公开(公告)号：US11909668B2

公开(公告)日：2024-02-20

申请号：US17683675

申请日：2022-03-01

Applicant: METASWITCH NETWORKS LTD.

Inventor： Michael Jeffrey Evans ,  Christian Dominic Lund

IPC: G06F9/44 ,  G06N5/02 ,  H04L12/741 ,  H04L49/253 ,  H04L45/60 ,  H04L47/2441 ,  H04L69/22

CPC classification number: H04L49/254 ,  H04L45/60 ,  H04L47/2441 ,  H04L69/22

Abstract: Embodiments of the present disclosure relate to software-defined networks, and particularly, but not exclusively to programmable packet data processing systems, methods and computer readable products for use therein.

公开(公告)号：US11323378B2

公开(公告)日：2022-05-03

申请号：US16539089

申请日：2019-08-13

Applicant: Metaswitch Networks Ltd.

Inventor： Michael Jeffrey Evans ,  Christian Dominic Lund

IPC: H04L12/851 ,  H04L12/741 ,  H04L47/2441 ,  H04L45/48 ,  H04L45/74 ,  H04L47/2483 ,  H04L69/22

Abstract: A packet processing system comprises a packet processing graph comprising classifier nodes including a root classifier node and leaf classifier nodes. The root classifier node is connected to each of the classifier nodes through a respective packet processing path in the graph. Each classifier node stores node match data indicative of at least one match to be applied by the respective classifier node. The classifier nodes comprise first and second classifier nodes arranged in a first packet processing path of said plurality of packet processing paths. The first classifier node stores node match data indicative of a match corresponding to content from a plurality of packet header field types, including first and second, different packet header field types. The second classifier node stores node match data indicative of a match corresponding to content from at least one packet header field type, including the first packet header field type.

公开(公告)号：US11423084B2

公开(公告)日：2022-08-23

申请号：US16539186

申请日：2019-08-13

Applicant: Metaswitch Networks Ltd.

Inventor： Michael Jeffrey Evans ,  Christian Dominic Lund

IPC: G06F16/901 ,  H04L69/22 ,  H04L45/74 ,  H04L41/12 ,  H04L43/045

Abstract: A graph data structure for a packet processing system is generated. The structure comprises graph data objects representing classifier nodes of a packet processing graph. The classifier nodes include a root node and leaf nodes. The root node is connected to each of the leaf nodes through respective corresponding packet processing paths through the graph. Each graph data object includes node match data indicative of at least one match to be applied by the respective classifier node. One or more n-type match graph data objects are identified, which include node match data indicative of an n-type match corresponding to content from n header field types. One or more (n+m)-type match graph data objects are identified, which include node match data indicative of an (n+m)-type match corresponding to a combination of content from a (n+m) different header field types. n and m are integer values of 1 or more.

公开(公告)号：US12003421B2

公开(公告)日：2024-06-04

申请号：US17732959

申请日：2022-04-29

Applicant: Metaswitch Networks Ltd.

Inventor： Michael Jeffrey Evans ,  Christian Dominic Lund

IPC: H04L47/2441 ,  H04L45/48 ,  H04L45/74 ,  H04L47/2483 ,  H04L69/22

CPC classification number: H04L47/2441 ,  H04L45/48 ,  H04L45/74 ,  H04L47/2483 ,  H04L69/22

Abstract: A packet processing system comprises a packet processing graph comprising classifier nodes including a root classifier node and leaf classifier nodes. The root classifier node is connected to each of the classifier nodes through a respective packet processing path in the graph. Each classifier node stores node match data indicative of at least one match to be applied by the respective classifier node. The classifier nodes comprise first and second classifier nodes arranged in a first packet processing path of said plurality of packet processing paths. The first classifier node stores node match data indicative of a match corresponding to content from a plurality of packet header field types, including first and second, different packet header field types. The second classifier node stores node match data indicative of a match corresponding to content from at least one packet header field type, including the first packet header field type.

公开(公告)号：US11297008B2

公开(公告)日：2022-04-05

申请号：US16538546

申请日：2019-08-12

Applicant: Metaswitch Networks Ltd.

Inventor： Michael Jeffrey Evans ,  Christian Dominic Lund

IPC: G06F9/44 ,  H04L12/24 ,  G06N5/02 ,  H04L49/253 ,  H04L45/60 ,  H04L47/2441 ,  H04L69/22

Abstract: Embodiments of the present disclosure relate to software-defined networks, and particularly, but not exclusively to programmable packet data processing systems, methods and computer readable products for use therein.

公开(公告)号：US09665408B2

公开(公告)日：2017-05-30

申请号：US14567938

申请日：2014-12-11

Applicant: Metaswitch Networks Ltd

Inventor： Christopher Neil Swindle ,  Murray William Rogers ,  John Patrick Batty ,  Mark Edward Overton ,  Christian Dominic Lund

IPC: G06F9/46 ,  G06F9/50 ,  H04L29/06

CPC classification number: G06F9/5088 ,  H04L65/1023 ,  H04L65/403 ,  H04L65/608

Abstract: Certain examples are described relating to resource allocation for one or more digital signal processors in a media gateway. Processing of telecommunication calls are allocated to different digital signal processor cores in the media gateway. When more processing resources are required for a call, a determination is made as to whether any of a set of digital signal processor cores are able to provide these resources. Responsive to a particular digital signal processor core being unable to provide the further processing resources, a reallocation process is initiated. This may involve reserving resources on a further digital processor core, releasing the original set of processing resources and allocating the processing of the call to the further digital processor core.