Method of transferring data between a sending station in a first network and a receiving station in a second network, and apparatus for controlling the communication between the sending station in the first network and the receiving station in the second network

摘要

The invention relates to the field of network communication in a wide area, where a local network of a first type (20) has a sending station (21) that communicates with a receiving station (31) in a local network of a second type (30). A network of a third type (50) is in between the two networks (20, 30) and provides virtual private networking between the two local networks (20, 30). The network of the first type (20) supports a fine grained QoS, whereas the network of the third type (50) supports a coarser grained QoS. In one example the network of the first type is RSVP capable and the network of the second type is an MPLS network. The invention resides in a component called RSVP-MPLS proxy (100) that maps the RSVP resource advertisements and reservations within an RSVP-aware customer network to an MPLS network, whereby the receiver side doesn't participate in the RSVP communication process.