Frame Relay Frame Relay Frame Relay

Frame Relay

Frame Relay

Frame Relay is an International Telecommunications Standards Sector (ITU-T) and American National Standard Institute (ANSI) standard.

Frame Relay is a packet-switched connection oriented WAN service

Frame Relay is often used to interconnect LANs

The connection through the Frame Relay network between two DTEs is called a virtual circuit (VC)

Switched virtual circuits (SVCs) are established dynamically by sending signaling messages to the network.

Permanent virtual circuits (PVCs) are preconfigured by the carrier

Frame Relay is configured on a serial interface and the default encapsulation type is the Cisco proprietary version of HDLC

By default, a Frame Relay network provides non-broadcast multi-access (NBMA) connectivity between remote sites

To enable the forwarding of broadcast routing updates in a hub-and-spoke Frame Relay topology, configure the hub router with logically assigned interfaces, called subinterfaces

Subinterfaces are logical subdivisions of a physical interface

Frame Relay Overview

Frame Relay Overview

Frame Relay Overview

Frame Relay Overview

LMI Types

DLCIs

LMI Purpose

LMI

Inverse ARP

Frame Relay Mapping

Frame Relay Operation - Switching

Subinterfaces

Point to Point Subinterfaces

Multipoint Subinterfaces

Multipoint Subinterfaces

Configuring Basic Frame Relay

Configuring Frame Relay

Configuring Frame Relay

Configuring Frame Relay

Configuring Frame Relay

Optional Commands

Configuring Subinterfaces

Configuring Subinterfaces (cont’d)

Configuring Subinterfaces (cont’d)

Frame Relay Subinterfaces

Configuring Point-to-Point Subinterfaces

Verifying Frame Relay

Frame Relay is an International Telecommunications Standards Sector (ITU-T) and American National Standard Institute (ANSI) standard.

Frame Relay is a packet-switched connection oriented WAN service

Frame Relay is often used to interconnect LANs

The connection through the Frame Relay network between two DTEs is called a virtual circuit (VC)

Switched virtual circuits (SVCs) are established dynamically by sending signaling messages to the network.

Permanent virtual circuits (PVCs) are preconfigured by the carrier

Frame Relay is configured on a serial interface and the default encapsulation type is the Cisco proprietary version of HDLC

By default, a Frame Relay network provides non-broadcast multi-access (NBMA) connectivity between remote sites

To enable the forwarding of broadcast routing updates in a hub-and-spoke Frame Relay topology, configure the hub router with logically assigned interfaces, called subinterfaces

Subinterfaces are logical subdivisions of a physical interface

Frame Relay