Posted on July 11, 2021 9:58 am
 |  Asked by shuja naqvi
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Hi Guys

I am using VPN-V4 AF to import/export routes into and out of EVPN b/w two fabrics in my lab. Ideally I should see MPLS VPN labels when I run pcaps b/w the Border router and the Border gateways of the fabric but I am still seeing the VXLAN traffic in it. There is no Control and data plane separation as both remote leaf-s in each fabric can see each other in the vtep flood list. What have I missed here? If one uses IP-VPN Control plane for EVPN DCI and hierarchy, one should not see the vteps behind another fabric.

Thanks in advance


Posted by Wei
Answered on August 19, 2021 1:03 pm

You have evpn peering between BL1A/BL1B that explains why evpn routes are shared across,
It seems your config is incomplete leveraging d-path for loop prevention and best path selection.

Regarding vpn-ipv4,
Please check if BR is sending out to BL1A/BL1B with "show bgp neighbor x.x.x.x vpn-ipv4 advertised-routes"
You can also check the LDP from BL1A/BL1B with "show tunnel rib brief"

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