JN0-683: Data Center, Professional (JNCIP-DC)Demo

By Juniper · Question Mode

QuestionQ55

EVPN-VXLAN Signaling

Which three statements are accurate regarding symmetric IRB routing with EVPN Type 2 routes?

Choose three
  • A An L3 interface (IRB) is required for each local VLAN.
  • B Symmetric routing requires MAC-VRF.
  • C Symmetric routing is less efficient than asymmetric routing.
  • D Symmetric routing supports the EVPN service VLAN bundle.
  • E Symmetric routing requires an extra transit VNI for each VRF.
Explanation

Symmetric EVPN Type 2 routing uses MAC-VRF instances at Layer 2 and associates local VLANs with IRB interfaces for routing into a tenant Layer 3 VRF. Each tenant VRF requires an additional Layer 3 transit VLAN/VNI for VXLAN traffic between VTEPs. Supported service types are VLAN-based and VLAN-aware bundle; VLAN-bundle service is not supported for this IRB model. The model improves VLAN scaling by allowing a VTEP to configure only VLANs serving its connected hosts.

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