Invention Grant
- Patent Title: Fast convergence of EVPN networks for multi homing topologies
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Application No.: US14921965Application Date: 2015-10-23
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Publication No.: US09860150B2Publication Date: 2018-01-02
- Inventor: Nitin Singh , Kapil Arora , Ramesh Kandula , Santosh Pallagatti Kotrabasappa
- Applicant: Juniper Networks, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: Juniper Networks, Inc.
- Current Assignee: Juniper Networks, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Shumaker & Sieffert, P.A.
- Priority: IN5257/CHE/2015 20151001
- Main IPC: H04L12/24
- IPC: H04L12/24 ; H04L12/26 ; H04L12/721 ; H04L12/751 ; H04L12/46 ; H04L12/707 ; H04L12/413

Abstract:
In general, techniques of this disclosure may enable a remote provider edge (PE) router to improve convergence time in response to a link failure in an Ethernet Virtual Private Network (EVPN) by establishing per-Ethernet Segment Identifier (ESI) Bidirectional Forwarding Detection (BFD) sessions with other PE routers that are coupled to the PE router in an EVPN. The remote PE may determine that at least two PE routers with the remote PE are locally connected to a multi-homed customer network by a particular Ethernet Segment. The remote PE may send, based on determining that the at least two PE routers are connected to the multi-homed customer network by the particular Ethernet Segment, an ESI Ping request packet through the intermediate network to one of the at least two PE routers, wherein the ESI Ping request packet includes at least a BFD discriminator and an ESI for the particular Ethernet Segment.
Public/Granted literature
- US20170099180A1 FAST CONVERGENCE OF EVPN NETWORKS FOR MULTI HOMING TOPOLOGIES Public/Granted day:2017-04-06
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