A.  

There are two methods to implement routing between the PE and CE, static and dynamic.

B.  

BGP is the preferred option for PE-CE routing as it scales better than static routing.

C.  

eBGP is preferred which means that the PE and CE are required to be in different autonomous systems.

D.  

The CE advertises BGP EVPN route type 5 updates to the PE and the PE forwards to other PEs.

A.  

The route-target is a BGP extended community.

B.  

It is defined in MP-BGP to allow for overlapping MAC addresses from multiple tenants.

C.  

It is advertised with every EVPN route update.

D.  

It identifies the EVPN instance in the control plane.

A.  

The cluster-id that uniquely identifies the route reflector is only configured on the route reflector itself.

B.  

The leaf's underlay autonomous system number is used for the route reflector EVPN peering sessions.

C.  

A second route reflector can be deployed for redundancy purposes.

D.  

If redundant route reflectors are deployed, the client leaf routers will receive duplicated updates.

A.  

RT-1 Ethernet Auto-Discovery

B.  

RT-2 MAC/IP Advertisement

C.  

RT-3 Inclusive Multicast Ethernet Tag

D.  

RT-4 Ethernet Segment

A.  

It allows the creation of a Layer 2 overlay network that can span the entire data center.

B.  

VXLAN was developed to support EVPN networks in the data center.

C.  

It may use ECMP to provide efficient utilization of the underlay interfaces within the data center.

D.  

It has the capability to isolate up to 16 million different overlays.

A.  

Leaf-1 populates Host-1's MAC address learnt on the local interface to its MAC table.

B.  

Leaf-1 generates an EVPN route-type 5 update with Host-1's MAC address and sends it to the route reflector.

C.  

The route-reflector forwards the EVPN update to Leaf-2 and Leaf-3.

D.  

Leaf-2 and Leaf-3 import the EVPN update based upon the route target.

A.  

The MAC-VRF on Leaf1 and Leaf2 is configured with multi-homing-mode all-active.

B.  

The MAC-VRF on Leaf3 will need to be configured with ECMP to be able to load balance between Leaf1 and Leaf2.

C.  

The host will be required to be configured with a LAG.

D.  

The Ethernet segment ES-1 will be associated to the ports that connect to the host.

A.  

The IP addresses of the leaf routers need to be re-distributed into the WAN.

B.  

The EVPN overlay is transparently carried over the WAN network.

C.  

The leaf routers are able to establish a full mesh of VXLAN tunnels across the WAN.

D.  

The data center gateway routers maintain a MP-BGP EVPN peering with the data center route reflector.

A.  

When a host connected to a Layer 2 EVPN responds to an ARP request, it sends an ARP reply to the local leaf.

B.  

The local leaf replicates the ARP reply and sends it to all the leafs in the flooding list for that Layer 2 EVPN.

C.  

The local leaf learns the source MAC address from the Ethernet frame and populates it into its MAC forwarding table.

D.  

The local leaf generates an EVPN route type 2 and sends it to all of its configured BGP EVPN neighbors.

A.  

One of the connected leaf routers will be elected DF.

B.  

The elected DF will use the AD per EVI update to identify itself as primary.

C.  

Only the elected DF will advertise the customer IP prefix route to the BGP route reflector.

D.  

All connected leaf routers will use an AD per ES update to advertise single-active redundancy.

A.  

Leaf-1 forwards the data for mac-vrf-2 towards Leaf-2 with a VNI of 2.

B.  

Leaf-2 forwards the data for mac-vrf-2 towards the IP-VRF using its IRB interface.

C.  

Leaf-2 IP-VRF consults the ARP table to learn Host-1 MAC address.

D.  

Leaf-2 does a MAC look-up using mac-vrf-1 and forwards the data towards Host-1.

A.  

The route-distinguisher is a unique identifier that is configured per PE and per EVI.

B.  

It is included in each EVPN route update advertisement.

C.  

It is used by MP-BGP to allow for overlapping addresses from multiple tenants.

D.  

It identifies the EVPN instance in the control plane.

A.  

The PE advertises IPv4/IPv6 BGP updates to the CE based on the EVPN routes received from other PEs.

B.  

The PE advertises updates received from the CE as EVPN route type 5 updates to the other PEs.

C.  

iBGP is preferred between the CE and PE so that they will be in the same autonomous system.

D.  

The PE and CE can utilize import and export policies to control the updates that are sent and received.

A.  

Anycast gateway is an optional configuration on the Leaf1 and Leaf2 IRB interfaces.

B.  

The IRB interfaces on Leaf1 and Leaf2 must be configured to advertise learned local host-routes.

C.  

MAC-VRF100 on Leaf1 and Leaf2 must have BGP EVPN and BGP VPN configured.

D.  

IP-VRF1 on Leaf1, Leaf2 and Leaf3 must be configured with a VXLAN-routed interface.

A.  

Allows the other PEs to discover which PEs are connected to the same Ethernet segment.

B.  

Triggers the election of a designated forwarder.

C.  

Identifies the type of algorithm to be used in the election process.

D.  

Identifies the redundancy mode of the Ethernet segment.

A.  

The state is pending because this MAC address was originally associated with a different IP address.

B.  

The traffic will be forwarded to a blackhole if the state changes to duplicate.

C.  

The MAC address will be changed to 00:00:00:00:DE:AD if the state changes to duplicate.

D.  

All traffic destined to 192.168.100.1 will be discarded for 9 minutes if the state changes to duplicate.