Juniper EVPN-VXLAN configuration

Goal

In this tutorial we will setup a spine/leaf topology with 2 spines and 4 leaves. The goal is to configure EVPN-VXLAN

Prerequisites

For this tutorial I am using :

- EVE-NG 2.0.3-112

- VQFX model: vqfx-10000 running JUNOS 19.4R1.10

- spine1: ASN:65030

- spine2: ASN:65031

- leaf1: ASN:65032 in row A using 10.192.80.0/22 network

- leaf2: ASN:65033 in row B using 10.192.96.0/22 network

- leaf3: ASN:65034 in row C using 10.192.112.0/22 network

- leaf4: ASN:65035 in row D using 10.192.128.0/22 network

- 4 servers one in each row for testing communication

Diagram

Setup and Configuration

Spine1 configuation

##basic configuration 
set system host-name spine1
## Edit policy-options
set policy-options policy-statement export-lo term lo0 from protocol direct
set policy-options policy-statement export-lo term lo0 from route-filter 10.0.1.13/32 exact
set policy-options policy-statement export-lo term lo0 then accept
set policy-options policy-statement lbpp term lb then load-balance per-packet
## #Seting the underlay network###
set protocols bgp group underlay authentication-key password1
set protocols bgp group underlay export export-lo
set protocols bgp group underlay multipath multiple-as
set protocols bgp group underlay neighbor 172.16.1.2 peer-as 65032 description lsw1
set protocols bgp group underlay neighbor 172.16.1.10 peer-as 65033 description lsw2
set protocols bgp group underlay neighbor 172.16.1.18 peer-as 65034 description lsw3
set protocols bgp group underlay neighbor 172.16.1.26 peer-as 65035 description lsw4
##  edit routing-options 
set routing-options forwarding-table export lbpp
set routing-options router-id 10.0.1.13
set routing-options autonomous-system 65030
## Edit interface lo0
set interfaces lo0 unit 0 family inet address 10.0.1.13/32
## INTERFACE CONFIGUATION
delete interfaces xe-0/0/0 unit 0 family inet dhcp
delete interfaces xe-0/0/1 unit 0 family inet dhcp
delete interfaces xe-0/0/2 unit 0 family inet dhcp
delete interfaces xe-0/0/3 unit 0 family inet dhcp
set interfaces xe-0/0/0 unit 0 family inet address 172.16.1.1/30
set interfaces xe-0/0/0 description link_to_leaf1_xe-0/0/0
set interfaces xe-0/0/1 unit 0 family inet address 172.16.1.9/30
set interfaces xe-0/0/1 description link_to_leaf2_xe-0/0/0
set interfaces xe-0/0/2 unit 0 family inet address 172.16.1.17/30
set interfaces xe-0/0/2 description link_to_leaf3_xe-0/0/0
set interfaces xe-0/0/3 unit 0 family inet address 172.16.1.25/30
set interfaces xe-0/0/3 description link_to_asw-d1_xe-0/0/0

Spine2 configuation

## basic configuration 
set system host-name spine2
## Edit policy-options
set policy-options policy-statement export-lo term lo0 from protocol direct
set policy-options policy-statement export-lo term lo0 from route-filter 10.0.1.14/32 exact
set policy-options policy-statement export-lo term lo0 then accept
set policy-options policy-statement lbpp term lb then load-balance per-packet
## Seting the underlay network###
set protocols bgp group underlay authentication-key password1
set protocols bgp group underlay export export-lo
set protocols bgp group underlay multipath multiple-as
set protocols bgp group underlay neighbor 172.16.1.6 peer-as 65032 description lsw1
set protocols bgp group underlay neighbor 172.16.1.14 peer-as 65033 description lsw2
set protocols bgp group underlay neighbor 172.16.1.22 peer-as 65034 description lsw3
set protocols bgp group underlay neighbor 172.16.1.30 peer-as 65035 description lsw4
##  edit routing-options 
set routing-options forwarding-table export lbpp
set routing-options router-id 10.0.1.14
set routing-options autonomous-system 65031
## Edit interface lo0
set interfaces lo0 unit 0 family inet address 10.0.1.14/32
delete interfaces xe-0/0/0 unit 0 family inet dhcp
delete interfaces xe-0/0/1 unit 0 family inet dhcp
delete interfaces xe-0/0/2 unit 0 family inet dhcp
delete interfaces xe-0/0/3 unit 0 family inet dhcp
set interfaces xe-0/0/0 unit 0 family inet address 172.16.1.5/30
set interfaces xe-0/0/0 description link_to_leaf1_xe-0/0/1
set interfaces xe-0/0/1 unit 0 family inet address 172.16.1.13/30
set interfaces xe-0/0/1 description link_to_leaf2_xe-0/0/1
set interfaces xe-0/0/2 unit 0 family inet address 172.16.1.21/30
set interfaces xe-0/0/2 description link_to_leaf3_xe-0/0/1
set interfaces xe-0/0/3 unit 0 family inet address 172.16.1.29/30
set interfaces xe-0/0/3 description link_to_asw-d1_xe-0/0/1