Juniper EVPN-VXLAN Centrally Routed Bridging configuration
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Goal
In this tutorial we will setup a spine/leaf topology with 2 spines and 2 leaves. The goal is to configure EVPN-VXLAN centrally Routed Bridging (CRB)
What is Centrally Routed Bridging?
Centrally Routed Bridging( CRB) is just another mechanism that provides routing functionally within the EVPN-VXLAN fabric.
In the CRB design, the inter-VXLAN routing is performed by the spine devices.
Prerequisites
For this tutorial I am using :
- EVE-NG 2.0.3-112
- VQFX model: vqfx-10000 running JUNOS 19.4R1.10
- Four(4) servers
Diagram
Setup and Configuration
Spine1 configuration
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 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 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 send-direct term send-lo0 from protocol direct 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 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 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 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 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