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Introduction to DLPI
DLPI Services
Figure 1-25 Message Flow: DLS Provider-Invoked Connection Reset
DL_RESET indication
DL_RESET response
DL_OK acknowledge
DL_RESET indication
DL_RESET response
DL_OK acknowledge
Figure 1-26 illustrates the message flow for a reset invoked simultaneously by one DLS user and the DLS provider.
Figure 1-26 Message Flow: Simultaneous DLS User & DLS Provider-Invoked Connection Reset
DL_RESET request
| DL_RESET |
| indication |
| DL_RESET |
DL_RESET | response |
confirm | DL_OK |
| |
| acknowledge |
Connectionless-mode Services
The
Once a stream has been initialized via the local management services, it may be used to send and retrieve connectionless data units.
Connectionless Data Transfer
The connectionless data transfer service provides for the exchange of user data (DLSDUs) in either direction or in both directions simultaneously without having to establish a data link connection. Data
Chapter 1 | 43 |