Patents by Inventor Attila Takács

Attila Takács has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120170489
    Abstract: There is disclosed a manner of managing the active topology, that is the scheme for forwarding data, in a computer network such as an Ethernet local area network. A root bridge is selected from a plurality of bridges in the network; the root bridge calculating at least one spanning tree from a topology database that has been populated by bridge neighbor information gleaned from link state advertising messages. The root bridge may also calculate an alternate topology for implementation in the event a failure condition that affects the primary spanning tree is detected. The root bridge then advertises the spanning tree and remotely configures the port states of the bridges in the spanning tree through tree advertising messages that the bridges are arranged to process and set their ports accordingly.
    Type: Application
    Filed: March 8, 2012
    Publication date: July 5, 2012
    Inventors: János Farkas, Csaba Antal, Attila Takács, Panagiotis Saltsidis
  • Publication number: 20120120809
    Abstract: A method and network are described herein for provisioning Operations, Administration, and Maintenance (OAM) entities for a connection when setting-up the connection between an ingress edge node and an egress edge node.
    Type: Application
    Filed: January 23, 2012
    Publication date: May 17, 2012
    Inventors: Balázs Peter Gero, Attila Takács, Benoit Tremblay, Sylvain Monette, Joacim Halén
  • Patent number: 8155030
    Abstract: There is disclosed a manner of managing the active topology, that is the scheme for forwarding data, in a computer network such as an Ethernet local area network. A root bridge is selected from a plurality of bridges in the network; the root bridge calculating at least one spanning tree from a topology database that has been populated by bridge neighbor information gleaned from link state advertising messages. The root bridge may also calculate an alternate topology for implementation in the event a failure condition that affects the primary spanning tree is detected. The root bridge then advertises the spanning tree and remotely configures the port states of the bridges in the spanning tree through tree advertising messages that the bridges are arranged to process and set their ports accordingly.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: April 10, 2012
    Assignee: Teleaktiebolaget L M Ericsson (Publ)
    Inventors: János Farkas, Csaba Antal, Attila Takács, Panagiotis Saltsidis
  • Patent number: 8102774
    Abstract: A method and network are described herein for provisioning Operations, Administration, and Maintenance (OAM) entities for a connection when setting-up the connection between an ingress edge node and an egress edge node.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: January 24, 2012
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Balázs Peter Gerö, Attila Takács, Benoit Tremblay, Sylvain Monette, Joacim Halén
  • Patent number: 8072900
    Abstract: A mobile communications network has separation between a user plane (UP) and a control plane (CP). The network includes plural entities, including plural user plane entities (UPEs), which form the user plane and plural mobility management entities (MMEs), which form the control plane. At least one of the entities is configured to transmit advertisement information. The advertisement information includes status information and configuration information of the at least one entity. The network also includes a node or unit configured to use both the advertisement information and transport information transported on the user plane to select a user plane entity for attachment to a wireless station serviced by the network.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: December 6, 2011
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Csaba Antal, Attila Takács, Lars Westberg
  • Patent number: 8009568
    Abstract: Reducing congestion in an IP domain wherein congested data flows arriving at an egress edge node of the network are identified. Total congestion represented by the congested flows is determined, and a congestion extent notification is sent from the egress edge node to its ingress edge node peer. The congestion extent notification includes information regarding the total congestion and is sent on a per-class basis. Congested core routers in the network insert DSCPs into data packets passing through them to enable the egress edge nodes to identify the affected flows. The core routers may also send congestion metric messages, designed to follow the same path as the marked packets, to inform the egress edge nodes of the extent of congestion. In an alternative method, the egress edge nodes inform their ingress peers that congestion is present, without initially identifying the extent. The ingress edge node sends a query downstream with a congestion metric.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: August 30, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Ferenc Pinter, Attila Bader, Andras Csaszar, Attila Takacs
  • Publication number: 20110188509
    Abstract: A method to facilitate the broadcast of frames between a set of Edge Nodes of a transport network, where nodes of the transport network forward frames using labels added to the frames at ingress Edge Nodes. The method comprises, at each of said Edge nodes and at intermediate nodes in the paths between said Edge Nodes, installing an entry or entries into a forwarding table mapping frame labels to output forwarding ports such that said entries together form a single forwarding construct such that frames labelled by any of the Edge Nodes of said set are transmitted to all other Edge Nodes of the same set. Upon receipt of a frame at one of said Edge Nodes or intermediate nodes, the provided forwarding table is used to map the frame label of the frame to one or more forwarding ports. Frames are then sent via the identified forwarding port(s).
    Type: Application
    Filed: October 2, 2008
    Publication date: August 4, 2011
    Inventors: András Kern, Attila Takács
  • Patent number: 7965716
    Abstract: A bridge and method are described herein that translate at least a portion of a port VID (VLAN identifier) for an incoming tagged frame to form a relay VID for a corresponding relay tagged frame by using a VID mask table, a VID filter table, and a VID rule table. In an additional embodiment, the bridge and method also implement a port VLAN membership technique to ensure that an ingress port associated with the port VID is a member of the current VLAN.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: June 21, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventor: Attila Takacs
  • Patent number: 7965711
    Abstract: A method and apparatus that operates two bridging protocols in a hybrid bridging node is described. The operation of the two bridging protocols in the hybrid node allows for an incremental transition of a provider bridging network from operating a legacy bridging protocol that shares MAC addresses to a bridging network that operates VPLS and/or PBB bridging protocols. The hybrid bridging node selectively broadcasts unicast packets with unknown MAC addresses from the nodes operating VPLS and/or PBB to nodes operating a legacy bridging protocol.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: June 21, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Sriganesh Kini, Attila Takács
  • Patent number: 7948993
    Abstract: A method and apparatus that operates two bridging protocols in a hybrid bridging node is described. The operation of the two bridging protocols in the hybrid node allows for an incremental transition of a provider bridging network from operating a legacy bridging protocol that shares MAC addresses to a bridging network that operates VPLS and/or PBB bridging protocols. The hybrid bridging node selectively broadcasts address resolution packets and unicast packets with unknown MAC addresses from the nodes operating VPLS and/or PBB to nodes operating a legacy bridging protocol.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: May 24, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Sriganesh Kini, Attila Takacs
  • Publication number: 20110116418
    Abstract: A registration protocol for setting up and updating a tree that defines the active topology in an Ethernet network includes a plurality of application components and a plurality of attribute declaration components corresponding to the application components, wherein the application components declare and register attribute values and the corresponding attribute declaration components make and withdraw registration of the attributes.
    Type: Application
    Filed: November 15, 2008
    Publication date: May 19, 2011
    Inventors: János Farkas, Csaba Antal, Attila Takács
  • Publication number: 20110080854
    Abstract: There is disclosed a method and apparatus for facilitating a network, such as an Ethernet LAN, for efficient forwarding of data traffic by collecting neighbor information, generating and distributing link state advertisements, populating a topology database for the network, and calculating trees for each bridge serving as a root bridge. In a preferred embodiment the method and system also prepare one or more backup topologies, and store them for use if they are needed due to a failure condition detected in the network. In a particularly preferred embodiment, probabilities are assigned to various potential failure conditions, and the probability values are used to decide which backup topologies to calculate, store, or use.
    Type: Application
    Filed: January 18, 2008
    Publication date: April 7, 2011
    Inventors: János Farkas, Csaba Antal, Attila Takács, Panagiotis Saltsidis
  • Publication number: 20110013640
    Abstract: A method is provided for use at a first node of a network. The first node (B) has an input path for receiving Ethernet frames destined for a second node of the network. The first node (B) also has a first output (working) path for forwarding the received Ethernet frames towards the second node. A failure along the first output (working) path is detected at the first node. Following such failure detection, the received Ethernet frames are caused, at the first node, to be re-routed along a second output (backup) path, different to the first output (working) path, towards the second node. The re-routing is performed by using (e.g. referring to and/or changing) respective indications (VLAN1) applied to the Ethernet frames to distinguish those Ethernet frames to be forwarded along the first output (working) path from those Ethernet frames to be forwarded along the second output (backup) path.
    Type: Application
    Filed: March 16, 2009
    Publication date: January 20, 2011
    Inventors: János Farkas, Csaba Antal, Attila Takács
  • Publication number: 20110007667
    Abstract: A system and method of automatically configuring a Service Instance Identifier (I-SID) in a Generalized Multiprotocol Label Switching (GMPLS) controlled network. The method begins by identifying a specific I-SID for a specific service in the GMPLS controlled network. Next, the identified I-SID is automatically configured within a Backbone Edge Bridge (BEB) with a Resource Reservation Protocol-Traffic Engineering (RSVP-TE) extension. The automatic configuration may be implemented by several different embodiments. In one embodiment, the I-SID may be carried in a SESSION_ATTRIBUTE object. In another embodiment, the I-SID may be mapped to a Short Call ID field in a Session object. Alternatively, the I-SID may be carried in an Endpoint ID Type-Length-Value (TLV). The I-SID may also be carried in a new TLV in a LSP_ATTRIBUTES or CALL— ATTRIBUTES object.
    Type: Application
    Filed: February 26, 2009
    Publication date: January 13, 2011
    Inventors: Attila Takács, András Kern
  • Publication number: 20100322254
    Abstract: A bridge and method are described herein that translate at least a portion of a port VID (VLAN identifier) for an incoming tagged frame to form a relay VID for a corresponding relay tagged frame by using a VID mask table, a VID filter table, and a VID rule table. In an additional embodiment, the bridge and method also implement a port VLAN membership technique to ensure that an ingress port associated with the port VID is a member of the current VLAN.
    Type: Application
    Filed: November 27, 2007
    Publication date: December 23, 2010
    Inventor: Attila Takacs
  • Publication number: 20100316058
    Abstract: A system and method of demultiplexing Provider Backbone Bridging Traffic Engineering (PBB-TE) service instances. The method is used when monitoring service instances between a first bridge port and a second bridge port by exchanging CFM frames over each service instance. The CFM frame is received by the second bridge port where the complete ESP-3-tuple is demultiplexed. The CCM frames may be demultiplexed by a Full Traffic Engineering Service Instance Multiplex Entity which demultiplexes both the source address value and destination address value of the CCM frames.
    Type: Application
    Filed: February 10, 2009
    Publication date: December 16, 2010
    Inventors: Balazs Peter Gero, Attila Takacs, Panagiotis Saltsidis
  • Patent number: 7849215
    Abstract: Methods, edge routers and an edge-router-refresh network signalling message used to update state information in edge routers. A data session is established on a path from a source towards a destination connected from the source via a plurality of Autonomous Systems (AS). The edge-router-refresh network signalling message is created by an edge router acting an an ingress edge router. The edge-router-refresh network signalling message comprises an identifier of the data session, an identifier of the edge router, which issued the edge-router-refresh message and an indication that the edge-router-refresh message is meant to be used by the edge routers present on the modified path. Optionally, the edge-router-refresh network signalling message further comprises a list of the plurality of AS traversed by the path before the modification.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: December 7, 2010
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Andras Csaszar, Attila Takacs, Attila Bader
  • Publication number: 20100303076
    Abstract: A method of routing packets between nodes of a packet switched network, the method comprising receiving a packet at a first node, the packet comprising routing information and payload data, sending said routing information to a second node in the routing path via a first transmission medium having a relatively high transmission speed, and sending said payload data to said second node via a second transmission medium having a relatively low transmission speed. Upon receipt of said routing information, said second node is able to prepare or begin preparation for onward routing of the packet in advance of receipt of said payload.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 2, 2010
    Inventors: Raimo Vuopionpera, Attila Takacs, Boris Dortschy, Henrik Almeida, Attila Bader
  • Publication number: 20100290345
    Abstract: A method and network are described herein for provisioning Operations, Administration, and Maintenance (OAM) entities for a connection when setting-up the connection between an ingress edge node and an egress edge node.
    Type: Application
    Filed: July 29, 2008
    Publication date: November 18, 2010
    Inventors: Balázs Peter Gerö, Attila Takács, Benoit Tremblay, Sylvain Monette, Joacim Halén
  • Publication number: 20100232316
    Abstract: A system, method, and Ethernet bridge utilizing forced MAC learning to set up a path from an originating node, PON (23) to one or more terminating nodes, PTN (12) through intermediate bridge nodes (14, 21). In the point-to-point case, a Previous Hop Bridge (PHB) list defines the links in the path. Each link includes a destination address, source address, port number, and VID. A path learning frame (13, 19, 22) containing the list is sent in reverse order from the PTN through the intermediate bridge nodes to the PON. Each node in the path saves the received frame's header information as learned path information using standard MAC learning functionality, removes the node's own information from the list, and forwards the frame with the remainder of the list to the next node using the port specified by the port number for that link. When the frame arrives at the PON, all nodes have saved the learned path information.
    Type: Application
    Filed: December 8, 2006
    Publication date: September 16, 2010
    Inventor: Attila Takacs