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Physical Path Control in Hierarchical Networks

A network controller and controller technology, applied in wavelength division multiplexing systems, multiplexing communication, optical multiplexing systems, etc., can solve problems such as expensive regeneration

Active Publication Date: 2022-02-25
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, expensive regeneration may be required

Method used

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Examples

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Embodiment Construction

[0068] The following disclosure is based on the ACTN framework (eg, as described above), but those skilled in the art will appreciate that the disclosed aspects are not limited to such architectures or systems.

[0069] In recent years, Elastic Optical Networking (EON) has emerged as a promising solution for implementing flexible bandwidth channels that advantageously combine allocated bandwidth with Business needs match. In some aspects, the term "elastic" refers to a spectrum that is flexibly divided and / or a transceiver that can generate elastic optical paths (eg, paths with variable bit rates).

[0070] Rate-tunable optical interfaces also propose protection methods, where the working and protection paths have different optical line rates, since best-effort data traffic has been dropped in case of failure. Other advantages of elastic optical networking are related to power savings and reduction of inventory, ie "one size fits all" for easier management of spare parts.

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Abstract

A method in a physical network controller (130) for configuring physical resources to provide physical layer connectivity in a communication network (100). The physical layer connections provide physical connectivity for higher layer network connections controlled by a higher layer network controller (120) in a hierarchical arrangement with physical network controllers (130). The method includes the physical network controller (130) receiving (210) an indication of a minimum traffic capacity for a physical layer connection. The physical network controller configures (220) physical resources according to the received indications.

Description

technical field [0001] The present disclosure relates to a method of controlling physical paths in a layered network, and a network control entity configured to control physical paths in a layered network. Background technique [0002] Future mobile networks will need to meet a wide range of challenging requirements, such as very high bandwidth, cheap and wide coverage, low latency, etc. A homogeneous network will not be able to meet these requirements. [0003] Software-Defined Networking (SDN) is a networking paradigm that integrates control Software is decoupled from specialized forwarding hardware, allowing increased service deployment flexibility. [0004] The IETF defines a framework for standardizing the interface between SDN controllers and physical communication network entities; this is called the Abstraction and Control (ACTN) framework for service engineering networks, for example as in the IETF Internet Draft "Framework for Abstraction and Control of Traffic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L41/0896H04J14/02H04L41/044H04L41/0806H04Q11/00H04L41/5003H04L45/125H04L45/247H04L45/42
CPCH04L41/044H04L41/0806H04L41/5003H04L41/0896H04L41/0895H04L41/40H04J14/0227H04J14/0289H04Q11/0066H04Q2011/0081H04Q2011/0086
Inventor G.布鲁诺D.策卡雷利F.丰代利
Owner TELEFON AB LM ERICSSON (PUBL)