Juniper EVPN-VXLAN & DCI

Goal

In this tutorial we are going to setup 2 sites: Site A and site B and connect both sites together using a MPLS backbone. Both sites will be configured using EVPN-VXLAN centrally Routed Bridging (CRB).

Prerequisites

For this tutorial I will be using :

- EVE-NG 2.0.3-112

- VQFX model: vqfx-10000 running JUNOS 19.4R1.10 for spines and leaves

- VMX running Junos: 18.2R1.9 for the core routers

- Debian VM's servers

Diagram

Setup and configuration

Site A

network infor

Devices	Role	lo.0 IP	xe-0/0/0 IP	xe-0/0/1 IP	xe-0/0/2 IP	xe-0/0/9 IP	mgmt	AS	local-as
qfxssw27	spine1	10.179.0.1/32	172.16.1.49/30	172.16.2.2/30	172.16.3.1/30		10.193.0.78/24	64601	65030
qfxssw28	spine2	10.179.0.2/32	172.16.1.6/30	172.16.2.6/30	172.16.3.5/30		10.193.0.79/24	64601	65031
qfxlsw27	leaf1	10.179.0.5/32	172.16.1.50/30	172.16.1.5/30			10.193.0.80/24	64601	65032
qfxlsw28	leaf2	10.179.0.6/32	172.16.2.1/30	172.16.2.5/30			10.193.0.81/24	64601	65033
cr1	core router	10.179.0.7/32	172.16.3.2/30	172.16.3.6/30		172.16.4.0/31	10.193.0.86/24	100

vlan infor

vlan	vlan-id	vni	Network	irb IP	VG
private1-a-dal	2005	102005	10.192.64.0/22	10.192.64.2/22	10.192.64.1
private1-b-dal	2006	102006	10.192.80.0/22	10.192.80.2/22	10.192.80.1

Spine1 configuration

set system host-name qfxssw27-dfw
set interfaces xe-0/0/0 description link_leaf1
set interfaces xe-0/0/0 unit 0 family inet address 172.16.1.49/30
set interfaces xe-0/0/1 description link_leaf2
set interfaces xe-0/0/1 unit 0 family inet address 172.16.2.2/30
set interfaces xe-0/0/2 description link_cr1
set interfaces xe-0/0/2 unit 0 family inet address 172.16.3.1/30
set interfaces em0 unit 0 family inet address 10.193.0.78/24
set interfaces irb unit 2006 proxy-macip-advertisement
set interfaces irb unit 2006 virtual-gateway-accept-data
set interfaces irb unit 2006 family inet address 10.192.80.2/22 virtual-gateway-address 10.192.80.1
set interfaces irb unit 3502 proxy-macip-advertisement
set interfaces irb unit 3502 virtual-gateway-accept-data
set interfaces irb unit 3502 family inet address 10.192.64.2/22 virtual-gateway-address 10.192.64.1
set interfaces lo0 unit 0 family inet address 10.179.0.1/32 primary
set policy-options policy-statement EVPN-IMPORT term VNI102005 from community com2006
set policy-options policy-statement EVPN-IMPORT term VNI102005 then accept
set policy-options policy-statement EVPN-IMPORT2006 term 1 from community com2005
set policy-options policy-statement EVPN-IMPORT2006 term 1 then accept
set policy-options policy-statement PFE-ECMP then load-balance per-packet
set policy-options policy-statement export-dc-routes term fabric from protocol static
set policy-options policy-statement export-dc-routes term fabric from prefix-list-filter fab-lo0s exact
set policy-options policy-statement export-dc-routes term fabric then accept
set policy-options policy-statement export-dc-routes then reject
set policy-options policy-statement import-overlay term 1 from family evpn
set policy-options policy-statement import-overlay term 1 from next-hop 10.179.1.1
set policy-options policy-statement import-overlay term 1 from nlri-route-type 1
set policy-options policy-statement import-overlay term 1 from nlri-route-type 2
set policy-options policy-statement import-overlay term 1 then reject
set policy-options policy-statement import-overlay then accept
set policy-options policy-statement send-direct term send-lo0 from protocol direct
set policy-options policy-statement send-direct term send-lo0 from interface lo0.0
set policy-options policy-statement send-direct term send-lo0 then accept
set policy-options community com2005 members target:64601:2
set policy-options community com2006 members target:64601:3
set routing-instances vlan2005 routing-options auto-export
set routing-instances vlan2005 instance-type vrf
set routing-instances vlan2005 interface irb.3502
set routing-instances vlan2005 route-distinguisher 10.179.0.1:2
set routing-instances vlan2005 vrf-import EVPN-IMPORT
set routing-instances vlan2005 vrf-target target:64601:2
set routing-instances vlan2006 routing-options auto-export
set routing-instances vlan2006 instance-type vrf
set routing-instances vlan2006 interface irb.2006
set routing-instances vlan2006 route-distinguisher 10.179.0.1:3
set routing-instances vlan2006 vrf-import EVPN-IMPORT2006
set routing-instances vlan2006 vrf-target target:64601:3
set routing-options static route 0.0.0.0/0 next-hop 10.193.0.1
set routing-options static route 0.0.0.0/0 no-readvertise
set routing-options static route 10.179.0.0/24 discard
set routing-options forwarding-table export PFE-ECMP
set routing-options forwarding-table ecmp-fast-reroute
set routing-options router-id 10.179.0.1
set routing-options autonomous-system 64601
set protocols evpn vni-options vni 102005 vrf-target target:1:2005
set protocols evpn vni-options vni 102006 vrf-target target:1:2006
set protocols evpn encapsulation vxlan  
set protocols evpn multicast-mode ingress-replication
set protocols evpn default-gateway no-gateway-community
set protocols evpn extended-vni-list all
set protocols bgp group UNDERLAY type external
set protocols bgp group UNDERLAY mtu-discovery
set protocols bgp group UNDERLAY export send-direct
set protocols bgp group UNDERLAY local-as 65030
set protocols bgp group UNDERLAY multipath multiple-as
set protocols bgp group UNDERLAY bfd-liveness-detection minimum-interval 1000
set protocols bgp group UNDERLAY bfd-liveness-detection multiplier 3
set protocols bgp group UNDERLAY bfd-liveness-detection session-mode automatic
set protocols bgp group UNDERLAY neighbor 172.16.2.1 description leaf2
set protocols bgp group UNDERLAY neighbor 172.16.2.1 peer-as 65033
set protocols bgp group UNDERLAY neighbor 172.16.1.50 description leaf1
set protocols bgp group UNDERLAY neighbor 172.16.1.50 peer-as 65032
set protocols bgp group EVPN-IBGP type internal
set protocols bgp group EVPN-IBGP local-address 10.179.0.1
set protocols bgp group EVPN-IBGP import import-overlay
set protocols bgp group EVPN-IBGP family evpn signaling
set protocols bgp group EVPN-IBGP cluster 1.1.1.1
set protocols bgp group EVPN-IBGP multipath
set protocols bgp group EVPN-IBGP bfd-liveness-detection minimum-interval 350
set protocols bgp group EVPN-IBGP bfd-liveness-detection multiplier 3
set protocols bgp group EVPN-IBGP bfd-liveness-detection session-mode automatic
set protocols bgp group EVPN-IBGP neighbor 10.179.0.5 description lfsw01
set protocols bgp group EVPN-IBGP neighbor 10.179.0.6 description lfsw02
set protocols bgp group EVPN-IBGP neighbor 10.179.0.2 description spine2
set protocols bgp group EVPN-IBGP neighbor 10.179.1.1 description dc2_spine1
set protocols bgp group core type external
set protocols bgp group core export export-dc-routes
set protocols bgp group core peer-as 100
set protocols bgp group core local-as 65030
set protocols bgp group core neighbor 172.16.3.2
set protocols igmp-snooping vlan default
set switch-options vtep-source-interface lo0.0
set switch-options route-distinguisher 10.179.0.1:1
set switch-options vrf-target target:64512:1111
set vlans default vlan-id 1             
set vlans private1-a-dal vlan-id 2005   
set vlans private1-a-dal l3-interface irb.3502
set vlans private1-a-dal vxlan vni 102005
set vlans private1-b-dal vlan-id 2006   
set vlans private1-b-dal l3-interface irb.2006
set vlans private1-b-dal vxlan vni 102006