Verbesserung des Aliasing-Verhaltens in Multihomed-Stellen in Netzwerken mit Virtuellem Privatem Ethernet-Netzwerk (evpn)

Details

Veröffentlichungs-Nr.

EP3547624

Aktenzeichen

EP19160356

Anmeldetag

1. März 2019

Veröffentlichung

7. September 2022

Erteilung

7. September 2022

Rechtsraum

EP

IPC

H04L12/46H04L45/02// H04L45/00

Abstract

For use in an Ethernet Virtual Private Network (EVPN) in which a site including at least one MAC-addressable device is multihomed, via a customer edge device (CE), to at least two provider edge devices (PE1 and PE2), the potential problem of one of the at least two provider edge devices (PE2) dropping or flooding packets designed for a MAC-addressable device of the multihomed site is solved by controlling advertisements of an auto-discovery per EVPN instance (A-D/EVI) route (or an auto-discovery per Ethernet segment identifier (A-D/ESI) route) to a remote provider edge device (PE3), belonging to the EVPN but not directly connected with the CE. Such advertisements may be controlled by: (a) determining, by PE2, whether or not a MAC-learning condition is met; and (b) responsive to a determination that the MAC-learning condition is met, advertising, by PE2, an A-D/EVI route (or an A-D/ESI route) to the remote provider edge device (PE3), and otherwise, responsive to a determination that the MAC-learning condition is not met, suppressing, by PE2, an A-D/EVI route advertisement (or an A-D/ESI route advertisement).

Anmelder

Firma

Juniper Networks, Inc.

Land

🇺🇸 USA

Fachgebiete