Local management interface

This topic provides information about parameters specifying how status information is exchanged between the frame-relay network and the systems attached to it.

The IBM® eServer iSeries™ system uses the local management interface (LMI) to exchange status information between the frame-relay network (or the frame handler system) and systems attached to the network (terminal equipment). The LMI uses data link connection identifier 0 (DLCI 0) to provide verification of the physical connection and status for logical connections.

LMIMODE parameter

Use the LMIMODE parameter on the network interface description to specify the type of LMI exchange done by the iSeries system. You can configure the iSeries system as terminal equipment (*TE), or you can configure the iSeries system as terminal equipment (*ANNEXA). When you specify *TE, you really use ANNEX D, and when you specify *ANNEXA, you really use ANNEX A.

You can also configure the iSeries system to exchange no LMI information (*NONE).

Your LMI type must match the values of the network provider. If ANNEX D or ANNEX A are unavailable, ask the network provider to turn LMI off and set the iSeries to *NONE.

When you make a connection without a network (using a modem eliminator or nonswitched line), you can configure the iSeries system as a frame handler (LMIMODE(*FH)). In this configuration, the iSeries system responds to LMI messages as an FH.