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Configuring basic DCE-side Frame Relay
Ste
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter the view of the interface
connecting to the Frame Relay
network.
interface interface-type
interface-number
N/A
3. Enable Frame Relay
encapsulation on the
interface.
link-protocol fr
By default, PPP encapsulation is
enabled on interfaces except
Ethernet interfaces, VLAN
interfaces, and ATM interfaces.
4. (Optional.) Configure the
encapsulation type for the
Frame Relay interface.
fr encapsulation { ietf |
nonstandard }
The default setting is IETF.
5. (Optional.) Set the Frame
Relay interface type to DCE or
NNI.
fr interface-type { dte | nni } The default setting is DTE.
6. (Optional.) Configure the
Frame Relay LMI protocol
type.
fr lmi type { ansi | nonstandard |
q933a }
The default setting is q933a.
7. (Optional.) Set the DCE-side
N392 counter.
fr lmi n392dce n392-value The default setting is 3.
8. (Optional.) Set the DCE-side
N393 counter.
fr lmi n393dce n393-value The default setting is 4.
9. (Optional.) Set the DCE-side
T392 timer.
fr lmi t392dce t392-value The default setting is 15 seconds.
Configuring local Frame Relay virtual circuits
On a DCE or NNI main interface or subinterface, the virtual circuit must be manually created.
On a DTE main interface, virtual circuits can be automatically created according to the settings received
from the DCE side or manually created.
On a DTE subinterface, the virtual circuit must be manually created.
Configuration restrictions and guidelines
When you configure local Frame Relay virtual circuits, follow these restrictions and guidelines:
• When manually creating virtual circuits on a DTE interface, make sure their DLCIs are the same as
those used on the DCE.
• If the DLCI of a virtual circuit is changed on a DCE interface, perform one of the following tasks to
enable the DTE to quickly relearn the correct address-to-DLCI maps. Before performing either of the
tasks above, make sure no services will be interrupted.
{ Reset both the DCE and DTE interfaces.
{ Execute the reset inarp command on both ends.