Method for transmitting data packets in a data network (DN, DN') comprising a multiplicity of network nodes (A, B,... E), in which: a) for a respective network node (A, B,... E) from at least some of the network nodes of the data network (DN, DN'), a routing topology (RT1, RT2,... RT5) associated with the respective network node (A, B,... E) and having an explicit identification (ID1, ID2,... ID5) is ascertained, wherein the routing topology (RT1, RT2,... RT5) describes paths (P1, P2, P3) for forwarding data packets between the respective network node (A, B,... E) and each other network node (A, B,... E) in the data network (DN, DN') on the basis of links (L1, L2,... L8) between adjacent network nodes (A, B,... E); b) for the routing topologies (RT1, RT2,... RT5) ascertained in step a), in each case for each network node (A, B,... E), a piece of routing information with the identification (ID1, ID2,... ID5) of the respective routing topology (RT1, RT2,... RT5) is produced and is stored in the respective network node (A, B,... E), wherein the routing information (RT1, RT2,... RT5) contains, for each destination network node, which can be specified in a data packet that is to be sent by the respective network node (A, B,... E), a piece of information that indicates the adjacent network node (A, B,... E) to which the data packet to be sent needs to be forwarded in the respective routing topology (RT1, RT2,... RT5); c) a data packet transmitted from a source network node to a destination network node specifies the identification (ID1, ID2,... ID5) of the routing topology (RT1, RT2,... RT5) to be used for the transmission, wherein each network node (A, B,... E) that forwards the data packet uses the routing information stored on it with the identification (ID1, ID2,... ID5) of the routing topology (RT1, RT2,... RT5) for the data packet. a) for a respective network node (A, B,... E) from at least some of the network nodes of the data network (DN, DN'), a routing topology (RT1, RT2,... RT5) associated with the respective network node (A, B,... E) and having an explicit identification (ID1, ID2,... ID5) is ascertained, wherein the routing topology (RT1, RT2,... RT5) describes paths (P1, P2, P3) for forwarding data packets between the respective network node (A, B,... E) and each other network node (A, B,... E) in the data network (DN, DN') on the basis of links (L1, L2,... L8) between adjacent network nodes (A, B,... E); b) for the routing topologies (RT1, RT2,... RT5) ascertained in step a), in each case for each network node (A, B,... E), a piece of routing information with the identification (ID1, ID2,... ID5) of the respective routing topology (RT1, RT2,... RT5) is produced and is stored in the respective network node (A, B,... E), wherein the routing information (RT1, RT2,... RT5) contains, for each destination network node, which can be specified in a data packet that is to be sent by the respective network node (A, B,... E), a piece of information that indicates the adjacent network node (A, B,... E) to which the data packet to be sent needs to be forwarded in the respective routing topology (RT1, RT2,... RT5); c) a data packet transmitted from a source network node to a destination network node specifies the identification (ID1, ID2,... ID5) of the routing topology (RT1, RT2,... RT5) to be used for the transmission, wherein each network node (A, B,... E) that forwards the data packet uses the routing information stored on it with the identification (ID1, ID2,... ID5) of the routing topology (RT1, RT2,... RT5) for the data packet.