From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (unknown [212.224.123.68]) by lore.proxmox.com (Postfix) with ESMTPS id 1C2231FF141 for ; Fri, 16 Jan 2026 12:09:03 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 8455D16CEE; Fri, 16 Jan 2026 12:08:53 +0100 (CET) From: Hannes Laimer To: pve-devel@lists.proxmox.com Date: Fri, 16 Jan 2026 12:08:43 +0100 Message-ID: <20260116110843.89615-4-h.laimer@proxmox.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260116110843.89615-1-h.laimer@proxmox.com> References: <20260116110843.89615-1-h.laimer@proxmox.com> MIME-Version: 1.0 X-Bm-Milter-Handled: 55990f41-d878-4baa-be0a-ee34c49e34d2 X-Bm-Transport-Timestamp: 1768561681871 X-SPAM-LEVEL: Spam detection results: 0 AWL 0.058 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: [pve-devel] [PATCH pve-docs 1/1] sdn: vxlan: add short section about underlay address family X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Proxmox VE development discussion Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: pve-devel-bounces@lists.proxmox.com Sender: "pve-devel" Signed-off-by: Hannes Laimer --- vxlan-and-evpn.adoc | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/vxlan-and-evpn.adoc b/vxlan-and-evpn.adoc index 12bcea9..4349ba9 100644 --- a/vxlan-and-evpn.adoc +++ b/vxlan-and-evpn.adoc @@ -19,6 +19,14 @@ Each overlay network is known as a VXLAN Segment and identified by a unique VXLAN encapsulation add 50bytes overhead, so you need to increase mtu on your host physical interfaces to 1550 at minimum. (or decrease mtu inside your vms to 1450) +Underlay address family +^^^^^^^^^^^^^^^^^^^^^^^ + +VXLAN underlays are configured either IPv4-only or IPv6-only. Dual-stack +underlays are not supported; the peer list must be a single address family. +When using a fabric that provides both IPv4 and IPv6 node addresses, IPv6 is +preferred. + For BUM traffic (broadcast / unknown unicast traffic, multicast), we have 3 different VXLAN setup modes : multicast, unicast, bgp-evpn -- 2.47.3 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel