What can be done to Frame Relay to resolve split-horizon issues?(Choose two.)
A.
Disable Inverse ARP.
B.
Create a full-mesh topology.
C.
Develop multipoint subinterfaces.
D.
Configure point-to-point subinterfaces.
E.
Remove the broadcast keyword from the frame-relay map command.
Explanation:
IP split horizon checking is disabled by default for Frame Relay encapsulation to allow routing
updates to go in and out of the same interface. An exception is the Enhanced Interior Gateway
Routing Protocol (EIGRP) for which split horizon must be explicitly disabled. Certain protocols such as
AppleTalk, transparent bridging, and Internetwork Packet Exchange (IPX) cannot be supported on
partially meshed networks because they require split horizon to be enabled (a packet received on an
interface cannot be transmitted over the same interface, even if the packet is received and
transmitted on different virtual circuits).
Configuring Frame Relay subinterfaces ensures that a single physical interface is treated as multiple
virtual interfaces. This capability allows you to overcome split horizon rules so packets received on
one virtual interface can be forwarded to another virtual interface, even if they are configured on
the same physical interface.