JN0-683 · Question #14
Which three statements are correct about symmetric IRB routing with EVPN Type 2 routes? (Choose three.)
The correct answer is A. An L3 interface (IRB) is required for each local VLAN. B. Symmetric routing requires MAC-VRF. D. Symmetric routing requires an extra transit VNI for each VRF. An L3 interface (IRB) is required for each local VLAN: In symmetric IRB (Integrated Routing and Bridging) routing with EVPN Type 2 routes, an L3 interface (IRB) is needed for each VLAN in the local network. This interface provides the Layer 3 connectivity for the local VLANs…
Question
Which three statements are correct about symmetric IRB routing with EVPN Type 2 routes? (Choose three.)
Options
- AAn L3 interface (IRB) is required for each local VLAN.
- BSymmetric routing requires MAC-VRF.
- CSymmetric routing supports the EVPN service VLAN bundle.
- DSymmetric routing requires an extra transit VNI for each VRF.
- ESymmetric routing is less efficient than asymmetric routing.
How the community answered
(66 responses)- A77% (51)
- C15% (10)
- E8% (5)
Explanation
An L3 interface (IRB) is required for each local VLAN: In symmetric IRB (Integrated Routing and Bridging) routing with EVPN Type 2 routes, an L3 interface (IRB) is needed for each VLAN in the local network. This interface provides the Layer 3 connectivity for the local VLANs and allows routing between bridged domains. Symmetric routing requires MAC-VRF: Symmetric routing typically requires the use of MAC- VRF (MAC address VPN), which enables the device to route traffic while maintaining both Layer 2 and Layer 3 information. This ensures that both bridged and routed traffic are handled Symmetric routing requires an extra transit VNI for each VRF: It requires an extra transit VNI (a Layer 3 VNI) per VRF that carries routed (Layer 3) traffic across the VXLAN fabric.
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