Telefonaktiebolaget Lm Ericsson (Publ)

Zoltan Toth

Pramodh D'Souza

Lars Ernstrom

Lars Westberg

Attila Mihály

András Császár

János Harmatos

Antoni Bronislaw Przygienda

Oktavian Papp

A network device, is to be deployed in a network between a first network domain and a second network domain, and is to be configured for fast reroute. The network device includes a first traffic forwarder control module, corresponding to the first network domain, which is to determine a primary next hop in the first network domain. The control plane includes a second traffic forwarder control module, corresponding to the second network domain, which is to determine a backup next hop in the second network domain. The backup next hop is to be used as a fast reroute for the primary next hop in response to a failure associated with the primary next hop. The control plane includes a controller module, in communication with the first and second traffic forwarder control modules, which is to configure a forwarding structure of the forwarding plane with the primary and backup next hops.

Inter-domain fast reroute methods and network devices

Exemplary methods performed by a first network device (ND) include generating first and second prefix entries associating incoming Internet Protocol (IP) traffic to first and second data structures (DSs), respectively. Generating the first DS includes generating a first proxy including forwarding information causing incoming IP traffic to be forwarded to a second ND, and generating a second proxy referencing a third DS. Generating the second DS includes generating a first proxy including forwarding information causing incoming IP traffic to be forwarded to the second ND, and generating a second proxy referencing the third DS. The methods include generating the third DS including forwarding information causing the incoming IP traffic to be forwarded to a third ND, the third DS further including first state information indicating whether the forwarding information included in the first proxies of the first and second DSs should be used for forwarding the incoming IP traffic.

Method and apparatus for optimal, scale independent failover redundancy infrastructure

A method is provided of enabling access for a terminal (-) to a remote network () via a mobile network (). A first connectivity service function () is provided as part of the mobile network (). A second connectivity service function () is provided as part of the remote network (). A third connectivity service function () is provided associated with the terminal (-). The first connectivity service function () is adapted to cooperate in establishing a first layer 2 tunnel () between itself () and the second connectivity service function (). The first connectivity service function () is also adapted to cooperate in establishing a second layer 2 tunnel () between itself () and the third connectivity service function (). The terminal (-) thereby has layer 2 access into the remote network () through the first and second tunnels () using the first, second and third connectivity service functions ().

Method and apparatus for use in a communications network

Growing community of inventors

Santa Clara, CA, United States of America

Zoltan Toth