METODO DE CONMUTACION DE PROTECCION DE RED ETHERNET.

    公开(公告)号:ES2364537T3

    公开(公告)日:2011-09-06

    申请号:ES08832775

    申请日:2008-10-31

    Abstract: Un método para proporcionar conmutación de protección Ethernet en un Dominio de Puente de Red Troncal de Proveedor - Ingeniería de Tráfico (Provider Backbone Bridging Traffic Engineering), PBB-TE, donde el método comprende los pasos de: establecer (400) un primer enlace (102) PBB-TE entre un primer componente-B (108) y un segundo componente-B (112), donde el primer enlace PBB-TE tiene una primera ruta de conmutación Ethernet, ESP, (114) para tráfico unidireccional desde el primer componente-B hacia segundo componente-B y una segunda ESP (116) para tráfico unidireccional desde el segundo componente-B hacia el primer componente-B, en el que la primera ESP está asociada con un primer Identificador VLAN, VID, (128) y la segunda ESP está asociada con un segundo VID (166); establecer (400) un segundo enlace (104) PBB-TE entre el primer componente-B (108) y el segundo componente-B (112), donde el segundo enlace PBB-TE tiene una tercera ESP (118) para tráfico unidireccional desde el primer componente-B hacia el segundo componente-B y una cuarta ESP (120) para tráfico unidireccional desde el segundo componente-B hacia el primer componente-B, en el que la tercera ESP está asociada con un tercer VID (130) y la cuarta ESP está asociada con un cuarto VID (168); mapear (402) tráfico de datos al primer enlace (102) PBB-TE, donde el primer enlace PBB-TE corresponde a una entidad operativa y el segundo enlace (104) PBB-TE corresponde a una entidad de protección de respaldo; monitorizar (404) el primer enlace PBB-TE para detectar fallos; y en el momento (406) de detectar un fallo en el primer enlace (102) PBB-TE, remapear (408) tráfico de datos al segundo enlace (104) PBB-TE.

    46.
    发明专利
    未知

    公开(公告)号:DE602005014203D1

    公开(公告)日:2009-06-10

    申请号:DE602005014203

    申请日:2005-01-28

    Abstract: A finite state machine and a router adapted thereto for providing a service. The finite state machine is executed on a first and a second distinct hardware modules. The first module has access to a first memory and the second module has access to a second memory. The first and second memory are different and not shared therebetween. At least one transition between a first state and a second state of the finite state machine from the first module to the second module is performed by sending local information of the first module toward the second module. The local information at least indicates the second state of the finite state machine. Local information can be inserted by the router, for example, in a meta-data header.

    47.
    发明专利
    未知

    公开(公告)号:AT430427T

    公开(公告)日:2009-05-15

    申请号:AT05702837

    申请日:2005-01-28

    Abstract: A finite state machine and a router adapted thereto for providing a service. The finite state machine is executed on a first and a second distinct hardware modules. The first module has access to a first memory and the second module has access to a second memory. The first and second memory are different and not shared therebetween. At least one transition between a first state and a second state of the finite state machine from the first module to the second module is performed by sending local information of the first module toward the second module. The local information at least indicates the second state of the finite state machine. Local information can be inserted by the router, for example, in a meta-data header.

    48.
    发明专利
    未知

    公开(公告)号:DE602006005621D1

    公开(公告)日:2009-04-23

    申请号:DE602006005621

    申请日:2006-01-27

    Abstract: A method and nodes for aggregating data traffic over an access domain between service providers and user domains. An access edge node is introduced in the access domain between service providers and user domains. The access edge node hosts service agents, each service agent controlling a Virtual Local Area Network (VLAN) over the access domain for one of the service providers. The access edge node verifies whether a service agent, corresponding to the service provider identified in a received service request, exists. If so, the user domain is added to the VLAN corresponding to the requested service provider by creating a service binding at the access edge node. An access node providing access to the access domain to the user domain is informed of the service binding. Data traffic between the user domain and the identified service provider is aggregated over the access domain according to the created service binding.

    49.
    发明专利
    未知

    公开(公告)号:DE602006005620D1

    公开(公告)日:2009-04-23

    申请号:DE602006005620

    申请日:2006-02-10

    Abstract: The present invention relates to a method and nodes for handling broadcast messages over an access domain. For doing so, an access node and an access edge node are adapted to allow tunnelling of broadcast messages within Unicast messages transmitted over the access domain. The access node receives broadcast messages from user domains, intercepts the broadcast messages and forwards the received broadcast messages to the access edge node in Unicast messages. The access edge node receives and identifies the tunnelled broadcast messages. Then, the identified tunnelled broadcast messages are detunneled by the broadcast handler at the access edge node and handled by the broadcast handler.

    50.
    发明专利
    未知

    公开(公告)号:DE602006004307D1

    公开(公告)日:2009-01-29

    申请号:DE602006004307

    申请日:2006-02-14

    Abstract: The present invention relates to a method and nodes for handling multicast messages over an access domain. The method starts with the receipt of a multicast message from a service provider domain. The method pursues with the identification of a service agent corresponding to the service provider domain from which the multicast message is received. Then, the content of a Virtual Local Area Network (VLAN) Tag field of the multicast message is modified so as to correspond to the identified service agent. The modified multicast message is forwarded on the access domain. Upon receipt of the modified multicast message at an access node, the access node identifies at least one service binding related to the service agent identified in the VLAN Tag field of the received multicast message. For each related service binding, the access node adapts the VLAN Tag field of the multicast message so as to correspond to a local VLAN information, and forwards the adapted multicast message on a user port corresponding to the service binding. The invention also includes an access edge node and an access node adapted to perform the method of the present invention.

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