Invention Grant
- Patent Title: Fast control path and data path convergence in layer 2 overlay networks
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Application No.: US16317532Application Date: 2016-07-25
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Publication No.: US10771380B2Publication Date: 2020-09-08
- Inventor: V. S. Jagannadham (Jack) Jonnalagadda , Sajjad Ahmed , Antoni Przygienda , Pramodh D'Souza
- Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Sage Patent Group
- International Application: PCT/IB2016/054428 WO 20160725
- International Announcement: WO2018/020290 WO 20180201
- Main IPC: H04L12/703
- IPC: H04L12/703 ; H04L12/46 ; H04L12/715 ; H04L12/721 ; H04L12/707 ; H04L12/723 ; H04L29/12 ; H04L12/761

Abstract:
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.
Public/Granted literature
- US20190245779A1 FAST CONTROL PATH AND DATA PATH CONVERGENCE IN LAYER 2 OVERLAY NETWORKS Public/Granted day:2019-08-08
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