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Solstice X.25 9.2 Developer's Guide

11.1.2 Message Primitive Sequence Summary

LLC2

The diagram below summarizes the order that the DLPI message primitives are used to establish a connection and transfer data in connection oriented mode when LLC2 is used:

Graphic

The file /opt/SUNWconn/x25/samples.dlpi/llc2.c contains an example.

LAPB

The diagram below summarizes the order that the DLPI message primitives are used to establish a connection and transfer data in connection oriented mode when LAPB is used:

Graphic

When using LAPB, the connect phase is handled automatically by the network. The LAPB protocol automatically establishes the connection as soon as the cable has been plugged in. The connect indicator CONNECT_IND will automatically notify the user when the connection has been established.

The file /opt/SUNWconn/x25/samples.dlpi/lapb.c contains an example.