Dynamic construction of virtual dedicated network slice based on software-defined network
AssigneesKorea Institute of Science & Technology Information, Trento Systems.Inc.
InventorsYoung Jae KIM, Dong Kyun KIM
Life of this patent
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Abstract
Disclosed are a network control device and an operation method of the network control device for dynamically constructing an end-to-end virtual dedicated network slice based on a software-defined network (SDN) over the entire wired and wireless network section of a private network and a public network.
Claims10
A network control device comprising:
- a processor;
- and
- memory storing instructions thereon, the instructions when executed by the processor cause the processor to:
- generate a dedicated network tree, the dedicated network tree being a physical path through which a packet is allowed to be transmitted in a software-defined network (SDN)-based virtual dedicated network slice relative to a host belonging to the virtual dedicated network slice when generation of the virtual dedicated network slice is required, the dedicated network tree includes a wired subnetwork generated for a core network section of the virtual dedicated network slice and a radio subnetwork generated for a radio access network section of the virtual dedicated network slice;
- and
- determine an OpenFlow rule indicating a packet transmission path based on the dedicated network tree when a packet is generated between hosts belonging to the virtual dedicated network slice, and allow a packet to be transmitted according to the OpenFlow rule,
- wherein when an effective node having an available link is among nodes to which packets are transmitted in the core network section, the wired subnetwork is generated based on the effective node and the available link of the effective node, and
- wherein the available link is a wired link not occupied by another virtual dedicated network slice, having a bandwidth equal to or greater than a reference bandwidth required by the virtual dedicated network slice.
-3. (canceled)
The network control device of claim 2, wherein, the instructions further cause the processor to, when an effective radio access device having an available channel is among radio access points in the radio access network section, generate the radio service network based on the effective radio access point and the available channel of the effective radio access point,
- wherein the available channel is a radio channel not occupied by another virtual dedicated network slice, having a bandwidth greater than or equal to a reference bandwidth required by the virtual dedicated network slice.
An operation method of a network control device, the operation method comprising:
- generating a dedicated network tree, the dedicated network tree being a physical path through which a packet is allowed to be transmitted in an SDN-based virtual dedicated network slice relative to a host belonging to the virtual dedicated network slice when construction of the virtual dedicated network slice is required, the dedicated network tree including a wired subnetwork generated for a core network section of the virtual dedicated network slice and a radio subnetwork generated for a radio access network section of the virtual dedicated network slice;
- and
- determining an OpenFlow rule indicating a packet transmission path based on the dedicated network tree when a packet is generated between hosts belonging to the virtual dedicated network slice, and allowing a packet to be transmitted according to the OpenFlow rule,
- wherein when an effective node having an available link is among nodes to which packets are transmitted in the core network section, the wired subnetwork is generated based on the effective node and the available link of the effective node, and
- wherein the available link is a wired link not occupied by another virtual dedicated network slice, having a bandwidth equal to or greater than a reference bandwidth required by the virtual dedicated network slice.
-11. (canceled)
Dependencies are inferred from the claim text.