
# 
#   <nmwgtopo:direction> TEXT </nmwgtopo:direction>
# 
#   <nmwgtopo:authRealm> TEXT </nmwgtopo:authRealm>
# 
#   <nmwgtopo:classOfService> TEXT </nmwgtopo:classOfService>
# 
#   <nmwgtopo:capacity> TEXT </nmwgtopo:capacity>
#  
# </nmwgtopo:interface>
# 
# ##############################################################

Interface = 
        element nmwgtopo:interface {
                InterfaceContent
        }

InterfaceContent = 
        element nmwgtopo:ipAddress {
                Address
        }? &
        element nmwgtopo:hostName { xsd:string }? &  
        element nmwgtopo:ifName { xsd:string }? &
        element nmwgtopo:ifDescription { xsd:string }? &
        element nmwgtopo:ifAddress {
                Address
        }? &
        element nmwgtopo:ifHostName { xsd:string }? &
        element nmwgtopo:ifIndex { xsd:string }? &
        element nmwgtopo:type { xsd:string }? &
        element nmwgtopo:direction { xsd:string }? &
        element nmwgtopo:authRealm { xsd:string }? &
        element nmwgtopo:classOfService { xsd:string }? &
        element nmwgtopo:capacity { xsd:string }?

Address = 
        (
                attribute value { xsd:string } |
                text
        ) &
        attribute type { xsd:string }