公开(公告)号：WO2013008134A3

公开(公告)日：2013-06-27

申请号：PCT/IB2012053389

申请日：2012-07-04

Applicant: ERICSSON TELEFON AB L M ,  JOCHA DAVID ,  KERN ANDRAS

Inventor： JOCHA DAVID ,  KERN ANDRAS

IPC: H04L12/26

CPC classification number: H04L43/062 ,  H04L41/00 ,  H04L41/046 ,  H04L43/026 ,  H04L43/04 ,  H04L43/08 ,  H04L43/0811 ,  H04L43/0829 ,  H04L43/0852 ,  H04L49/555

Abstract: A method performed by a network element implementing an OpenFlow controller, the OpenFlow controller including an OAM module. The OAM module services an OAM function request in a network implementing OpenFlow. The method requests that a subset of OpenFlow switches in the network report metrics for an OpenFlow data flow to provide the OAM module with information for executing the requested OAM function. The method includes receiving by an OAM module a request to execute the OAM function, generating a trigger monitoring message defining actions to be performed by an OpenFlow switch, wherein the actions are to provide the metrics for the OpenFlow data flow, receiving a plurality of monitor response messages, each including the metrics for the OpenFlow data flow, correlating the plurality of monitor response messages with the OAM function request, executing the requested OAM function, and returning a result of the requested OAM function.

Abstract translation: 由实现OpenFlow控制器的网络元件执行的方法，OpenFlow控制器包括OAM模块。 OAM模块为实现OpenFlow的网络提供OAM功能请求。 该方法请求网络中的OpenFlow交换机的子集报告OpenFlow数据流的度量，以向OAM模块提供用于执行所请求的OAM功能的信息。 该方法包括由OAM模块接收执行OAM功能的请求，生成定义要由OpenFlow交换机执行的动作的触发器监视消息，其中动作将提供OpenFlow数据流的度量，接收多个监视器 每个响应消息包括用于OpenFlow数据流的度量，将多个监视器响应消息与OAM功能请求相关联，执行所请求的OAM功能，以及返回所请求的OAM功能的结果。

公开(公告)号：ES2434261T3

公开(公告)日：2013-12-16

申请号：ES10701636

申请日：2010-01-04

Applicant: ERICSSON TELEFON AB L M

Inventor： JOCHA DAVID ,  KERN ANDRAS ,  CSASZAR ANDRAS

IPC: H04L45/02 ,  H04L45/42

Abstract: Un método para su uso en un Cliente de Cálculo de Ruta (24) de un nodo en una red, comprendiendo el método:enviar un mensaje de solicitud (52) a un Elemento de Cálculo de Ruta (28) de la red para el cálculo de unaruta; Recibir un mensaje de respuesta (54) desde el Elemento de Cálculo de Ruta que comprende informaciónidentificativa de una ruta calculada; e Intentar (58) el establecimiento de una conexión basándose en la ruta calculada; caracterizado porque el método comprende también: recibir desde el Elemento de Cálculo de Ruta una solicitud de información de retorno acerca de un resultadodel intento de establecimiento de la conexión; y reportar (64) al Elemento de Cálculo de Ruta el resultado del intento de establecimiento de la conexión.

公开(公告)号：CA2841230A1

公开(公告)日：2013-01-17

申请号：CA2841230

申请日：2012-07-04

Applicant: ERICSSON TELEFON AB L M

Inventor： JOCHA DAVID ,  KERN ANDRAS

IPC: H04L45/42

Abstract: A method performed by a network element implementing an OpenFlow controller, the OpenFlow controller including an OAM module. The OAM module services an OAM function request in a network implementing OpenFlow. The method requests that a subset of OpenFlow switches in the network report metrics for an OpenFlow data flow to provide the OAM module with information for executing the requested OAM function. The method includes receiving by an OAM module a request to execute the OAM function, generating a trigger monitoring message defining actions to be performed by an OpenFlow switch, wherein the actions are to provide the metrics for the OpenFlow data flow, receiving a plurality of monitor response messages, each including the metrics for the OpenFlow data flow, correlating the plurality of monitor response messages with the OAM function request, executing the requested OAM function, and returning a result of the requested OAM function.

公开(公告)号：CA2841230C

公开(公告)日：2019-05-07

申请号：CA2841230

申请日：2012-07-04

Applicant: ERICSSON TELEFON AB L M

Inventor： JOCHA DAVID ,  KERN ANDRAS

IPC: H04L45/42

Abstract: A method performed by a network element implementing an OpenFlow controller, the OpenFlow controller including an OAM module. The OAM module services an OAM function request in a network implementing OpenFlow. The method requests that a subset of OpenFlow switches in the network report metrics for an OpenFlow data flow to provide the OAM module with information for executing the requested OAM function. The method includes receiving by an OAM module a request to execute the OAM function, generating a trigger monitoring message defining actions to be performed by an OpenFlow switch, wherein the actions are to provide the metrics for the OpenFlow data flow, receiving a plurality of monitor response messages, each including the metrics for the OpenFlow data flow, correlating the plurality of monitor response messages with the OAM function request, executing the requested OAM function, and returning a result of the requested OAM function.

公开(公告)号：MX2012000332A

公开(公告)日：2012-01-30

申请号：MX2012000332

申请日：2009-07-24

Applicant: ERICSSON TELEFON AB L M

Inventor： JOCHA DAVID ,  KERN ANDRAS

IPC: H04L12/56 ,  H04L45/50

Abstract: Se describen extensiones a un procedimiento de envío de trama de Intercambio de Etiqueta de Múltiples protocolos (MPLS) en un nodo de MPLS. Un descriptor de contexto se define para cada trama recibida en una conexión terminada en dicho nodo y en donde este descriptor de contexto se provee junto con la trama a una función correspondiente (v.gr., operaciones, Administración y Mantenimiento, OAM) si es necesario. El descriptor del contexto se construye con base en atributos clave que caracterizan la conexión terminada sobre la cual se recibe la trama y dirige un punto final de función particular (MEP) Puente de Selector de un caso de protección, etc.) de una función correspondiente (OAN, protección, etc.). En una modalidad, un nodo de Intercambio de Etiqueta de múltiples Protocolos (MPLS) se dirige para revisar no solo la primera sino la segunda etiqueta y no tira la primera etiqueta (y el espacio de etiqueta si es relevante) cuando la segunda etiqueta es la Etiqueta de Canal de Asociación Genérica (GAL). De esta manera, el contexto original del paquete se mantiene (es decir, la información que se refiere a la conexión sobre la cual se recibió el paquete) y puede usarse para desmultiplexar MEP correspondiente. Luego los identificadores dentro de la carga útil de OAM se pueden usar para verificar la conectividad. Otras modalidades describen soluciones alternativas.

公开(公告)号：HUE025074T2

公开(公告)日：2016-01-28

申请号：HUE12743229

申请日：2012-07-04

Applicant: ERICSSON TELEFON AB L M (PUBL)

Inventor： JOCHA DAVID ,  KERN ANDRAS

IPC: H04L45/42

公开(公告)号：IN315DEN2012A

公开(公告)日：2015-05-08

申请号：IN315DEN2012

申请日：2012-01-11

Applicant: ERICSSON TELEFON AB L M

Inventor： JOCHA DAVID ,  FARKAS JANOS

IPC: H04L12/26

Abstract: A method of measuring loss in a multicast transmission in a network is described. Service frames including a service multicast destination address are sent from a source node towards a receiving node. A counter of the number of service frames sent is maintained at the source node. This counter is periodically read, and its value copied into a loss measurement OAM frame. The loss measurement OAM frame includes a unique identifier and an OAM destination address which is different to the service multicast destination address, and is sent from the source node towards the receiving node. Every time the sent frames counter is read, a measurement indicator frame is also sent from the source node towards the receiving node. The measurement indicator frame includes the unique identifier so that it can be related to the loss measurement OAM frame. The measurement indicator frame also includes the service multicast destination address, although the measurement indicator frame is distinguishable from the service frames. The receiving node eventually receives the loss measurement OAM frame and the measurement indicator frame, and calculates the number of lost or delayed service frames by comparing the number of service frames received at the receiving node at the time the measurement indicator frame is received with the sent frames counter value contained in the loss measurement OAM frame. The calculation is only performed when the loss measurement OAM frame and measurement indicator frame having the same identifier have been received by the receiving node.

公开(公告)号：HK1170607A1

公开(公告)日：2013-03-01

申请号：HK12111228

申请日：2012-11-07

Applicant: ERICSSON TELEFON AB L M

Inventor： JOCHA DAVID ,  KERN ANDRAS

IPC: H04L45/50

Abstract: Extensions to a Multi-Protocol Label Switching (MPLS) frame forwarding procedure in an MPLS node are described. A context descriptor is defined for each frame received on a connection terminated at that node, and where this context descriptor is provided together with the frame to a corresponding function (e.g. Operations, Administration and Maintenance, OAM) if needed. The context descriptor is constructed based on key attributes characterizing the terminated connection, over which the frame is received, and addresses a particular function endpoint (Maintenance Endpoints (MEPs), Selector Bridge of a protection instance etc.) of a corresponding function (OAM, protection, etc.). In one embodiment, a Multi-Protocol Label Switching (MPLS) node is directed to check not only the first but also the second label, and not to drop the first label (and the label space if relevant) when the second label is the Generic Association Channel Label (GAL). In this way, the original context of the packet is kept (i.e. the information relating to the connection over which the packet was received), and can be used for de-multiplexing to the corresponding MEP. Then the identifiers within the OAM payload can be used for verification of the connectivity. Other embodiments describe alternative solutions.