HP rp5450 HP DLPI Programmer's Guide - Page 47
Message Flow: DLS User-Invoked Connection Reset
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Figure 1-23 Figure 1-24 Introduction to DLPI DLPI Services • No DLSDU transmitted by a DLS user after the synchronization mark in that transmitted stream will be delivered to the other DLS user before the synchronization mark in that received stream. The complete message flow depends on the origin of the reset, which may be the DLS provider or either DLS user. Figure 1-23 illustrates the message flow for a reset invoked by one DLS user. Message Flow: DLS User-Invoked Connection Reset DL_RESET request DL_RESET indication DL_RESET confirm DL_RESET response DL_OK acknowledge Figure 1-24 illustrates the message flow for a reset invoked by both DLS users simultaneously. Message Flow: Simultaneous DLS User-Invoked Connection Reset DL_RESET request DL_RESET request DL_RESET confirm DL_RESET confirm Chapter 1 47