Patents by Inventor Lars Ernstrom

Lars Ernstrom 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: 20140369186
    Abstract: A method implemented for a link aggregation group is disclosed. The link aggregation group contains a local interface and a remote interface. The local interface is a logical interface formed by a plurality of network elements including a local network element and a peer network element. The local network element communicates with the peer network element through an inter-peer link. The method starts with determining that the local network element is active by checking that an aggregate state of the links coupled to the local network element is active. The method continues with detecting an anomaly of the active links and sending a notification to the peer network element about the anomaly. Then method continues with receiving an activation confirmation that the peer network element is ready for switching and switching traffic from the active links to the inter-peer link in response to receiving the activation confirmation.
    Type: Application
    Filed: June 17, 2013
    Publication date: December 18, 2014
    Inventors: Lars Ernstrom, Allwyn Carvalho, Veeranjaneyulu Gorla, Anjing Wang, Kiran Sasidharan Pillai, Chezhian Renganathan
  • Publication number: 20140269261
    Abstract: A method is disclosed that is implemented by a router for executing an internet protocol fast reroute process in response to a network event invalidating a current route to a destination node without degrading forwarding plane functionality or performance caused by indirect forwarding information base lookups. The method comprises a set steps including receiving or generating the network event by the router, the network event associated with a network event identifier and looking up the network event identifier in an event table to determine routes that are affected by the network event. The method further includes determining whether a route with a fast reroute forwarding object is affected by the network event in the routing information base and overwriting a current next hop forwarding object using a backup next hop forwarding object in the forwarding information base.
    Type: Application
    Filed: May 24, 2013
    Publication date: September 18, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Pramodh D'Souza, Lars Ernström, Reda Haddad, Evgeny Tantsura, Jakob Heitz
  • Patent number: 8750309
    Abstract: A method in a network element of a packet data network classifies a data packet for application of a packet data network policy. A root node compound bit mask is applied to bits of a received data packet. The data packet has data in a plurality of fields. The compound bit mask has a plurality of bit masks each having bits in a different data packet field. The masked bits of the compound bit mask are applied to root node bit tables, one for each bit mask of the compound bit mask. A branch node from the root node is selected based on a bit table look up.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: June 10, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventor: Lars Ernström
  • Publication number: 20130223446
    Abstract: A method in a network element of a packet data network classifies a data packet for application of a packet data network policy. A root node compound bit mask is applied to bits of a received data packet. The data packet has data in a plurality of fields. The compound bit mask has a plurality of bit masks each having bits in a different data packet field. The masked bits of the compound bit mask are applied to root node bit tables, one for each bit mask of the compound bit mask. A branch node from the root node is selected based on a bit table look up.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 29, 2013
    Inventor: Lars Ernström