Q22Networking
Which action is carried out by the ingress VTEP for traffic between EVPN VXLAN overlays?
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Discussion · 4
3
EVPN VXLAN in the SPCOR exam? It is not int the blueprint
A 2
Selected Answer: A
In the provided link you can find:
With asymmetric IRB, the ingress VTEP does both Layer-2 bridging and Layer-3 routing lookup, whereas the egress VTEP does only Layer-2 bridging lookup.
1
yeah, that doesn't make sense... VXLAN is datacenter technology...
A 1
Selected Answer: A
Asymmetric IRB ingress VTEP
- routes the incoming packet into its destination VLAN
- bridges and tunnels the packet within the destination VLAN over to the receiving VTEP with the MAC address
Symmetric IRB ingress VTEP
- tunnels the packet over the transit VNI over to the receiving VTEP
- then: the receiving VTEP routes the packet into the correct destination VLAN and then bridges it to the destination MAC address
So while C sounds right, the ingress VTEP does not do the routing, that's the egress VTEP's job