Copyright 2003 DLCI The data-link connection identifier (DLCI) is stored in the Address field of every frame transmitted.
Copyright 2003 Terminology The connection through the Frame Relay network between two DTEs is called a virtual circuit (VC). Virtual circuits may be established dynamically by sending signaling messages to the network. In this case they are called switched virtual circuits (SVCs).
Copyright 2003 Frame Relay Stack Layered Support
Copyright 2003 Configuring a Static Frame Relay Map
Copyright 2003 Reachability Issues with Routing Updates in NBMA By default, a Frame Relay network provides nonbroadcast multiaccess (NBMA) connectivity between remote sites. An NBMA environment is treated like other multiaccess media environments, where all the routers are on the same subnet.
Copyright 2003 Verifying Frame Relay The show interfaces command displays information regarding the encapsulation and Layer 1 and Layer 2 status. It also displays information about the following: –The LMI type –The LMI DLCI –The Frame Relay data terminal equipment/data circuit-terminating equipment (DTE/DCE) type
Copyright 2003 The show frame-relay lmi Command
Copyright 2003 The show frame-relay pvc Command
Copyright 2003 The show frame-relay map Command
Copyright 2003 Troubleshooting Frame Relay Use the debug frame-relay lmi command to determine whether the router and the Frame Relay switch are sending and receiving LMI packets properly.