I recommend you do not use VC at all, and instead use ESI-LAG for the
server-facing links.
On Mon, Oct 04, 2021 at 11:43:23AM +, Giovanni Bellac via juniper-nsp wrote:
> Date: Mon, 4 Oct 2021 11:43:23 + (UTC)
> From: Giovanni Bellac
> To: "juniper-nsp@puck.nether.net"
> Subject: QFX VC as part of EVPN - redundancy not working
> Return-Path:
>
> Hi all,
> I am using a QFX5100 2-member-VC as a L2 gateway in a centrally routed
> EVPN/VXLAN setup. It seems that the VC redundancy does not work in this
> configuration properly. For test purposes I am promoting the backup-RE as
> master-RE and afterwards restarting the old master-RE (now backup-RE). While
> restarting the backup-RE member the connection to the servers is always lost.
> The servers are connected to both members via LACP.
> I have tried several JunOS versions (21.1.R1, 20.4R2-S2, 20.2R2-S3,
> 19.4R3-S3) but the results are always the same.
>
> Any suggestions to get this work as intended?
> Kind regardsGiovanni
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