To enable Frame Relay on the interface, issue the encapsulation frame relay command. The
encapsulation of the interface determines the way it should act because each encapsulation is
technologyspecific.
The encapsulation specified at this point dictates the Layer 2 framing characteristics of the packet
passed to this specific interface from Layer 3. Once the Layer 2 framing is established, the resulting frame
can be passed down to the physical layer for transmission.