Which command allows you to verify the encapsulation type (CISCO or IETF) for a Frame Relay link?

Which command allows you to verify the encapsulation type (CISCO or IETF) for a Frame Relay

link?

Which command allows you to verify the encapsulation type (CISCO or IETF) for a Frame Relay

link?

A.
show frame-relay lmi

B.
show frame-relay map

C.
show frame-relay pvc

D.
show interfaces serial



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jordan

jordan

R1(config)#int s0/0
R1(config-if)#encap frame
R1(config-if)#frame map ip 172.12.123.3 123 broadcast
R1(config-if)#frame map ip 172.12.123.2 122 ietf broadcast

show frame map shows us that the mapping to DLCI 123 is using Cisco encapsulation, and DLCI 122 is using IETF.

Internet Engineering Task Force (IETF)

The encapsulation frame-relay interface configuration command – enable Frame Relay encapsulation.

To enable Frame Relay on a serial interface:

Go into the interface configuration mode of the interface on which you want to enable Frame Relay.

(optional) Configure Frame Relay encapsulation to use either Cisco or IETF encapsulations. If the encapsulation type is not specified, by default Cisco encapsulation is used.

R1(config)#interface serial 0/0/0
R1(config-if)#encapsulation frame-relay
*Apr 2 02:06:35.020: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to down
R1(config-if)#no encapsulation frame-relay
R1(config-if)#