Telefonaktiebolaget Lm Ericsson (publ)

Zoltán Lajos Kis

Gergely Pongrácz

Gabor Sandor Enyedi

László Molnár

Andràs Csàszàr

A technique for configuring a Software-Defined Network (SDN) is provided. A first control message is issued by a Software-Defined Network controller. The first control message is received at a first network device of the SDN. The first control message includes a SDN configuration command. Two or more second network devices of the SDN are determined as recipients of the SDN configuration command or as intermediate nodes towards recipients of the SDN configuration command. The first network device sends second control messages to the determined two or more second network devices.

Technique for configuring a software-defined network

A packet switching device can process packets by linking pre-compiled code fragments corresponding to actions to be performed for a packet flow, in order to generate a flow function. Once generated, the packet switching device can invoke this flow function for one or more packets in the packet flow. For example, a linker could use a flow table to determine the actions to be performed for a packet flow. Those actions may correspond to code fragments which have already been compiled and make use of symbols as placeholders for parameters yet to be defined. To generate a flow function, the pre-compiled code fragments corresponding to the actions of a flow can be sequenced and linked together. The parameter values of the actions can then replace the placeholder symbols. Once fully assembled, the flow function can be written to memory and executed any time a packet for the corresponding flow needs to be routed.

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Budapest, Hungary

Zoltán Lajos Kis