From 7f6624f5a6f8bd1749b54103ea5ec9f010adf778 Mon Sep 17 00:00:00 2001
From: Christian Breunig <christian@breunig.cc>
Date: Sat, 9 Sep 2023 07:13:31 +0200
Subject: vxlan: T3700: support VLAN tunnel mapping of VLAN aware bridges

FRR supports a new way of configuring VLAN-to-VNI mappings for EVPN-VXLAN, when
working with the Linux kernel. In this new way, the mapping of a VLAN to a VNI
is configured against a container VXLAN interface which is referred to as a
'Single VXLAN device (SVD)'.

Multiple VLAN to VNI mappings can be configured against the same SVD. This
allows for a significant scaling of the number of VNIs since a separate VXLAN
interface is no longer required for each VNI.

Sample configuration of SVD with VLAN to VNI mappings is shown below.

set interfaces bridge br0 member interface vxlan0
set interfaces vxlan vxlan0 external
set interfaces vxlan vxlan0 source-interface 'dum0'
set interfaces vxlan vxlan0 vlan-to-vni 10 vni '10010'
set interfaces vxlan vxlan0 vlan-to-vni 11 vni '10011'
set interfaces vxlan vxlan0 vlan-to-vni 30 vni '10030'
set interfaces vxlan vxlan0 vlan-to-vni 31 vni '10031'
---
 interface-definitions/interfaces-vxlan.xml.in | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'interface-definitions/interfaces-vxlan.xml.in')

diff --git a/interface-definitions/interfaces-vxlan.xml.in b/interface-definitions/interfaces-vxlan.xml.in
index fb60c93d0..b246d9a09 100644
--- a/interface-definitions/interfaces-vxlan.xml.in
+++ b/interface-definitions/interfaces-vxlan.xml.in
@@ -101,6 +101,22 @@
           #include <include/interface/redirect.xml.i>
           #include <include/interface/vrf.xml.i>
           #include <include/vni.xml.i>
+          <tagNode name="vlan-to-vni">
+            <properties>
+              <help>Configuring VLAN-to-VNI mappings for EVPN-VXLAN</help>
+              <valueHelp>
+                <format>u32:0-4094</format>
+                <description>Virtual Local Area Network (VLAN) ID</description>
+              </valueHelp>
+              <constraint>
+                <validator name="numeric" argument="--range 0-4094"/>
+              </constraint>
+              <constraintErrorMessage>VLAN ID must be between 0 and 4094</constraintErrorMessage>
+            </properties>
+            <children>
+              #include <include/vni.xml.i>
+            </children>
+            </tagNode>
         </children>
       </tagNode>
     </children>
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