Telefonaktiebolaget Lm Ericsson (publ)

Sajjad Ahmed

Pramodh D'Souza

V S Jagannadham (Jack) Jonnalagadda

Antoni Bronislaw Przygienda

Prasanna Chalapathy

Antoni Przygienda

VS Jagannadham Jonnalagadda

A method and apparatus for enabling dynamic reroute in a redundant system is provided. A network device is operative to determine whether a state of a link that couples the first network device with a third network device is active. In response to determining that the state of the link is active causing a payload of a packet to be forwarded towards the third network device through the second network interface of the first network device based on a second IP address; and responsive to determining that the state of the link is not active causing the second payload to be forwarded towards the third network device through a third network interface of the second network device based on the second IP address.

Dynamic re-route in a redundant system of a packet network

Methods and apparatuses for fast convergence in Layer 2 overlay network are described. Forwarding of Layer 2 (L2) traffic addressed to one or more remote L2 destinations is performed according to a remote L2 (RL2) instance, where the RL2 instance identifies a primary path for forwarding the traffic towards the remote L2 destinations, and a provider edge service label (PESL) instance associated with a broadcast domain including one or more network devices for forwarding the L2 traffic towards the L2 destination, and where the PESL instance is identified with a unique immutable PESL instance label. In response to a network event, an update of the RL2 instance is performed. The update results in an update of a data plane for forwarding the L2 traffic without necessitating an update of forwarding table entries for each one of the one or more remote L2 destination.

Fast control path and data path convergence in layer 2 overlay networks

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Cupertino, CA, United States of America

Sajjad Ahmed