cisco — Example: Enabling Layer 3 External Connectivity with MPLS Layer 3 VPN through eBGP

n - NAT, Ni - NAT inside, No - NAT outside, Nd - NAT DIA i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route H - NHRP, G - NHRP registered, g - NHRP registration summary o - ODR, P - periodic downloaded static route, l - LISP a - application route + - replicated route, % - next hop override, p - overrides from PfR Gateway of last resort is not set 10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks C 10.1.101.0/24 is directly connected, Vlan101 L 10.1.101.1/32 is directly connected, Vlan101 C 10.1.102.0/24 is directly connected, Vlan102 L 10.1.102.1/32 is directly connected, Vlan102 B 10.1.255.101/32 [200/0] via 172.16.254.6, 00:06:25, Vlan901 B 10.1.255.103/32 [200/0] via 172.16.254.6, 00:05:54, Vlan901 Border VTEP The following example shows the output for the show bgp vpnv4 unicast all command on border VTEP for the IP address of the external device:

Border_VTEP# show bgp vpnv4 uni all 10.1.255.103/32 BGP routing table entry for 1:1:10.1.255.103/32, version 9 Paths: (1 available, best #1, table green) Not advertised to any peer Refresh Epoch 1 65002 172.16.255.101 (via default) from 172.16.255.101 (172.16.255.101) Origin incomplete, localpref 100, valid, external, best Extended Community: RT:1:1 Local vxlan vtep: vrf:green, vni:50901 local router mac:0C75.BD67.EF48 encap:8 vtep-ip:172.16.254.6 bdi:Vlan901 mpls labels in/out nolabel/16 rx pathid: 0, tx pathid: 0x0 Updated on May 21 2020 13:48:09 UTC The following example shows the output for the show bgp l2vpn evpn route-type command for route type 5 on border VTEP:

Border_VTEP# show bgp l2vpn evpn route-type 5 0 10.1.255.103 32 BGP routing table entry for [5][1:1][0][32][10.1.255.103]/17, version 32 Paths: (1 available, best #1, table EVPN-BGP-Table) Advertised to update-groups: 1 Refresh Epoch 1 65002, imported path from base 172.16.255.101 (via default) from 172.16.255.101 (172.16.255.101) Origin incomplete, localpref 100, valid, external, best EVPN ESI: 00000000000000000000, Gateway Address: 0.0.0.0, local vtep: 172.16.254.6, VNI Label 50901, MPLS VPN Label 16 Extended Community: RT:1:1 ENCAP:8 Router MAC:0C75.BD67.EF48 rx pathid: 0, tx pathid: 0x0 net: 0x7FED704944D0, path: 0x7FED704A4CA0, pathext: 0x7FED6DA6E250, exp_net:

0x7FED6F812678 Configuring EVPN VXLAN External Connectivity Example: Enabling Layer 3 External Connectivity with MPLS Layer 3 VPN through eBGP Configuring EVPN VXLAN External Connectivity 38