Juniper – IS-IS Unnumbered Ethernet Interfaces

It’s been a while since a new lab was posted so let’s get back to it.

This lab is Segment Routing EVPN VPWS with IS-IS as the IGP but with a slight twist. None of the physical interfaces have an IP address and they borrow their IP from the Loopback. The below article explains the concept in more detail.

IS-IS and Unnumbered Ethernet Interfaces in Junos

PE1

set chassis network-services enhanced-ip
set interfaces ge-0/0/0 unit 0 family inet unnumbered-address lo0.0
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 unnumbered-address lo0.0
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces ge-0/0/2 unit 0 family inet unnumbered-address lo0.0
set interfaces ge-0/0/2 unit 0 family iso
set interfaces ge-0/0/2 unit 0 family mpls
set interfaces ge-0/0/3 vlan-tagging
set interfaces ge-0/0/3 encapsulation flexible-ethernet-services
set interfaces ge-0/0/3 unit 67 encapsulation vlan-ccc
set interfaces ge-0/0/3 unit 67 vlan-id 67
set interfaces lo0 unit 0 family inet address 5.5.5.5/32
set interfaces lo0 unit 0 family iso address 49.0000.5555.0000.0000.00
set routing-instances EVPN instance-type evpn-vpws
set routing-instances EVPN protocols evpn interface ge-0/0/3.67 vpws-service-id local 67
set routing-instances EVPN protocols evpn interface ge-0/0/3.67 vpws-service-id remote 76
set routing-instances EVPN interface ge-0/0/3.67
set routing-instances EVPN route-distinguisher 5.5.5.5:67
set routing-instances EVPN vrf-target target:65400:67
set routing-options router-id 5.5.5.5
set routing-options autonomous-system 65400
set protocols bgp group EVPN type internal
set protocols bgp group EVPN local-address 5.5.5.5
set protocols bgp group EVPN family evpn signaling
set protocols bgp group EVPN neighbor 9.9.9.9
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 ge-0/0/2.0 point-to-point
set protocols isis interface lo0.0
set protocols isis source-packet-routing srgb start-label 80000
set protocols isis source-packet-routing srgb index-range 1000
set protocols isis source-packet-routing node-segment ipv4-index 50
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols mpls interface ge-0/0/0.0
set protocols mpls interface ge-0/0/1.0
set protocols mpls interface ge-0/0/2.0
set protocols mpls interface lo0.0

PE2

set chassis network-services enhanced-ip
set interfaces ge-0/0/0 unit 0 family inet unnumbered-address lo0.0
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 unnumbered-address lo0.0
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces ge-0/0/2 unit 0 family inet unnumbered-address lo0.0
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 6.6.6.6/32
set interfaces lo0 unit 0 family iso address 49.0000.6666.0000.0000.00
set routing-options router-id 6.6.6.6
set routing-options autonomous-system 65400
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 ge-0/0/2.0 point-to-point
set protocols isis interface lo0.0
set protocols isis source-packet-routing srgb start-label 80000
set protocols isis source-packet-routing srgb index-range 1000
set protocols isis source-packet-routing node-segment ipv4-index 60
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols mpls interface ge-0/0/0.0
set protocols mpls interface ge-0/0/1.0
set protocols mpls interface ge-0/0/2.0
set protocols mpls interface lo0.0

PE3

set chassis network-services enhanced-ip
set interfaces ge-0/0/0 unit 0 family inet unnumbered-address lo0.0
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 unnumbered-address lo0.0
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces ge-0/0/2 unit 0 family inet unnumbered-address lo0.0
set interfaces ge-0/0/2 unit 0 family iso
set interfaces ge-0/0/2 unit 0 family mpls
set interfaces ge-0/0/3 vlan-tagging
set interfaces ge-0/0/3 encapsulation flexible-ethernet-services
set interfaces ge-0/0/3 unit 67 encapsulation vlan-ccc
set interfaces ge-0/0/3 unit 67 vlan-id 67
set interfaces lo0 unit 0 family inet address 7.7.7.7/32
set interfaces lo0 unit 0 family iso address 49.0000.7777.0000.0000.00
set interfaces lo0 unit 0 family mpls
set routing-instances EVPN instance-type evpn-vpws
set routing-instances EVPN protocols evpn interface ge-0/0/3.67 vpws-service-id local 76
set routing-instances EVPN protocols evpn interface ge-0/0/3.67 vpws-service-id remote 67
set routing-instances EVPN interface ge-0/0/3.67
set routing-instances EVPN route-distinguisher 7.7.7.7:67
set routing-instances EVPN vrf-target target:65400:67
set routing-options router-id 7.7.7.7
set routing-options autonomous-system 65400
set protocols bgp group EVPN type internal
set protocols bgp group EVPN local-address 7.7.7.7
set protocols bgp group EVPN family evpn signaling
set protocols bgp group EVPN neighbor 9.9.9.9
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 ge-0/0/2.0 point-to-point
set protocols isis interface lo0.0 passive
set protocols isis source-packet-routing srgb start-label 80000
set protocols isis source-packet-routing srgb index-range 1000
set protocols isis source-packet-routing node-segment ipv4-index 70
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols mpls interface ge-0/0/0.0
set protocols mpls interface ge-0/0/1.0
set protocols mpls interface lo0.0

PE4

set chassis network-services enhanced-ip
set interfaces ge-0/0/0 unit 0 family inet unnumbered-address lo0.0
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 unnumbered-address lo0.0
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/1 unit 0 family mpls
set interfaces ge-0/0/2 unit 0 family inet unnumbered-address lo0.0
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 49.0000.8888.0000.0000.00
set interfaces lo0 unit 0 family mpls
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 ge-0/0/2.0 point-to-point
set protocols isis interface lo0.0
set protocols isis source-packet-routing srgb start-label 80000
set protocols isis source-packet-routing srgb index-range 1000
set protocols isis source-packet-routing node-segment ipv4-index 80
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only
set protocols mpls interface ge-0/0/0.0
set protocols mpls interface ge-0/0/1.0
set protocols mpls interface lo0.0

RR

set chassis network-services enhanced-ip
set interfaces ge-0/0/1 unit 0 family inet unnumbered-address lo0.0
set interfaces ge-0/0/1 unit 0 family iso
set interfaces ge-0/0/2 unit 0 family inet unnumbered-address lo0.0
set interfaces ge-0/0/2 unit 0 family iso
set interfaces ge-0/0/3 unit 0 family inet unnumbered-address lo0.0
set interfaces ge-0/0/3 unit 0 family iso
set interfaces ge-0/0/4 unit 0 family inet unnumbered-address lo0.0
set interfaces ge-0/0/4 unit 0 family iso
set interfaces lo0 unit 0 family inet address 9.9.9.9/32
set interfaces lo0 unit 0 family iso address 49.0000.9999.0000.0000.00
set routing-options resolution rib bgp.evpn.0 resolution-ribs inet.0
set routing-options router-id 9.9.9.9
set routing-options autonomous-system 65400
set protocols bgp group EVPN type internal
set protocols bgp group EVPN local-address 9.9.9.9
set protocols bgp group EVPN family evpn signaling
set protocols bgp group EVPN cluster 9.9.9.9
set protocols bgp group EVPN neighbor 5.5.5.5
set protocols bgp group EVPN neighbor 7.7.7.7
set protocols isis interface ge-0/0/1.0 point-to-point
set protocols isis interface ge-0/0/2.0 point-to-point
set protocols isis interface ge-0/0/3.0 point-to-point
set protocols isis interface ge-0/0/4.0 point-to-point
set protocols isis interface lo0.0
set protocols isis level 1 disable
set protocols isis level 2 wide-metrics-only

As usual, 2 Cisco devices have been used as CEs with OSPF configured on both.

Confirmation of VPWS instance.