EVPN Archives - Page 2 of 3

Arista – EVPN VPWS

27 November 202413 February 2026 nick Leave a comment

LDP is used for signalling and IS-IS for the IGP with P1 acting as a route reflector. 2 Cisco CE devices with OSPF configured on each.

https://www.arista.com/en/um-eos/eos-configuring-evpn#xx1117976

_Exports_eve-ng_export-20241127-105106 Download

PE1

service routing protocols model multi-agent

hostname pe1

interface Ethernet1
no switchport
ip address 1.1.1.1/30
isis enable 1

interface Ethernet2
no switchport
interface Ethernet2.909
encapsulation dot1q vlan 909

interface Loopback0
ip address 5.5.5.5/32
isis enable 1

ip routing

mpls ip

mpls ldp
no shutdown

patch panel
patch VPWS
connector 1 interface Ethernet2.909
connector 2 pseudowire bgp vpws PE2 pseudowire VPWS

router bgp 65400
router-id 5.5.5.5
neighbor 6.6.6.6 remote-as 65400
neighbor 6.6.6.6 update-source Loopback0
neighbor 6.6.6.6 send-community

vpws PE2
rd 5.5.5.5:909
route-target import export evpn 65400:909
mpls control-word

pseudowire VPWS
evpn vpws id local 909 remote 910

address-family evpn
neighbor default encapsulation mpls next-hop-self source-interface Loopback0
neighbor 6.6.6.6 activate

router isis 1
net 49.0000.5555.5555.5555.00
is-type level-2
address-family ipv4 unicast

service routing protocols model multi-agent

hostname p1

interface Ethernet1
no switchport
ip address 1.1.1.2/30
isis enable 1

interface Ethernet2
no switchport
ip address 2.2.2.1/30
isis enable 1

interface Loopback0
ip address 6.6.6.6/32
isis enable 1

ip routing

mpls ip

mpls ldp
no shutdown

router bgp 65400
router-id 6.6.6.6
neighbor 5.5.5.5 remote-as 65400
neighbor 5.5.5.5 update-source Loopback0
neighbor 5.5.5.5 route-reflector-client
neighbor 5.5.5.5 send-community
neighbor 7.7.7.7 remote-as 65400
neighbor 7.7.7.7 update-source Loopback0
neighbor 7.7.7.7 route-reflector-client
neighbor 7.7.7.7 send-community

address-family evpn
neighbor default encapsulation mpls next-hop-self source-interface Loopback0
neighbor 5.5.5.5 activate
neighbor 7.7.7.7 activate

router isis 1
net 49.0000.6666.6666.6666.00
is-type level-2
address-family ipv4 unicast

PE2

service routing protocols model multi-agent

hostname pe2

interface Ethernet1
no switchport
ip address 2.2.2.2/30
isis enable 1

interface Ethernet2
no switchport
interface Ethernet2.909
encapsulation dot1q vlan 909

interface Loopback0
ip address 7.7.7.7/32
isis enable 1

ip routing

mpls ip

mpls ldp
no shutdown

patch panel
patch VPWS
connector 1 interface Ethernet2.909
connector 2 pseudowire bgp vpws PE2 pseudowire VPWS

router bgp 65400
neighbor 6.6.6.6 remote-as 65400
neighbor 6.6.6.6 update-source Loopback0
neighbor 6.6.6.6 send-community

vpws PE2
rd 7.7.7.7:909
route-target import export evpn 65400:909
mpls control-word

pseudowire VPWS
evpn vpws id local 910 remote 909

address-family evpn
neighbor default encapsulation mpls next-hop-self source-interface Loopback0
neighbor 6.6.6.6 activate

router isis 1
net 49.0000.7777.7777.7777.00
is-type level-2
address-family ipv4 unicast

OSPF is now up on the 2 Cisco CE devices, confirming layer 2 connectivity.

Juniper vMX – Carrier of Carriers EVPN VPLS

9 November 202413 February 2026 nick Leave a comment

This lab is slightly different to the other Carrier of Carrier lab where LDP was used in each AS. In this lab, AS65200 is using LDP, AS65400 RSVP & AS65600 Segment Routing. 2 Cisco vIOS devices used as CE devices

https://www.juniper.net/documentation/us/en/software/junos/vpn-l3/topics/topic-map/l3-vpns-carrier-carrier.html

_Exports_eve-ng_export-20241109-101638 Download

PE1

set interfaces ge-0/0/0 vlan-tagging
set interfaces ge-0/0/0 encapsulation vlan-vpls
set interfaces ge-0/0/0 unit 909 encapsulation vlan-vpls
set interfaces ge-0/0/0 unit 909 vlan-id 909
set interfaces ge-0/0/0 unit 909 family vpls
set interfaces ge-0/0/2 unit 0 family inet address 1.1.1.1/30
set interfaces ge-0/0/2 unit 0 family iso
set interfaces ge-0/0/2 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 5.5.5.5/32
set interfaces lo0 unit 0 family iso address 49.0000.5555.5555.5555.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 5.5.5.5
set routing-options autonomous-system 65200
set protocols mpls interface ge-0/0/2.0
set protocols mpls interface lo0.0
set protocols bgp group AS65600 type external
set protocols bgp group AS65600 multihop
set protocols bgp group AS65600 local-address 5.5.5.5
set protocols bgp group AS65600 family evpn signaling
set protocols bgp group AS65600 peer-as 65600
set protocols bgp group AS65600 neighbor 11.11.11.11
set protocols bgp group INTERNAL type internal
set protocols bgp group INTERNAL local-address 5.5.5.5
set protocols bgp group INTERNAL family inet labeled-unicast resolve-vpn
set protocols bgp group INTERNAL neighbor 6.6.6.6
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols isis interface ge-0/0/2.0 point-to-point
set protocols isis interface lo0.0 passive
set protocols ldp interface ge-0/0/2.0
set protocols ldp interface lo0.0
set routing-instances vpls instance-type evpn
set routing-instances vpls interface ge-0/0/0.909
set routing-instances vpls route-distinguisher 5.5.5.5:909
set routing-instances vpls vrf-target target:65200:909
set routing-instances vpls protocols vpls site-range 1000
set routing-instances vpls protocols vpls no-tunnel-services
set routing-instances vpls protocols vpls site vpls-1 site-identifier 1
set routing-instances vpls protocols vpls site vpls-1 interface ge-0/0/0.909
set routing-instances vpls protocols evpn interface ge-0/0/0.909

ASBR1

set interfaces ge-0/0/0 unit 0 family inet address 1.1.1.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 2.2.2.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 6.6.6.6/32
set interfaces lo0 unit 0 family iso address 49.0000.6666.6666.6666.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 6.6.6.6
set routing-options autonomous-system 65200
set protocols mpls interface ge-0/0/0.0
set protocols mpls interface lo0.0
set protocols bgp group INTERNAL type internal
set protocols bgp group INTERNAL local-address 6.6.6.6
set protocols bgp group INTERNAL family inet labeled-unicast
set protocols bgp group INTERNAL neighbor 5.5.5.5
set protocols bgp group AS65400 type external
set protocols bgp group AS65400 family inet labeled-unicast
set protocols bgp group AS65400 export PE1_LOOPBACK
set protocols bgp group AS65400 peer-as 65400
set protocols bgp group AS65400 neighbor 2.2.2.2
set protocols isis interface ge-0/0/0.0 point-to-point
set protocols isis interface lo0.0 passive
set protocols ldp interface ge-0/0/0.0
set protocols ldp interface lo0.0
set policy-options policy-statement PE1_LOOPBACK from route-filter 5.5.5.5/32 exact
set policy-options policy-statement PE1_LOOPBACK then accept

CoC ASBR1

set interfaces ge-0/0/0 unit 0 family inet address 2.2.2.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 3.3.3.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 7.7.7.7/32
set interfaces lo0 unit 0 family iso address 49.0000.7777.7777.0000.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 7.7.7.7
set routing-options autonomous-system 65400
set protocols rsvp interface ge-0/0/1.0
set protocols rsvp interface lo0.0
set protocols mpls label-switched-path ASBR2 to 9.9.9.9
set protocols mpls interface ge-0/0/1.0
set protocols mpls interface lo0.0
set protocols bgp group AS65200 type external
set protocols bgp group AS65200 family inet labeled-unicast
set protocols bgp group AS65200 peer-as 65200
set protocols bgp group AS65200 neighbor 2.2.2.1
set protocols bgp group INTERNAL type internal
set protocols bgp group INTERNAL local-address 7.7.7.7
set protocols bgp group INTERNAL family inet labeled-unicast
set protocols bgp group INTERNAL neighbor 8.8.8.8
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols isis interface ge-0/0/1.0 point-to-point
set protocols isis interface lo0.0 passive

CoC Core

set interfaces ge-0/0/0 unit 0 family inet address 3.3.3.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 4.4.4.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 8.8.8.8/32
set interfaces lo0 unit 0 family iso address 49.0000.8888.8888.0000.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 8.8.8.8
set routing-options autonomous-system 65400
set protocols rsvp interface ge-0/0/0.0
set protocols rsvp interface ge-0/0/1.0
set protocols rsvp interface lo0.0
set protocols mpls interface ge-0/0/0.0
set protocols mpls interface ge-0/0/1.0
set protocols mpls interface lo0.0
set protocols bgp group INTERNAL type internal
set protocols bgp group INTERNAL local-address 8.8.8.8
set protocols bgp group INTERNAL family inet labeled-unicast
set protocols bgp group INTERNAL cluster 8.8.8.8
set protocols bgp group INTERNAL neighbor 9.9.9.9
set protocols bgp group INTERNAL neighbor 7.7.7.7
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols isis interface ge-0/0/0.0 point-to-point
set protocols isis interface ge-0/0/1.0 point-to-point
set protocols isis interface lo0.0 passive

CoC ASBR2

set interfaces ge-0/0/0 unit 0 family inet address 4.4.4.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 5.5.5.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 9.9.9.9/32
set interfaces lo0 unit 0 family iso address 49.0000.9999.9999.0000.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 9.9.9.9
set routing-options autonomous-system 65400
set protocols rsvp interface ge-0/0/0.0
set protocols rsvp interface lo0.0
set protocols mpls label-switched-path ASBR1 to 7.7.7.7
set protocols mpls interface ge-0/0/0.0
set protocols bgp group INTERNAL type internal
set protocols bgp group INTERNAL local-address 9.9.9.9
set protocols bgp group INTERNAL family inet labeled-unicast
set protocols bgp group INTERNAL neighbor 8.8.8.8
set protocols bgp group AS65600 type external
set protocols bgp group AS65600 family inet labeled-unicast
set protocols bgp group AS65600 peer-as 65600
set protocols bgp group AS65600 neighbor 5.5.5.2
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols isis interface ge-0/0/0.0 point-to-point
set protocols isis interface lo0.0 passive

ASBR2

set chassis network-services enhanced-ip
set interfaces ge-0/0/0 unit 0 family inet address 5.5.5.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 6.6.6.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 10.10.10.10/32
set interfaces lo0 unit 0 family iso address 49.0000.1010.1010.0000.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 10.10.10.10
set routing-options autonomous-system 65600
set protocols mpls interface ge-0/0/1.0
set protocols mpls interface lo0.0
set protocols bgp group INTERNAL type internal
set protocols bgp group INTERNAL local-address 10.10.10.10
set protocols bgp group INTERNAL family inet labeled-unicast
set protocols bgp group INTERNAL neighbor 11.11.11.11
set protocols bgp group AS65400 type external
set protocols bgp group AS65400 family inet labeled-unicast
set protocols bgp group AS65400 export PE2_LOOPBACK
set protocols bgp group AS65400 peer-as 65400
set protocols bgp group AS65400 neighbor 5.5.5.1
set protocols isis source-packet-routing srgb start-label 55000
set protocols isis source-packet-routing srgb index-range 10000
set protocols isis source-packet-routing node-segment ipv4-index 1000
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols isis interface ge-0/0/1.0 point-to-point
set protocols isis interface lo0.0 passive
set policy-options policy-statement PE2_LOOPBACK from route-filter 11.11.11.11/32 exact
set policy-options policy-statement PE2_LOOPBACK then accept

PE2

set chassis network-services enhanced-ip
set interfaces ge-0/0/0 unit 0 family inet address 6.6.6.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 vlan-tagging
set interfaces ge-0/0/1 encapsulation vlan-vpls
set interfaces ge-0/0/1 unit 909 encapsulation vlan-vpls
set interfaces ge-0/0/1 unit 909 vlan-id 909
set interfaces ge-0/0/1 unit 909 family vpls
set interfaces lo0 unit 0 family inet address 11.11.11.11/32
set interfaces lo0 unit 0 family iso address 49.0000.1111.1111.0000.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 11.11.11.11
set routing-options autonomous-system 65600
set protocols mpls interface ge-0/0/0.0
set protocols mpls interface lo0.0
set protocols bgp group INTERNAL type internal
set protocols bgp group INTERNAL local-address 11.11.11.11
set protocols bgp group INTERNAL family inet labeled-unicast resolve-vpn
set protocols bgp group INTERNAL neighbor 10.10.10.10
set protocols bgp group AS65200 multihop
set protocols bgp group AS65200 local-address 11.11.11.11
set protocols bgp group AS65200 family evpn signaling
set protocols bgp group AS65200 peer-as 65200
set protocols bgp group AS65200 neighbor 5.5.5.5
set protocols isis source-packet-routing srgb start-label 55000
set protocols isis source-packet-routing srgb index-range 10000
set protocols isis source-packet-routing node-segment ipv4-index 1100
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols isis interface ge-0/0/0.0 point-to-point
set protocols isis interface lo0.0 passive
set routing-instances vpls instance-type evpn
set routing-instances vpls interface ge-0/0/1.909
set routing-instances vpls route-distinguisher 11.11.11.11:909
set routing-instances vpls vrf-target target:65200:909
set routing-instances vpls protocols vpls site-range 1000
set routing-instances vpls protocols vpls no-tunnel-services
set routing-instances vpls protocols vpls site vpls-1 site-identifier 1
set routing-instances vpls protocols vpls site vpls-1 interface ge-0/0/1.909
set routing-instances vpls protocols evpn interface ge-0/0/1.909

The VPLS circuit will now be up and OSPF has been configured to the 2 Cisco CE devices to confirm this.

Juniper vMX – RSVP EVPN VPLS

2 June 202413 February 2026 nick Leave a comment

A change with this lab as RSVP will be used as the MPLS signalling protocol. IS-IS for the IGP and Cisco vIOS again used as the CE devices

https://community.juniper.net/blogs/ramdas-machat/2022/11/01/vpls-to-evpn-vpls-seamless-migration-on-mx-routers

Exports_eve-ng_export-20240602-184139 Download

PE1

set interfaces ge-0/0/0 vlan-tagging
set interfaces ge-0/0/0 encapsulation vlan-vpls
set interfaces ge-0/0/0 unit 3333 encapsulation vlan-vpls
set interfaces ge-0/0/0 unit 3333 vlan-id 3333
set interfaces ge-0/0/0 unit 3333 family vpls
set interfaces ge-0/0/2 unit 0 family inet address 1.1.1.1/30
set interfaces ge-0/0/2 unit 0 family iso
set interfaces ge-0/0/2 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 5.5.5.5/32
set interfaces lo0 unit 0 family iso address 49.0000.5555.5555.5555.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 5.5.5.5
set routing-options autonomous-system 65400
set protocols rsvp interface all
set protocols mpls label-switched-path TO_PE2 to 8.8.8.8
set protocols mpls interface all
set protocols bgp group internal type internal
set protocols bgp group internal local-address 5.5.5.5
set protocols bgp group internal family l2vpn signaling
set protocols bgp group internal family evpn signaling
set protocols bgp group internal neighbor 8.8.8.8
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols isis interface ge-0/0/2.0
set protocols isis interface lo0.0
set routing-instances vpls instance-type evpn
set routing-instances vpls interface ge-0/0/0.3333
set routing-instances vpls route-distinguisher 5.5.5.5:1
set routing-instances vpls vrf-target target:65530:1
set routing-instances vpls protocols vpls site-range 1000
set routing-instances vpls protocols vpls no-tunnel-services
set routing-instances vpls protocols vpls site vpls-1 site-identifier 1
set routing-instances vpls protocols vpls site vpls-1 interface ge-0/0/0.3333
set routing-instances vpls protocols evpn interface ge-0/0/0.3333

set interfaces ge-0/0/0 unit 0 family inet address 1.1.1.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 2.2.2.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 6.6.6.6/32
set interfaces lo0 unit 0 family iso address 49.0000.6666.6666.6666.00
set interfaces lo0 unit 0 family mpls
set protocols rsvp interface all
set protocols mpls interface all
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols isis interface ge-0/0/0.0
set protocols isis interface ge-0/0/1.0
set protocols isis interface lo0.0

set interfaces ge-0/0/0 unit 0 family inet address 2.2.2.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 3.3.3.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 33.33.33.33/32
set interfaces lo0 unit 0 family iso address 49.0000.3333.3333.0000.00
set interfaces lo0 unit 0 family mpls
set protocols rsvp interface all
set protocols mpls interface all
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols isis interface ge-0/0/0.0
set protocols isis interface ge-0/0/1.0
set protocols isis interface lo0.0

set interfaces ge-0/0/0 unit 0 family inet address 3.3.3.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 4.4.4.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 7.7.7.7/32
set interfaces lo0 unit 0 family iso address 49.0000.7777.7777.7777.00
set interfaces lo0 unit 0 family mpls
set protocols rsvp interface all
set protocols mpls interface all
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols isis interface ge-0/0/0.0
set protocols isis interface ge-0/0/1.0
set protocols isis interface lo0.0

PE2

set interfaces ge-0/0/0 vlan-tagging
set interfaces ge-0/0/0 encapsulation vlan-vpls
set interfaces ge-0/0/0 unit 3333 encapsulation vlan-vpls
set interfaces ge-0/0/0 unit 3333 vlan-id 3333
set interfaces ge-0/0/0 unit 3333 family vpls
set interfaces ge-0/0/2 unit 0 family inet address 4.4.4.2/30
set interfaces ge-0/0/2 unit 0 family iso
set interfaces ge-0/0/2 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 8.8.8.8/32
set interfaces lo0 unit 0 family iso address 49.0000.8888.8888.8888.00
set interfaces lo0 unit 0 family mpls
set routing-options autonomous-system 65400
set protocols rsvp interface all
set protocols mpls label-switched-path TO_PE1 to 5.5.5.5
set protocols mpls interface all
set protocols bgp group internal type internal
set protocols bgp group internal local-address 8.8.8.8
set protocols bgp group internal family l2vpn signaling
set protocols bgp group internal family evpn signaling
set protocols bgp group internal neighbor 5.5.5.5
set protocols isis level 1 disable
set protocols isis interface ge-0/0/2.0
set protocols isis interface lo0.0
set routing-instances vpls instance-type evpn
set routing-instances vpls interface ge-0/0/0.3333
set routing-instances vpls route-distinguisher 8.8.8.8:1
set routing-instances vpls vrf-target target:65530:1
set routing-instances vpls protocols vpls site-range 1000
set routing-instances vpls protocols vpls no-tunnel-services
set routing-instances vpls protocols vpls site vpls-2 site-identifier 2
set routing-instances vpls protocols vpls site vpls-2 interface ge-0/0/0.3333
set routing-instances vpls protocols evpn interface ge-0/0/0.3333

The VPLS circuit will now be up.

OSPF has been configured to the Cisco devices but you could chose another protocol if you prefer.

Juniper vMX – EVPN VPWS

6 May 202413 February 2026 nick Leave a comment

Cisco vIOS switches used as the CE devices and a LAG between them and the PE vMX’s. IS-IS for the underlay and LDP for the label distribution. You could use RSVP or Segment Routing if you prefer.

https://www.juniper.net/documentation/us/en/software/junos/evpn-vxlan/topics/example/example-configuring-vpws-service-with-evpn-signaling-mechanisms.html

Exports_eve-ng_export-20240506-101311 Download

PE1

set chassis aggregated-devices ethernet device-count 1
set interfaces ge-0/0/0 gigether-options 802.3ad ae0
set interfaces ge-0/0/1 gigether-options 802.3ad ae0
set interfaces ge-0/0/2 unit 0 family inet address 1.1.1.1/30
set interfaces ge-0/0/2 unit 0 family iso
set interfaces ge-0/0/2 unit 0 family mpls
set interfaces ae0 flexible-vlan-tagging
set interfaces ae0 encapsulation flexible-ethernet-services
set interfaces ae0 aggregated-ether-options lacp active
set interfaces ae0 unit 444 encapsulation vlan-ccc
set interfaces ae0 unit 444 vlan-id 444
set interfaces lo0 unit 0 family inet address 5.5.5.5/32
set interfaces lo0 unit 0 family iso address 49.0000.5555.5555.5555.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 5.5.5.5
set routing-options autonomous-system 65400
set protocols mpls interface all
set protocols bgp group internal type internal
set protocols bgp group internal local-address 5.5.5.5
set protocols bgp group internal family evpn signaling
set protocols bgp group internal neighbor 8.8.8.8
set protocols isis level 1 disable
set protocols isis interface ge-0/0/0.0
set protocols isis interface ge-0/0/2.0
set protocols isis interface lo0.0
set protocols ldp interface all
set routing-instances customer1 instance-type evpn-vpws
set routing-instances customer1 interface ae0.444
set routing-instances customer1 route-distinguisher 5.5.5.5:1
set routing-instances customer1 vrf-target target:65400:1
set routing-instances customer1 protocols evpn interface ae0.444 vpws-service-id local 22
set routing-instances customer1 protocols evpn interface ae0.444 vpws-service-id remote 44

set interfaces ge-0/0/0 unit 0 family inet address 1.1.1.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 2.2.2.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 6.6.6.6/32
set interfaces lo0 unit 0 family iso address 49.0000.6666.6666.6666.00
set interfaces lo0 unit 0 family mpls
set protocols mpls interface all
set protocols isis interface ge-0/0/0.0
set protocols isis interface ge-0/0/1.0
set protocols isis interface lo0.0
set protocols ldp interface all

set interfaces ge-0/0/0 unit 0 family inet address 2.2.2.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 3.3.3.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 33.33.33.33/32
set interfaces lo0 unit 0 family iso address 49.0000.3333.3333.0000.00
set interfaces lo0 unit 0 family mpls
set protocols mpls interface all
set protocols isis interface ge-0/0/0.0
set protocols isis interface ge-0/0/1.0
set protocols isis interface lo0.0
set protocols ldp interface all

set interfaces ge-0/0/0 unit 0 family inet address 3.3.3.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 4.4.4.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 7.7.7.7/32
set interfaces lo0 unit 0 family iso address 49.0000.7777.7777.7777.00
set interfaces lo0 unit 0 family mpls
set protocols mpls interface all
set protocols isis interface ge-0/0/0.0
set protocols isis interface ge-0/0/1.0
set protocols isis interface lo0.0
set protocols ldp interface all

PE2

set chassis aggregated-devices ethernet device-count 1
set interfaces ge-0/0/0 gigether-options 802.3ad ae0
set interfaces ge-0/0/1 gigether-options 802.3ad ae0
set interfaces ge-0/0/2 unit 0 family inet address 4.4.4.2/30
set interfaces ge-0/0/2 unit 0 family iso
set interfaces ge-0/0/2 unit 0 family mpls
set interfaces ae0 flexible-vlan-tagging
set interfaces ae0 encapsulation flexible-ethernet-services
set interfaces ae0 aggregated-ether-options lacp active
set interfaces ae0 unit 444 encapsulation vlan-ccc
set interfaces ae0 unit 444 vlan-id 444
set interfaces lo0 unit 0 family inet address 8.8.8.8/32
set interfaces lo0 unit 0 family iso address 49.0000.8888.8888.8888.00
set interfaces lo0 unit 0 family mpls
set routing-options autonomous-system 65400
set protocols mpls interface all
set protocols bgp group internal type internal
set protocols bgp group internal local-address 8.8.8.8
set protocols bgp group internal family evpn signaling
set protocols bgp group internal neighbor 5.5.5.5
set protocols isis level 1 disable
set protocols isis interface ge-0/0/2.0
set protocols isis interface lo0.0
set protocols ldp interface all
set routing-instances customer1 instance-type evpn-vpws
set routing-instances customer1 interface ae0.444
set routing-instances customer1 route-distinguisher 8.8.8.8:1
set routing-instances customer1 vrf-target target:65400:1
set routing-instances customer1 protocols evpn interface ae0.444 vpws-service-id local 44
set routing-instances customer1 protocols evpn interface ae0.444 vpws-service-id remote 22

VPWS instance will now be up. OSPF has been configured on both CE devices and relatiionship is up

Cisco IOS XE – MPLS EVPN

21 April 202413 February 2026 nick Leave a comment

IS-IS is used for the underlay. The 2 CEs are Cisco vIOS switches with VLAN 2222 and OSPF configured on them.

https://www.cisco.com/c/en/us/td/docs/routers/ios/config/17-x/mpls/b-mpls/m-evpn-over-mpls.html

Exports_eve-ng_export-20240421-092529 Download

PE1

hostname pe1
  
mpls label protocol ldp
l2vpn evpn
replication-type ingress
mpls label mode per-ce
router-id Loopback0

l2vpn evpn instance 1 vlan-based
route-target export 65200:1
route-target import 65200:1
no auto-route-target

bridge-domain 1
member GigabitEthernet2 service-instance 1
member evpn-instance 1
  
interface Loopback0
ip address 5.5.5.5 255.255.255.255
ip router isis 1

interface GigabitEthernet1
ip address 1.1.1.1 255.255.255.252
ip router isis 1
mpls ip

interface GigabitEthernet2
no ip address
service instance 1 ethernet
encapsulation dot1q 2222
  
router isis 1
net 49.0000.5555.5555.5555.00

router bgp 65200
bgp router-id 5.5.5.5
bgp log-neighbor-changes
neighbor 9.9.9.9 remote-as 65200
neighbor 9.9.9.9 update-source Loopback0

address-family ipv4
neighbor 9.9.9.9 activate
exit-address-family

address-family l2vpn evpn
neighbor 9.9.9.9 activate
neighbor 9.9.9.9 send-community both
exit-address-family

hostname p1

mpls label protocol ldp
  
interface Loopback0
ip address 6.6.6.6 255.255.255.255
ip router isis 1

interface GigabitEthernet1
ip address 1.1.1.2 255.255.255.252
ip router isis 1
mpls ip

interface GigabitEthernet2
ip address 2.2.2.1 255.255.255.252
ip router isis 1
mpls ip

router isis 1
net 49.0000.6666.6666.6666.00

hostname p2

mpls label protocol ldp
  
interface Loopback0
ip address 7.7.7.7 255.255.255.255
ip router isis 1

interface GigabitEthernet1
ip address 2.2.2.2 255.255.255.252
ip router isis 1
mpls ip

interface GigabitEthernet2
ip address 3.3.3.1 255.255.255.252
ip router isis 1
mpls ip

router isis 1
net 49.0000.7777.7777.7777.00

hostname p3

mpls label protocol ldp
  
interface Loopback0
ip address 8.8.8.8 255.255.255.255
ip router isis 1

interface GigabitEthernet1
ip address 3.3.3.2 255.255.255.252
ip router isis 1
mpls ip

interface GigabitEthernet2
ip address 4.4.4.1 255.255.255.252
ip router isis 1
mpls ip

router isis 1
net 49.0000.8888.8888.8888.00

PE2

hostname pe2
  
mpls label protocol ldp

l2vpn evpn
replication-type ingress
mpls label mode per-ce
router-id Loopback0

l2vpn evpn instance 1 vlan-based
route-target export 65200:1
route-target import 65200:1
no auto-route-target

bridge-domain 1
member GigabitEthernet2 service-instance 1
member evpn-instance 1
  
interface Loopback0
ip address 9.9.9.9 255.255.255.255
ip router isis 1

interface GigabitEthernet1
ip address 4.4.4.2 255.255.255.252
ip router isis 1
mpls ip

interface GigabitEthernet2
no ip address
service instance 1 ethernet
encapsulation dot1q 2222
  
router isis 1
net 49.0000.9999.9999.9999.00

router bgp 65200
bgp router-id 9.9.9.9
bgp log-neighbor-changes
neighbor 5.5.5.5 remote-as 65200
neighbor 5.5.5.5 update-source Loopback0

address-family ipv4
neighbor 5.5.5.5 activate
exit-address-family

address-family l2vpn evpn
neighbor 5.5.5.5 activate
neighbor 5.5.5.5 send-community both
exit-address-family

OSPF will now be up between the 2 CEs and MAC addresses being learnt on the 2 PE devices.

Arista – Segment Routing MPLS EVPN

7 April 202413 February 2026 nick Leave a comment

IS-IS used for the segment routing. 2 Cisco vIOS devices for the CE’s, with OSPF configured on each

https://www.arista.com/en/solutions/mpls-segment-routing

Exports_eve-ng_export-20240407-091304 Download

PE1

service routing protocols model multi-agent

hostname pe1
  
vlan 3333

interface Ethernet1
switchport trunk allowed vlan 3333
switchport mode trunk

interface Ethernet2
no switchport
ip address 1.1.1.1/30
isis enable 1

interface Loopback0
ip address 5.5.5.5/32
node-segment ipv4 index 10
isis enable 1
  
ip routing

mpls ip

router bgp 65400
router-id 5.5.5.5
neighbor 9.9.9.9 remote-as 65400
neighbor 9.9.9.9 update-source Loopback0
neighbor 9.9.9.9 rib-in pre-policy retain all
neighbor 9.9.9.9 send-community extended

vlan-aware-bundle customer1
rd 5.5.5.5:1
route-target both 65400:1
redistribute learned
vlan 3333

address-family evpn
neighbor default encapsulation mpls next-hop-self source-interface Loopback0
neighbor 9.9.9.9 activate

router isis 1
net 49.0000.5555.5555.5555.00
is-type level-2
segment-routing mpls
no shutdown
address-family ipv4 unicast

service routing protocols model multi-agent

hostname p1
  
interface Ethernet1
no switchport
ip address 1.1.1.2/30
isis enable 1

interface Ethernet2
no switchport
ip address 2.2.2.1/30
isis enable 1

interface Loopback0
ip address 6.6.6.6/32
node-segment ipv4 index 20
isis enable 1
  
ip routing

mpls ip

router isis 1
net 49.0000.6666.6666.6666.00
is-type level-2
segment-routing mpls
no shutdown
address-family ipv4 unicast

service routing protocols model multi-agent

hostname p2
  
interface Ethernet1
no switchport
ip address 2.2.2.2/30
isis enable 1

interface Ethernet2
no switchport
ip address 3.3.3.1/30
isis enable 1

interface Loopback0
ip address 7.7.7.7/32
node-segment ipv4 index 30
isis enable 1
  
ip routing

mpls ip

router isis 1
net 49.0000.7777.7777.7777.00
is-type level-2
segment-routing mpls
no shutdown
address-family ipv4 unicast

service routing protocols model multi-agent

hostname p3
  
interface Ethernet1
no switchport
ip address 3.3.3.2/30
isis enable 1
  
interface Ethernet2
no switchport
ip address 4.4.4.1/30
isis enable 1

interface Loopback0
ip address 8.8.8.8/32
node-segment ipv4 index 40
isis enable 1

ip routing

mpls ip

router isis 1
net 49.0000.8888.8888.8888.00
is-type level-2
segment-routing mpls
no shutdown
address-family ipv4 unicast

PE2

service routing protocols model multi-agent

hostname pe2
  
vlan 3333

interface Ethernet1
switchport trunk allowed vlan 3333
switchport mode trunk

interface Ethernet2
no switchport
ip address 4.4.4.2/30
isis enable 1

interface Loopback0
ip address 9.9.9.9/32
node-segment ipv4 index 50
isis enable 1
  
ip routing

mpls ip

router bgp 65400
router-id 9.9.9.9
neighbor 5.5.5.5 remote-as 65400
neighbor 5.5.5.5 update-source Loopback0
neighbor 5.5.5.5 rib-in pre-policy retain all
neighbor 5.5.5.5 send-community extended

vlan-aware-bundle customer1
rd 9.9.9.9:1
route-target both 65400:1
redistribute learned
vlan 3333

address-family evpn
neighbor default encapsulation mpls next-hop-self source-interface Loopback0
neighbor 5.5.5.5 activate

router isis 1
net 49.0000.9999.9999.9999.00
is-type level-2
segment-routing mpls
no shutdown
address-family ipv4 unicast

OSPF should now be up between the 2 CE devices.

Juniper Inter-AS MPLS EVPN Option C

3 March 202413 February 2026 nick Leave a comment

This topology is Option C utilising BGP-LU. IS-IS in the underlay and OSPF between the 2 CE Cisco devices. Can use other devices as CE’s if you prefer.

https://www.juniper.net/documentation/en_US/release-independent/nce/topics/example/mpls-vpn-option3-configuration.html

Exports_eve-ng_export-20240303-124143 Download

PE1

set interfaces ge-0/0/0 flexible-vlan-tagging
set interfaces ge-0/0/0 encapsulation flexible-ethernet-services
set interfaces ge-0/0/0 unit 674 encapsulation vlan-bridge
set interfaces ge-0/0/0 unit 674 vlan-id 674
set interfaces ge-0/0/0 unit 674 family bridge
set interfaces ge-0/0/2 unit 0 family inet address 1.1.1.1/30
set interfaces ge-0/0/2 unit 0 family iso
set interfaces ge-0/0/2 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 5.5.5.5/32
set interfaces lo0 unit 0 family iso address 49.0000.5555.5555.5555.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 5.5.5.5
set routing-options autonomous-system 65200
set protocols mpls interface all
set protocols bgp group int type internal
set protocols bgp group int local-address 5.5.5.5
set protocols bgp group int family inet unicast
set protocols bgp group int family inet-vpn unicast
set protocols bgp group int family evpn signaling
set protocols bgp group int export nhs
set protocols bgp group int neighbor 6.6.6.6
set protocols bgp group int neighbor 33.33.33.33 local-address 5.5.5.5
set protocols bgp group int neighbor 33.33.33.33 family inet labeled-unicast resolve-vpn
set protocols bgp group external type external
set protocols bgp group external multihop
set protocols bgp group external local-address 5.5.5.5
set protocols bgp group external family evpn signaling
set protocols bgp group external peer-as 65400
set protocols bgp group external neighbor 8.8.8.8
set protocols isis interface ge-0/0/2.0
set protocols isis interface lo0.0
set protocols ldp interface all
set policy-options policy-statement nhs term 1 from protocol bgp
set policy-options policy-statement nhs term 1 then next-hop self
set routing-instances cust1 instance-type evpn
set routing-instances cust1 vlan-id 674
set routing-instances cust1 interface ge-0/0/0.674
set routing-instances cust1 route-distinguisher 5.5.5.5:1
set routing-instances cust1 vrf-target target:65200:1
set routing-instances cust1 protocols evpn interface ge-0/0/0.674

set interfaces ge-0/0/0 unit 0 family inet address 1.1.1.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 2.2.2.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 6.6.6.6/32
set interfaces lo0 unit 0 family iso address 49.0000.6666.6666.6666.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 6.6.6.6
set routing-options autonomous-system 65200
set protocols mpls interface all
set protocols bgp group int type internal
set protocols bgp group int local-address 6.6.6.6
set protocols bgp group int family inet unicast
set protocols bgp group int family inet-vpn unicast
set protocols bgp group int family evpn signaling
set protocols bgp group int export nhs
set protocols bgp group int cluster 6.6.6.6
set protocols bgp group int neighbor 5.5.5.5
set protocols bgp group int neighbor 33.33.33.33
set protocols isis interface ge-0/0/0.0
set protocols isis interface ge-0/0/1.0
set protocols isis interface lo0.0
set protocols ldp interface all
set policy-options policy-statement nhs term 1 from protocol bgp
set policy-options policy-statement nhs term 1 then next-hop self

ASBR1

set interfaces ge-0/0/0 unit 0 family inet address 2.2.2.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 3.3.3.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 33.33.33.33/32
set interfaces lo0 unit 0 family iso address 49.0000.3333.3333.0000.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 33.33.33.33
set routing-options autonomous-system 65200
set protocols mpls traffic-engineering mpls-forwarding
set protocols mpls interface all
set protocols bgp group int type internal
set protocols bgp group int local-address 33.33.33.33
set protocols bgp group int family inet unicast
set protocols bgp group int family inet-vpn unicast
set protocols bgp group int family evpn signaling
set protocols bgp group int neighbor 6.6.6.6
set protocols bgp group int neighbor 5.5.5.5 local-address 33.33.33.33
set protocols bgp group int neighbor 5.5.5.5 family inet labeled-unicast
set protocols bgp group int neighbor 5.5.5.5 export nhs
set protocols bgp group external type external
set protocols bgp group external family inet labeled-unicast
set protocols bgp group external export PE1_LOOPBACK
set protocols bgp group external peer-as 65400
set protocols bgp group external neighbor 3.3.3.2
set protocols isis interface ge-0/0/0.0
set protocols isis interface lo0.0
set protocols ldp interface all
set policy-options policy-statement PE1_LOOPBACK term 1 from route-filter 5.5.5.5/32 exact
set policy-options policy-statement PE1_LOOPBACK term 1 then accept
set policy-options policy-statement PE1_LOOPBACK term 2 from route-filter 6.6.6.6/32 exact
set policy-options policy-statement PE1_LOOPBACK then accept
set policy-options policy-statement nhs term 1 from protocol bgp
set policy-options policy-statement nhs term 1 then next-hop self

ASBR2

set interfaces ge-0/0/0 unit 0 family inet address 3.3.3.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 4.4.4.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 7.7.7.7/32
set interfaces lo0 unit 0 family iso address 49.0000.7777.7777.7777.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 7.7.7.7
set routing-options autonomous-system 65400
set protocols mpls traffic-engineering mpls-forwarding
set protocols mpls interface all
set protocols bgp group int type internal
set protocols bgp group int local-address 7.7.7.7
set protocols bgp group int family inet unicast
set protocols bgp group int family inet-vpn unicast
set protocols bgp group int family evpn signaling
set protocols bgp group int neighbor 9.9.9.9
set protocols bgp group int neighbor 8.8.8.8 local-address 7.7.7.7
set protocols bgp group int neighbor 8.8.8.8 family inet labeled-unicast
set protocols bgp group int neighbor 8.8.8.8 export nhs
set protocols bgp group external type external
set protocols bgp group external family inet labeled-unicast
set protocols bgp group external export PE2_LOOPBACK
set protocols bgp group external peer-as 65200
set protocols bgp group external neighbor 3.3.3.1
set protocols isis interface ge-0/0/1.0
set protocols isis interface lo0.0
set protocols ldp interface all
set policy-options policy-statement PE2_LOOPBACK term 1 from route-filter 8.8.8.8/32 exact
set policy-options policy-statement PE2_LOOPBACK term 1 then accept
set policy-options policy-statement PE2_LOOPBACK term 2 from route-filter 9.9.9.9/32 exact
set policy-options policy-statement PE2_LOOPBACK then accept
set policy-options policy-statement nhs term 1 from protocol bgp
set policy-options policy-statement nhs term 1 then next-hop self

set interfaces ge-0/0/0 unit 0 family inet address 4.4.4.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 5.5.5.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 9.9.9.9/32
set interfaces lo0 unit 0 family iso address 49.0000.9999.9999.0000.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 9.9.9.9
set routing-options autonomous-system 65400
set protocols mpls interface all
set protocols bgp group int type internal
set protocols bgp group int local-address 9.9.9.9
set protocols bgp group int family inet unicast
set protocols bgp group int family inet-vpn unicast
set protocols bgp group int family evpn signaling
set protocols bgp group int export nhs
set protocols bgp group int cluster 9.9.9.9
set protocols bgp group int neighbor 7.7.7.7
set protocols bgp group int neighbor 8.8.8.8
set protocols isis interface all
set protocols ldp interface ge-0/0/0.0
set protocols ldp interface ge-0/0/1.0
set policy-options policy-statement nhs term 1 from protocol bgp
set policy-options policy-statement nhs term 1 then next-hop self

PE2

set interfaces ge-0/0/0 unit 0 family inet address 3.3.3.2/30
set interfaces ge-0/0/0 unit 0 family iso
set interfaces ge-0/0/0 unit 0 family mpls
set interfaces ge-0/0/1 unit 0 family inet address 4.4.4.1/30
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces lo0 unit 0 family inet address 7.7.7.7/32
set interfaces lo0 unit 0 family iso address 49.0000.7777.7777.7777.00
set interfaces lo0 unit 0 family mpls
set routing-options router-id 7.7.7.7
set routing-options autonomous-system 65400
set protocols mpls traffic-engineering mpls-forwarding
set protocols mpls interface all
set protocols bgp group int type internal
set protocols bgp group int local-address 7.7.7.7
set protocols bgp group int family inet unicast
set protocols bgp group int family inet-vpn unicast
set protocols bgp group int family evpn signaling
set protocols bgp group int neighbor 9.9.9.9
set protocols bgp group int neighbor 8.8.8.8 local-address 7.7.7.7
set protocols bgp group int neighbor 8.8.8.8 family inet labeled-unicast
set protocols bgp group int neighbor 8.8.8.8 export nhs
set protocols bgp group external type external
set protocols bgp group external family inet labeled-unicast
set protocols bgp group external export PE2_LOOPBACK
set protocols bgp group external peer-as 65200
set protocols bgp group external neighbor 3.3.3.1
set protocols isis interface ge-0/0/1.0
set protocols isis interface lo0.0
set protocols ldp interface all
set policy-options policy-statement PE2_LOOPBACK term 1 from route-filter 8.8.8.8/32 exact
set policy-options policy-statement PE2_LOOPBACK term 1 then accept
set policy-options policy-statement PE2_LOOPBACK term 2 from route-filter 9.9.9.9/32 exact
set policy-options policy-statement PE2_LOOPBACK then accept
set policy-options policy-statement nhs term 1 from protocol bgp
set policy-options policy-statement nhs term 1 then next-hop self

Your CE’s will now have a layer 2 circuit between them. In this example, OSPF has been configured on them and you can see from the routing tables that an adjacency has formed and they are learning each other’s routes.

Cisco IOS-XE EVPN/VPWS

13 February 202413 February 2026 nick Leave a comment

Aim of this lab is to create a layer 2 circuit between switch6 & switch7 and form an OSPF adjacency. IS-IS is used for the underlay as it’s better (it really is!).

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_l2_vpns/configuration/xe-3s/asr903/mp-l2-vpns-xe-3s-asr903-book/epvn_vpws_single_homed.html

Exports_eve-ng_export-20240213-194530 Download

CSR1

conf t
hostname csr1
mpls label protocol ldp
l2vpn evpn logging vc-state
l2vpn
router-id 5.5.5.5

interface Loopback0
ip address 5.5.5.5 255.255.255.255
ip router isis 1

interface GigabitEthernet1
ip address 1.1.1.1 255.255.255.252
ip router isis 1
mpls ip

interface GigabitEthernet2
no ip address
service instance 1 ethernet
encapsulation dot1q 1000
rewrite ingress tag pop 1 symmetric
  
router isis 1
net 49.0000.5555.5555.5555.00

router bgp 65200
bgp log-neighbor-changes
neighbor 6.6.6.6 remote-as 65200
neighbor 6.6.6.6 update-source Loopback0

address-family ipv4
neighbor 6.6.6.6 activate
exit-address-family

address-family l2vpn evpn
neighbor 6.6.6.6 activate
exit-address-family

l2vpn evpn instance 1 point-to-point

vpws context cust1
service target 1 source 2
member GigabitEthernet2 service-instance 1

CSR2

conf t
hostname csr2
mpls label protocol ldp
  
interface Loopback0
ip address 6.6.6.6 255.255.255.255
ip router isis 1
  
interface GigabitEthernet1
ip address 1.1.1.2 255.255.255.252
ip router isis 1
mpls ip

interface GigabitEthernet2
ip address 2.2.2.1 255.255.255.252
ip router isis 1
mpls ip
  
router isis 1
net 49.0000.6666.6666.6666.00

router bgp 65200
bgp log-neighbor-changes
neighbor 5.5.5.5 remote-as 65200
neighbor 5.5.5.5 update-source Loopback0
neighbor 7.7.7.7 remote-as 65200
neighbor 7.7.7.7 update-source Loopback0

address-family ipv4
neighbor 5.5.5.5 activate
neighbor 7.7.7.7 activate
exit-address-family

address-family l2vpn evpn
neighbor 5.5.5.5 activate
neighbor 5.5.5.5 route-reflector-client
neighbor 7.7.7.7 activate
exit-address-family

CSR3

conf t
hostname csr3
mpls label protocol ldp

interface Loopback0
ip address 7.7.7.7 255.255.255.255
ip router isis 1

interface GigabitEthernet1
ip address 2.2.2.2 255.255.255.252
ip router isis 1
mpls ip

interface GigabitEthernet2
ip address 3.3.3.1 255.255.255.252
ip router isis 1
mpls ip
  
router isis 1
net 49.0000.7777.7777.7777.00

router bgp 65200
bgp log-neighbor-changes
neighbor 6.6.6.6 remote-as 65200
neighbor 6.6.6.6 update-source Loopback0
neighbor 8.8.8.8 remote-as 65200
neighbor 8.8.8.8 update-source Loopback0

address-family ipv4
neighbor 6.6.6.6 activate
neighbor 8.8.8.8 activate
exit-address-family

address-family l2vpn evpn
neighbor 6.6.6.6 activate
neighbor 6.6.6.6 route-reflector-client
neighbor 8.8.8.8 activate
neighbor 8.8.8.8 route-reflector-client
exit-address-family

CSR4

conf t
hostname csr4
mpls label protocol ldp
  
interface Loopback0
ip address 8.8.8.8 255.255.255.255
ip router isis 1

interface GigabitEthernet1
ip address 3.3.3.2 255.255.255.252
ip router isis 1
mpls ip
 
interface GigabitEthernet2
ip address 4.4.4.1 255.255.255.252
ip router isis 1
mpls ip
  
router isis 1
net 49.0000.8888.8888.8888.00
  
router bgp 65200
bgp log-neighbor-changes
neighbor 7.7.7.7 remote-as 65200
neighbor 7.7.7.7 update-source Loopback0
neighbor 9.9.9.9 remote-as 65200
neighbor 9.9.9.9 update-source Loopback0

address-family ipv4
neighbor 7.7.7.7 activate
neighbor 9.9.9.9 activate
exit-address-family

address-family l2vpn evpn
neighbor 7.7.7.7 activate
neighbor 9.9.9.9 activate
neighbor 9.9.9.9 route-reflector-client
exit-address-family

CSR5

conf t
hostname csr5
mpls label protocol ldp
l2vpn
router-id 9.9.9.9
  
interface Loopback0
ip address 9.9.9.9 255.255.255.255
ip router isis 1

interface GigabitEthernet1
ip address 4.4.4.2 255.255.255.252
ip router isis 1
mpls ip
  
interface GigabitEthernet2
no ip address
service instance 1 ethernet
encapsulation dot1q 1000
rewrite ingress tag pop 1 symmetric

router isis 1
net 49.0000.9999.9999.9999.00

router bgp 65200
bgp log-neighbor-changes
neighbor 8.8.8.8 remote-as 65200
neighbor 8.8.8.8 update-source Loopback0

address-family ipv4
neighbor 8.8.8.8 activate
exit-address-family
 
address-family l2vpn evpn
neighbor 8.8.8.8 activate
exit-address-family

mpls ldp router-id Loopback0
l2vpn evpn instance 1 point-to-point

vpws context cust1
service target 2 source 1
member GigabitEthernet2 service-instance 1

Once all devices configured, run ‘show l2vpn evpn vc id 1‘ to confirm circuit is up and then configure OSPF on your CE devices (use whatever you prefer) and the adjacency will come up.

Aruba VXLAN/EVPN

13 February 202413 February 2026 nick Leave a comment

Another VXLAN/EVPN lab but this time from Aruba. Usual spine/leaf topology and OSPF used as underlay because IS-IS is not supported by the CX image.

Exports_eve-ng_export-20240213-184750 Download

Spine1

conf t
hostname spine1

interface 1/1/1
no shutdown
ip address 1.1.1.1/30
ip ospf 1 area 0.0.0.0

interface 1/1/2
no shutdown
ip address 2.2.2.1/30
ip ospf 1 area 0.0.0.0

interface 1/1/3
no shutdown
ip address 3.3.3.1/30
ip ospf 1 area 0.0.0.0

interface loopback 0
ip address 5.5.5.5/32
ip ospf 1 area 0.0.0.0

router ospf 1
router-id 5.5.5.5
area 0.0.0.0

router bgp 65400
neighbor 7.7.7.7 remote-as 65400
neighbor 7.7.7.7 update-source loopback 0
neighbor 8.8.8.8 remote-as 65400
neighbor 8.8.8.8 update-source loopback 0
neighbor 9.9.9.9 remote-as 65400
neighbor 9.9.9.9 update-source loopback 0
address-family l2vpn evpn
neighbor 7.7.7.7 route-reflector-client
neighbor 7.7.7.7 send-community extended
neighbor 7.7.7.7 activate
neighbor 8.8.8.8 route-reflector-client
neighbor 8.8.8.8 send-community extended
neighbor 8.8.8.8 activate
neighbor 9.9.9.9 route-reflector-client
neighbor 9.9.9.9 send-community extended
neighbor 9.9.9.9 activate
exit-address-family

Spine2

conf t
hostname spine2

interface 1/1/1
no shutdown
ip address 11.11.11.1/30
ip ospf 1 area 0.0.0.0

interface 1/1/2
no shutdown
ip address 12.12.12.1/30
ip ospf 1 area 0.0.0.0

interface 1/1/3
no shutdown
ip address 13.13.13.1/30
ip ospf 1 area 0.0.0.0
 
interface loopback 0
ip address 6.6.6.6/32
ip ospf 1 area 0.0.0.0

router ospf 1
router-id 6.6.6.6
area 0.0.0.0

router bgp 65400
neighbor 7.7.7.7 remote-as 65400
neighbor 7.7.7.7 update-source loopback 0
neighbor 8.8.8.8 remote-as 65400
neighbor 8.8.8.8 update-source loopback 0
neighbor 9.9.9.9 remote-as 65400
neighbor 9.9.9.9 update-source loopback 0
address-family l2vpn evpn
neighbor 7.7.7.7 route-reflector-client
neighbor 7.7.7.7 send-community extended
neighbor 7.7.7.7 activate
neighbor 8.8.8.8 route-reflector-client
neighbor 8.8.8.8 send-community extended
neighbor 8.8.8.8 activate
neighbor 9.9.9.9 route-reflector-client
neighbor 9.9.9.9 send-community extended
neighbor 9.9.9.9 activate
exit-address-family

Leaf1

conf t
hostname leaf1

vlan  77
evpn
vlan 77
rd 7.7.7.7:1
route-target export 65400:1
route-target import 65400:1

interface 1/1/1
no shutdown
ip address 1.1.1.2/30
ip ospf 1 area 0.0.0.0

interface 1/1/2
no shutdown
ip address 11.11.11.2/30
ip ospf 1 area 0.0.0.0

interface 1/1/3
no shutdown
no routing
vlan access 77

interface loopback 0
ip address 7.7.7.7/32
ip ospf 1 area 0.0.0.0

interface vxlan 1
source ip 7.7.7.7
no shutdown
vni 77
vlan 77

router ospf 1
router-id 7.7.7.7
area 0.0.0.0

router bgp 65400
neighbor 5.5.5.5 remote-as 65400
neighbor 5.5.5.5 update-source loopback 0
neighbor 6.6.6.6 remote-as 65400
neighbor 6.6.6.6 update-source loopback 0
address-family l2vpn evpn
neighbor 5.5.5.5 send-community extended
neighbor 5.5.5.5 activate
neighbor 6.6.6.6 send-community extended
neighbor 6.6.6.6 activate
exit-address-family

Leaf2

conf t
hostname leaf2

vlan 144
evpn
vlan 144
rd 8.8.8.8:1
route-target export 65400:2
route-target import 65400:2

interface 1/1/1
no shutdown
ip address 2.2.2.2/30
ip ospf 1 area 0.0.0.0

interface 1/1/2
no shutdown
ip address 12.12.12.2/30
ip ospf 1 area 0.0.0.0

interface 1/1/4
no shutdown
no routing
vlan access 144

interface loopback 0
ip address 8.8.8.8/32
ip ospf 1 area 0.0.0.0

interface vxlan 1
source ip 8.8.8.8
no shutdown
vni 144
vlan 144

router ospf 1
router-id 8.8.8.8
area 0.0.0.0

router bgp 65400
neighbor 5.5.5.5 remote-as 65400
neighbor 5.5.5.5 update-source loopback 0
neighbor 6.6.6.6 remote-as 65400
neighbor 6.6.6.6 update-source loopback 0
address-family l2vpn evpn
neighbor 5.5.5.5 send-community extended
neighbor 5.5.5.5 activate
neighbor 6.6.6.6 send-community extended
neighbor 6.6.6.6 activate
exit-address-family

Leaf3

hostname leaf3

vlan 77,144
evpn
vlan 77
rd 9.9.9.9:1
route-target export 65400:1
route-target import 65400:1
vlan 144
rd 9.9.9.9:2
route-target export 65400:2
route-target import 65400:2

interface 1/1/1
no shutdown
ip address 3.3.3.2/30
ip ospf 1 area 0.0.0.0

interface 1/1/2
no shutdown
ip address 13.13.13.2/30
ip ospf 1 area 0.0.0.0

interface 1/1/3
no shutdown
no routing
vlan access 77

interface 1/1/4
no shutdown
no routing
vlan access 144

interface loopback 0
ip address 9.9.9.9/32
ip ospf 1 area 0.0.0.0

interface vxlan 1
source ip 9.9.9.9
no shutdown
vni 77
vlan 77
vni 144
vlan 144

router ospf 1
router-id 9.9.9.9
area 0.0.0.0

router bgp 65400
neighbor 5.5.5.5 remote-as 65400
neighbor 5.5.5.5 update-source loopback 0
neighbor 6.6.6.6 remote-as 65400
neighbor 6.6.6.6 update-source loopback 0
address-family l2vpn evpn
neighbor 5.5.5.5 send-community extended
neighbor 5.5.5.5 activate
neighbor 6.6.6.6 send-community extended
neighbor 6.6.6.6 activate
exit-address-family

vPC6 & vPC8 are in VLAN 77. vPC7 & vPC9 are in VLAN 144. Apply IP addresses from the same subnet on each device in each VLAN and happy days!

Arista VXLAN/EVPN

7 February 202413 February 2026 nick Leave a comment

Spine/leaf topology with OSPF underlay and Spines acting as Route Reflectors

https://www.arista.com/en/um-eos/eos-vxlan-configuration

EVE-NG Import file

Exports_eve-ng_export-20240207-173400 Download

Spine1

conf t

interface Ethernet1
no switchport
ip address 1.1.1.1/30
ip ospf area 0.0.0.0

interface Ethernet2
no switchport
ip address 2.2.2.1/30
ip ospf area 0.0.0.0
  
interface Ethernet3
no switchport
ip address 3.3.3.1/30
ip ospf area 0.0.0.0

interface Loopback0
ip address 5.5.5.5/32
ip ospf area 0.0.0.0

ip routing

router bgp 65400
neighbor SPINE peer group
neighbor SPINE remote-as 65400
neighbor SPINE update-source Loopback0
neighbor SPINE route-reflector-client
neighbor SPINE send-community extended
neighbor 7.7.7.7 peer group SPINE
neighbor 8.8.8.8 peer group SPINE
neighbor 9.9.9.9 peer group SPINE

address-family evpn
neighbor SPINE activate

router ospf 1
router-id 5.5.5.5

Spine2

conf t
interface Ethernet1
no switchport
ip address 11.11.11.1/30
ip ospf area 0.0.0.0
 
interface Ethernet2
no switchport
ip address 12.12.12.1/30
ip ospf area 0.0.0.0
  
interface Ethernet3
no switchport
ip address 13.13.13.1/30
ip ospf area 0.0.0.0

interface Loopback0
ip address 6.6.6.6/32
ip ospf area 0.0.0.0

ip routing

router bgp 65400
neighbor SPINE peer group
neighbor SPINE remote-as 65400
neighbor SPINE update-source Loopback0
neighbor SPINE route-reflector-client
neighbor SPINE send-community extended
neighbor 7.7.7.7 peer group SPINE
neighbor 8.8.8.8 peer group SPINE
neighbor 9.9.9.9 peer group SPINE

address-family evpn
neighbor SPINE activate

router ospf 1
router-id 6.6.6.6

Leaf1

conf t
vlan 1234

interface Ethernet1
no switchport
ip address 1.1.1.2/30
ip ospf area 0.0.0.0

interface Ethernet2
no switchport
ip address 11.11.11.2/30
ip ospf area 0.0.0.0
  
interface Ethernet3
switchport access vlan 1234

interface Loopback0
ip address 7.7.7.7/32
ip ospf area 0.0.0.0

interface Vxlan1
vxlan source-interface Loopback0
vxlan udp-port 4789
vxlan vlan 1234 vni 1234

ip routing

router bgp 65400
neighbor 5.5.5.5 remote-as 65400
neighbor 5.5.5.5 update-source Loopback0
neighbor 5.5.5.5 send-community extended
neighbor 6.6.6.6 remote-as 65400
neighbor 6.6.6.6 update-source Loopback0
neighbor 6.6.6.6 send-community extended

vlan 1234
rd 7.7.7.7:1
route-target both 65400:1
redistribute learned

address-family evpn
neighbor 5.5.5.5 activate
neighbor 6.6.6.6 activate

address-family ipv4
no neighbor 5.5.5.5 activate
no neighbor 6.6.6.6 activate
    
router ospf 1
router-id 7.7.7.7

Leaf2

conf t
vlan 1234,2468

interface Ethernet1
no switchport
ip address 2.2.2.2/30
ip ospf area 0.0.0.0
    
interface Ethernet2
no switchport
ip address 12.12.12.2/30
ip ospf area 0.0.0.0
    
interface Ethernet3
switchport access vlan 1234
   
interface Ethernet4
switchport access vlan 2468
    
interface Loopback0
ip address 8.8.8.8/32
ip ospf area 0.0.0.0

interface Vxlan1
vxlan source-interface Loopback0
vxlan udp-port 4789
vxlan vlan 1234 vni 1234
vxlan vlan 2468 vni 2468
 
ip routing

router bgp 65400
neighbor 5.5.5.5 remote-as 65400
neighbor 5.5.5.5 update-source Loopback0
neighbor 5.5.5.5 send-community extended
neighbor 6.6.6.6 remote-as 65400
neighbor 6.6.6.6 update-source Loopback0
neighbor 6.6.6.6 send-community extended
  
vlan 1234
rd 8.8.8.8:1
route-target both 65400:1
redistribute learned
    
vlan 2468
rd 8.8.8.8:2
route-target both 65400:2
redistribute learned

address-family evpn
neighbor 5.5.5.5 activate
neighbor 6.6.6.6 activate

address-family ipv4
no neighbor 5.5.5.5 activate
no neighbor 6.6.6.6 activate

router ospf 1
router-id 8.8.8.8

Leaf3

conf t
vlan 2468
    
interface Ethernet1
no switchport
ip address 3.3.3.2/30
ip ospf area 0.0.0.0
    
interface Ethernet2
no switchport
ip address 13.13.13.2/30
ip ospf area 0.0.0.0

interface Ethernet4
switchport access vlan 2468
    
interface Loopback0
ip address 9.9.9.9/32
ip ospf area 0.0.0.0
  
interface Vxlan1
vxlan source-interface Loopback0
vxlan udp-port 4789
vxlan vlan 2468 vni 2468
   
ip routing

router bgp 65400
neighbor 5.5.5.5 remote-as 65400
neighbor 5.5.5.5 update-source Loopback0
neighbor 5.5.5.5 send-community extended
neighbor 6.6.6.6 remote-as 65400
neighbor 6.6.6.6 update-source Loopback0
neighbor 6.6.6.6 send-community extended

vlan 2468
rd 8.8.8.8:2
route-target both 65400:2
redistribute learned

address-family evpn
neighbor 5.5.5.5 activate
neighbor 6.6.6.6 activate

address-family ipv4
no neighbor 5.5.5.5 activate
no neighbor 6.6.6.6 activate
    
router ospf 1
router-id 9.9.9.9

Confirm the BGP sessions have been established by running ‘show bgp evpn summary‘. Below output from leaf2.

vPC6 & vPC8 are in VLAN 1234. vPC7 & vPC9 are in VLAN 2468. Configure IP addresses from the same subnet to each vPC in each VLAN and you should have IP connectivity like below.