Configuring Frame Relay Over Mpls; Configuring Frame Relay Over Mpls With Dlci-To-Dlci Connections - Cisco 10000-2P2-2DC Software Configuration Manual

Configuration Tasks for L2VPN

Configuring Frame Relay over MPLS

Frame Relay over MPLS encapsulates Frame Relay protocol data units (PDUs) in MPLS packets and
forwards them across the MPLS network. For Frame Relay, you can set up data-link connection identifier
(DLCI)-to-DLCI connections or port-to-port connections.
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Note
You can configure Frame Relay over MPLS in the following ways:
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Configuring Frame Relay over MPLS with DLCI-to-DLCI Connections

To configure Frame Relay over MPLS with DLCI-to-DLCI connections, enter the following commands
beginning in global configuration mode:
Command
Step 1
Router(config)# frame-relay switching
Step 2
Router(config)# interface serial slot/port
Step 3
Router(config-if)# encapsulation
frame-relay [cisco | ietf]
Step 4
Router(config-if)# frame-relay intf-type
dce
Step 5
Router(config-if)# exit
Cisco 10000 Series Router Software Configuration Guide
20-28
With DLCI-to-DLCI connections, the PE routers manipulate the packet by removing headers,
adding labels, and copying control word elements from the header to the PDU.
With port-to-port connections, you use HDLC mode to transport the Frame Relay encapsulated
packets. In HDLC mode, the entire HDLC packet is transported. Only the HDLC flags and FCS bits
are removed. The contents of the packet are not used or changed, including the FECN, BECN, and
DE bits.
Frame Relay traffic shaping is not supported with AToM-switched VCs.
Configuring Frame Relay over MPLS with DLCI-to-DLCI Connections, page 20-28
Configuring Frame Relay over MPLS with Port-to-Port Connections, page 20-29
Enabling Other PE Devices to Transport Frame Relay Packets, page 20-30
Chapter 20
Purpose
Enables permanent virtual circuit (PVC) switching on a Frame
Relay device.
Specifies a serial interface and enters interface configuration
mode.
Specifies Frame Relay encapsulation for the interface.
You can specify different types of encapsulations. You can set
one interface to Cisco encapsulation and the other interface to
IETF encapsulation.
Specifies that the interface is a DCE switch. You can also
specify the interface to support NNI and DTE connections.
Exits from interface configuration mode.
Configuring L2 Virtual Private Networks
OL-2226-23