METHOD FOR TRANSMITTING AND/OR RECEIVING NETWORK LAYER REACHABILITY INFORMATION BY A NETWORK NODE OF A TELECOMMUNICATIONS NETWORK, TELECOMMUNICATIONS NETWORK, NETWORK NODE, PROGRAM AND COMPUTER PROGRAM PRODUCT

摘要

The invention relates to a method for transmitting and/or receiving network layer reachability information by a network node of a telecommunications network, wherein the telecommunications network comprises a plurality of network nodes, wherein the telecommunications network is an IP (Internet Protocol) packet data network, wherein the network node provides a routing and/or forwarding operation of IPv6 data packets on the network layer (layer 3) according to the OSI model (Open Systems Interconnection model),wherein the network node transmits network layer reachability information to a further network node of the plurality of network nodes and/or receives network layer reachability information from a third network node of the plurality of network nodes,wherein the method comprises at least the step of:transmitting network layer reachability information to the further network node and/orreceiving network layer reachability information from the third network node, wherein the network layer reachability information is, at least partly, defined based on an address information and a bit mask, the bit mask defining at least a first relevant binary digit of the network layer reachability information and/or the address information, and a second relevant binary digit of the network layer reachability information and/or the address information such that the first and second relevant binary digits of the bit mask are separated - within the bit mask - by at least one non-relevant binary digit of the bit mask.