Invention Grant
- Patent Title: Communicating IGMP leave requests between load-balanced, multi-homed provider-edge routers in an ethernet virtual private network
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Application No.: US15281362Application Date: 2016-09-30
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Publication No.: US10230535B2Publication Date: 2019-03-12
- Inventor: Vikram Nagarajan , Robert W. Kebler , Eric C. Rosen , Princy T. Elizabeth , Kapil Arora
- 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: IN201641026020 20160729
- Main IPC: H04L12/28
- IPC: H04L12/28 ; H04L12/18 ; H04L7/00 ; H04L12/46 ; H04L12/66 ; H04L12/741 ; H04L12/947 ; H04L12/751 ; H04L12/707 ; H04L29/06 ; H04L29/08 ; H04L12/721

Abstract:
In general, the disclosure describes techniques for communicating multicast group leave requests between two or more load-balanced, multi-homed PE routers included in an Ethernet Virtual Private Network (EVPN). The techniques of the disclosure enable the two or more PE routers to synchronize IGMP state and routing information amongst one another to ensure that the one of the multi-homed PE routers elected as the designated forwarder (DF) ceases forwarding the multicast group traffic to the CE router, even if it is not the PE router that receives the IGMP leave request.
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