Synchronisierung des Multicast-Zustands zwischen Multi-Homed-Routern in einem Virtuellen Privaten Ethernet-Netzwerk

Details

Veröffentlichungs-Nr.

EP3367619

Aktenzeichen

EP17198869

Anmeldetag

27. Oktober 2017

Veröffentlichung

11. Dezember 2019

Erteilung

11. Dezember 2019

Rechtsraum

EP

IPC

H04L12/46H04L12/761H04L12/801// H04L12/703H04L12/721H04L12/725

Abstract

Techniques are disclosed for handling withdrawals of Border Gateway Protocol (BGP) join synch routes used to synchronize multicast group join requests. In one example, a first provider edge (PE) router of a plurality of PE routers on an Ethernet segment of an Ethernet Virtual Private Network (EVPN) receives, from a second PE router, a withdrawal of a BGP join synch route. In response, the first PE router determines whether a disruption event or a multicast state timeout event at the second PE router caused the withdrawal. If the disruption event caused the withdrawal, the first PE router retains a multicast state for the multicast group and forwards multicast traffic for the multicast group to a customer edge (CE) router multi-homed to the plurality of the PE routers. If the multicast state timeout event caused the withdrawal, the first PE router deletes the multicast state and stops forwarding the multicast traffic.

Anmelder

Firma

Juniper Networks, Inc.

Land

🇺🇸 USA

Fachgebiete