Configuring Unified Routing

For Unified Routing to work, each participating Border Leaf (BL) node must be configured to import routes for the EVPN and VPNv4/VPNv6 address families. Both LDP and RSVP MPLS tunnel types are supported. Ensure that one of these tunnel types is configured between the nodes. The next-hops of the BGP VPNv4/VPNv6 routes received from the remote BL should be reachable through these tunnels.

1. On the Local BL, in the L2VPN EVPN address family, configure importing VPNv4 or VPNv6 routes. You can choose to import both these route types.
   

   SLX(config)# router bgp
   SLX(config-bgp-router)# address-family l2vpn evpn
   SLX(config-bgp-evpn)# import vpnv4 unicast reoriginate
   SLX(config-bgp-evpn)# import vpnv6 unicast reoriginate
                       

   On successful completion of this command, the VPNv4 and VPNv6 routes that are installed in the local VRF(s) are re-exported to EVPN RIB IN and advertised as EVPN type-5 prefix routes inside the IP fabric.
2. On the Local BL, each address family (VPNv4/VPNv6) must be configured to import and re-originate the BGP EVPN type-5 prefixes.
   

   SLX(config)# router bgp
   SLX(config-BGP-router)# address-family vpnv4 unicast
   SLX(config-BGP-vpnv4u)# import l2vpn evpn reoriginate 
   SLX(config-BGP-vpnv4u)# exit 
   SLX(config-BGP-router)# address-family vpnv6 unicast
   SLX(config-BGP-vpnv6u)# import l2vpn evpn reoriginate 
   SLX(config-BGP-vpnv6u)# exit 
   SLX(config-BGP-router)# 
                       

   On successful completion of these configurations, the EVPN type-5 prefix routes that are installed in the local VRF(s) are re-originated and advertised as L3VPN NLRI to BGP VPNv4/VPNv6 peers.