You are troubleshooting a suboptimal traffic forwarding issue in an EVPN-VXLAN fabric with multi-homed devices. Traffic destined for a multi-homed server is being sent to only one of the PEs despite all-active mode being configured. Which EVPN route type and mechanism are responsible for enabling load balancing across all available PEs attached to the same Ethernet segment?
You are configuring a Junos EVPN-VXLAN environment where Type-3 (Inclusive Multicast Ethernet Tag) routes are being exchanged. A remote MX router is failing to establish ingress replication tunnels because it does not import the Type-3 route. Which configuration statement under the routing-instance is missing or misconfigured?
During a maintenance window, an administrator needs to manually force a Designated Forwarder (DF) role change on a multi-homed Ethernet segment for an EVPN instance. Which parameter must be adjusted to influence the DF election algorithm in Junos OS?
When configuring VXLAN data plane encapsulation inside an EVPN routing instance on Junos OS, which logical interface type must be bound to the bridge domain to provide VXLAN VNI mapping?
An engineer is troubleshooting EVPN type 2 routes between two MX Series routers and notices that MAC addresses learned locally are not being advertised to the remote VTEP. Which command should the engineer use to verify that the EVPN instance is actively generating and exporting MAC-VRF routes?
An enterprise network architect is designing an EVPN-VXLAN fabric and wants to ensure that MAC address churn (frequent moving of a MAC between ports) does not destabilize the control plane. Which feature should be enabled in the EVPN instance?
Which EVPN route type is known as the Ethernet Segment Route and is advertised by a PE router to signal its connectivity to a multi-homed Ethernet segment?
An administrator wishes to configure VXLAN data plane encapsulation on an MX Series router with an EVPN instance. Which statement under the routing-instances hierarchy defines the local VTEP source interface?
You are troubleshooting a scenario where an MX Series router running an EVPN-VXLAN instance receives Type-2 routes from a remote PE, but the local data plane fails to install the forwarding entries because of a mismatch in encapsulation types. Where is the encapsulation type for VXLAN defined within a Junos EVPN instance?
You are deploying an EVPN-VXLAN fabric on Juniper MX Series routers. A tenant has two VLANs, VLAN 100 and VLAN 200, that must be stretched across the fabric. You configure a single EVPN instance with a VLAN-aware bundle service and assign both VLANs to it. After committing the configuration, you notice that MAC addresses learned in VLAN 100 are being installed in the MAC table for VLAN 200 on remote PEs. Which EVPN route type is used to advertise the VLAN membership and ensure proper VLAN-based forwarding in this scenario?
You are configuring an EVPN-VXLAN fabric on Juniper switches using an Ethernet VPN (EVPN) instance with a VLAN-based service. A host connected to a leaf switch needs to communicate with a host in a different VLAN on a remote leaf. Which EVPN route type is used to advertise the IP-to-MAC binding for the local host's gateway, enabling inter-subnet routing?
You are configuring an EVPN-VXLAN fabric with a distributed gateway model. You want to enable inter-subnet routing while ensuring that return traffic from a remote subnet is routed optimally without tromboning through a centralized gateway. Which feature should you configure on the PE routers?
You are deploying an EVPN-VXLAN fabric and need to ensure that the underlay network provides reachability between VTEPs. Which routing protocol is commonly used for the underlay in a Juniper EVPN-VXLAN deployment?
You are troubleshooting an EVPN-VXLAN environment where a Juniper QFX Series switch is configured as a VTEP. You notice that MAC addresses learned from the local access ports are not being advertised to remote VTEPs via BGP EVPN. The BGP session is established, and Type-3 routes are being exchanged. Which action should you take to resolve this issue?
You are troubleshooting an EVPN-VXLAN fabric on Juniper switches. A leaf switch is configured with an EVPN instance and a VXLAN tunnel interface. Hosts on this leaf cannot communicate with hosts on a remote leaf, even though BGP EVPN sessions are established and Type 2 routes are exchanged. What is the most likely cause of the connectivity failure?
You are configuring an EVPN-VXLAN fabric on Juniper switches. You want to enable inter-subnet routing using a distributed anycast gateway. Which TWO statements are true about this configuration? (Choose two.)
You are configuring an EVPN-VXLAN fabric on Juniper devices. You need to ensure that the underlay network can transport VXLAN-encapsulated packets between leaf switches. The underlay uses an IP fabric with OSPF as the IGP. Which statement describes the required MTU configuration on the underlay interfaces to support VXLAN traffic without fragmentation?
An administrator is deploying EVPN multi-homing with all-active mode on an MX Series router. Which configuration element uniquely identifies the provider edge (PE) router's attachment circuit to an Ethernet segment?
An administrator notices that broadcast, unknown unicast, and multicast (BUM) traffic sent from a local host is looping back to the originating multi-homed PE when using an all-active Ethernet segment. Which mechanism prevents this loop in EVPN?
Which specific EVPN route type is responsible for carrying IP prefix routes, often used for inter-subnet forwarding in an IP-VRF-to-EVPN integration scenario?
When configuring centralized gateway or distributed gateway routing models in an EVPN-VXLAN environment, how does a distributed gateway using Integrated Routing and Bridging (IRB) interfaces operate regarding default gateway functionality?
An engineer is verifying MAC learning behavior in an EVPN instance. A remote host's MAC address is learned via BGP Type 2 routes, but when the local host sends traffic to it, the packet drops. The engineer runs 'show route table bgp.evpn.0' and sees the route. What is the most likely reason the packet is dropping in the data plane?
You are integrating an EVPN-VXLAN fabric with an existing MPLS L3VPN backbone using a data center gateway. Which route type allows seamless translation and communication of prefix routes between the EVPN instance and the IP-VRF MPLS VPN backbone?
An engineer is troubleshooting a newly configured EVPN-VXLAN multi-homed setup where the Designated Forwarder (DF) is constantly toggling between two PE routers. What is the most likely cause of this DF churn?
You are designing an EVPN network with active-active multi-homing. A host sends traffic to a multi-homed PE. The PE receives the traffic on a designated link. How does EVPN suppress unnecessary flooding across the core for unknown unicast traffic originating from a multi-homed site?
You are analyzing BGP EVPN updates and observe an Extended Community attached to a Type-2 route containing a sequence number. What is the primary function of this MAC Mobility Extended Community?
An administrator configures EVPN with VXLAN encapsulation and wants to ensure that interfaces assigned to bridge domains drop frames whose source MAC address is not learned or is unauthorized. Which feature should be enabled?
Which command allows an operator to view the local and remote MAC addresses learned via EVPN control plane and data plane across all bridge domains on an MX Series router?
An engineer configures an EVPN instance with multiple bridge domains. Each bridge domain requires a unique VNI. Where are the VNI values mapped to their respective bridge domains in Junos OS?
When configuring EVPN multi-homing in all-active mode, which THREE key components or concepts must be properly established across the PE routers? (Choose three)
When troubleshooting EVPN control plane connectivity in Junos OS, which THREE commands provide essential diagnostic information regarding EVPN routing tables and peers? (Choose three)
When designing an EVPN-VXLAN fabric with integrated routing and bridging (IRB), which THREE considerations are critical for proper inter-subnet forwarding across VTEPs? (Choose three)
You are troubleshooting an EVPN-VXLAN fabric where a host connected to a multi-homed Ethernet segment is not receiving traffic from a remote PE. The remote PE has learned the host's MAC address via EVPN Type 2 routes. You suspect an issue with the Designated Forwarder (DF) election. Which command would you use on the local PE to verify the DF election state for the Ethernet segment?
You are deploying an EVPN-VXLAN fabric with a pair of Juniper EX Series switches acting as leaf devices for a dual-homed server. The server is connected to both leaf switches using a LAG with LACP, and you want to achieve All-Active multihoming so that both leaf switches can forward traffic to and from the server simultaneously. Which statement correctly describes the role of the Designated Forwarder (DF) in this scenario?
You are deploying an EVPN-VXLAN fabric on Juniper switches with a multi-homed server connected to two leaf switches in an all-active configuration. The server's MAC address is learned locally on both leaf switches. Which mechanism ensures that only one leaf switch forwards BUM traffic to the server, while both can forward known unicast traffic?
You are configuring an EVPN-VXLAN fabric on Juniper switches. A leaf switch needs to advertise its local VXLAN Tunnel Endpoint (VTEP) address to remote VTEPs so they can establish VXLAN tunnels. Which EVPN route type is used to advertise the VTEP IP address and support BUM traffic replication?
You are configuring an EVPN-VXLAN fabric on Juniper devices. You want to enable the exchange of EVPN routes between PE routers. Which BGP configuration is required on each PE to support EVPN signaling?
You are deploying an EVPN-VXLAN fabric on Juniper MX Series routers. Host A is attached to a leaf device and its MAC address is learned locally. You need to ensure that this MAC is advertised to all other leaf devices in the same EVPN instance so they can forward traffic to Host A without flooding. Which EVPN route type should you verify is being generated and advertised?
You are configuring an EVPN-VXLAN fabric on Juniper devices. You need to ensure that the underlay network supports the VXLAN data plane and that BUM traffic is efficiently handled. Which two statements are correct about the VXLAN tunnel endpoint (VTEP) configuration on Junos? (Choose two.)
You are troubleshooting an EVPN-VXLAN fabric where a host behind Leaf 1 is unable to communicate with a host behind Leaf 2, even though both hosts are in the same VLAN and EVPN instance. You verify that Type 2 routes are being exchanged, but traffic is not forwarded. You suspect an issue with the VXLAN tunnel. Which Junos command would you use to check the status of the VXLAN tunnel interface and its associated VTEP?
You are troubleshooting an EVPN-VXLAN network where a Juniper MX Series router is acting as a PE. You notice that traffic from a local host to a remote host is being dropped, even though the remote host's MAC address is present in the EVPN database. The BGP EVPN session is up, and Type-2 routes are exchanged. Which of the following is the most likely cause?
You are configuring an EVPN-VXLAN fabric on Juniper devices and need to enable ARP suppression to reduce broadcast traffic. Which statement correctly describes how ARP suppression works in this environment?
You are configuring an EVPN-VXLAN fabric with a distributed gateway (anycast gateway) to optimize routing for hosts in different subnets. You need to ensure that the distributed gateway functions correctly. Which TWO statements are true about the distributed gateway implementation on Juniper devices? (Choose two.)
You are setting up a new EVPN-VXLAN fabric on Juniper switches. You need to configure the BGP session between two PE routers to exchange EVPN routes. Which BGP configuration is required to enable the EVPN address family on the session?