Concluded WG Private Data Network Routing (pdnrout)
Note: The data for concluded WGs is occasionally incorrect.
|Private Data Network Routing
|Routing Area (rtg)
|Dr. Carl-Herbert Rokitansky
Final Charter for Working Group
The DoD INTERNET TCP/IP protocol suite has developed into a de facto
industry standard for heterogenous packet switching computer networks.
In the US, several hundreds of INTERNET networks are connected
together; however the situation is completely different in Europe.
The only network which could be used as a backbone to allow
interoperation between the many local area networks in Europe, now
subscribing to the DoD INTERNET TCP/IP protocol suite, would be the
system of Public Data Networks (PDN). However, so far, no algorithms
have been provided to dynamically route INTERNET datagrams through
X.25 public data networks. Therefore, the goals of the Public Data
Network Routing Working Group are the development, definition and
specification of required routing and gateway algorithms for an
improved routing of INTERNET datagrams through the system of X.25
Public Data Networks (PDN) to allow worldwide interoperation between
TCP/IP networks in various countries. In addition, the application
and/or modification of the developed algorithms to interconnect local
TCP/IP networks via ISDN (Integrated Services Digital Network) will be
|Development of Internetwork Management Protocols for worldwide cooperation and coordination of network control and network information centers.
|Consideration of INTERNET Route Servers.
|Interoperability between ISO/OSI hosts on TCP/IP networks through PDN.
|Delayed TCP/IP header compression by VAN-gateways and PDN-hosts.
|Definition of the PDN-cluster addressing scheme as an Internet standard.
|Interoperability between local TCP/IP networks via ISDN.
|Application of the INTERNET Cluster Addressing Scheme to Public Data Networks.
|Implementation of the required algorithms and protocols in a VAN-Box.
|Development of hierarchical VAN-gateway algorithms for worldwide INTERNET network reachability information exchange between VAN-gateways.
|Provide a testbed for worldwide interoperability between local TCP/IP networks via the system of X.25 public data networks (PDN).
|Assignment of INTERNET/PDN-cluster addresses to PDN-hosts and VAN-gateways according to the developed hierarchical VAN-gateway algorithms.
|Assignment of INTERNET/PDN-cluster network numbers to national public data networks. (Mapping between INTERNET network numbers and X.121 Data Network Identification Codes (DNICs)).
|Specification of routing metrics taking X.25 charges into account.
|Specification of an X.25 Access and Forwarding Control Scheme.
|Specification of an X.121 Address resolution protocol.
|Specification of an X.25 Call Setup and Charging Determination Protocol.