Command Reference Guide

142 ● fr interface-type 3Com Router 5000 Family and Router 6000 Family

Command Reference

fr interface-type

Purpose Use the fr interface-type command to set the Frame Relay interface type.

Use the undo fr interface-type command to restore the default Frame Relay

interface type.

Syntax fr interface-type { dce | dte | nni }

undo fr interface-type

Parameters dte, dce and nni

Three types of Frame Relay interfaces.

Default By default, the frame relay interface type is DTE

Example Set the type of the Frame Relay interface Serial1/0/0 to DCE.

[3Com] interface Serial1/0/0

[3Com-Serial1/0/0] fr interface-type dce

View This command can be used in the following views:

■ Interface view

Description In Frame Relay, there are two communicating parties, namely, the user side and

network side. The user side is called Data Terminal Equipment (DTE), and the network

side is called Data Communications Equipment (DCE). In a Frame Relay network, the

interface between the Frame Relay switches is Network-to-Network Interface (NNI),

and the corresponding interface adopts the NNI operating view. If the device is used

as Frame Relay switching, the Frame Relay interface should operate in the NNI view or

DCE mode. NE16E/08E/05 routers support the three modes.

In NE16E/08E/05 routers, while configuring the Frame Relay interface type as DCE or

NNI, it is unnecessary to perform the

fr switching command in the System view.

Please notice that this is different from Cisco.