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.  

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.  

The IRB sub-interface must be configured as either type bridge or routed.

B.  

A MAC-VRF can be configured with multiple IRB sub-interfaces to support multi-homing.

C.  

When the IRB sub-interface is configured with multiple IP addresses, one of them can be configured as the primary.

D.  

When using an IRB interface to interconnect a MAC-VRF to an IP-VRF, one sub-interface is configured for the MAC-VRF and another one for the IP-VRF.

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 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.  

The remote host's IP address is 100.0.2.3.

B.  

The MAC address 00:00:00:00:00:01 was learned through the data plane.

C.  

The MAC address associated to the vxlan-interface will not age out.

D.  

The VXLAN network identifier configured for this MAC-VRF is 100.

A.  

Leaf-1 sends a route-type 2 EVPN update with host-1's MAC with the IP address set to 0.0.0.0 to the remote peers.

B.  

Leaf-1 sends a route-type 2 EVPN update with host-1's MAC with the IP address set to 192.168.100.1 to the remote peers.

C.  

The remote peers ignore the EVPN update with the IP address set to 0.0.0.0 and use the update with the IP address set to 192.168.100.1 to populate their MAC forwarding tables.

D.  

The remote peers generate a gratuitous ARP towards their directly connected hosts to announce the learned IP/MAC mapping information.

A.  

Host routing

B.  

Prefix routing interface-less

C.  

Prefix routing interface-ful numbered

D.  

Prefix routing interface-ful unnumbered

A.  

The base BGP instance to support vpn-ipv4 and evpn address families.

B.  

A routed VXLAN interface for the VPRN instance.

C.  

A binding of the VPRN instance to the MPLS tunnels towards dcgw20.

D.  

A vrf-target matching the vrf-target on dcgw20 in the VPRN instance.

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.  

One of the leaf routers will be elected DF.

B.  

All connected leaf routers will use single active redundancy.

C.  

The AD per EVI update will be used to identify which connected leaf is primary.

D.  

All traffic destined to 40.40.40.0/24 will be forwarded through Leaf3 due to the BGP connection to the CE VNF.

A.  

The ingress PE performs both MAC and IP forwarding.

B.  

The egress PE performs MAC forwarding only.

C.  

EVPN route-type 5 must be supported by the PEs involved.

D.  

Each MAC-VRF used in the L3 EVPN network must exist on each PE.

A.  

A sub-interface of lag1 is associated to the MAC-VRF on Leaf1 and Leaf2.

B.  

The Ethernet segment ES-1 is configured with multi-homing-mode all-active.

C.  

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

D.  

The host will forward all BUM traffic toward the DF.

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.  

The original PE advertises the locally learned MAC with the sequence number set to a maximum value.

B.  

A PE advertising a local MAC that was previously learned through EVPN, will decrement the sequence number in its update.

C.  

The originating PE generates a withdraw message after the same locally learned MAC has aged out.

D.  

The originating PE and the destination PE must synchronize their MAC tables.

A.  

Leaf1

B.  

Leaf2

C.  

Leaf3

D.  

Leaf4