You are adding a new QFX Series switch to an EVPN-VXLAN IP fabric. In this scenario, which two statements are correct? (Choose two.)

When configuring a QFX Series switch for an EVPN-VXLAN fabric, two fundamental steps are required to establish the overlay. First, you must enable the EVPN address family within the BGP protocol configuration using the family evpn signaling statement. This allows BGP to act as the control plane, carrying EVPN Network Layer Reachability Information (NLRI) between VTEPs. Second, you must specify that the data plane encapsulation for this EVPN instance is VXLAN. This is accomplished by configuring encapsulation vxlan under the [edit protocols evpn] hierarchy. These two configurations are essential for linking the EVPN control plane to the VXLAN data plane.

B. The family vpls signaling address family is used for the legacy BGP-signaled Virtual Private LAN Service (VPLS) technology, not for EVPN.

D. While the loopback interface must be advertised for VTEP reachability, this can be done using an IGP (like OSPF or IS-IS) or BGP. Using BGP is not a strict requirement.

1. Juniper Networks TechLibrary, "Understanding EVPN with VXLAN Data Plane Encapsulation": This document explicitly states, "To enable EVPN, you include the encapsulation vxlan statement at the [edit protocols evpn] hierarchy level... You must also configure the family evpn address family at the [edit protocols bgp] hierarchy level to enable the exchange of EVPN routes." This directly validates answers A and C.

2. Juniper Networks TechLibrary, "Example: Configuring a Centrally-Routed Bridging Overlay": In the configuration example for a leaf device, the guide shows the commands set protocols bgp group family evpn signaling and set protocols evpn encapsulation vxlan. This demonstrates the practical application of the required configuration statements.

3. Juniper Day One+: "Deploying in the Campus with EVPN Multihoming": In Chapter 3, "Core and Distribution Layer Configuration," the sample configuration for the distribution switches (which act as VTEPs) includes both family evpn signaling under the BGP configuration and encapsulation vxlan under the protocols evpn hierarchy, reinforcing these as essential steps. It also shows an IGP (OSPF) being used for underlay reachability, confirming that BGP is not the only option for advertising the loopback interface.