SNA Link/iX Node Managers Guide (30291-90009)

100 Chapter4
SNA Node Startup and Shutdown
Establishing PU-SSCP Sessions on the HP 3000
Establishing PU-SSCP Sessions on the
HP 3000
For each node you configure on the HP 3000, a corresponding T2.0 or
T2.1 node should be in the remote system configuration. Figure 4-1
shows how a session is established between the SSCP on the remote
system and the PU on the HP 3000 node (either a T2.0 node or a T2.1
node). The remote system sends out a poll on the data link, in the form
of a Set Normal Response Mode (SNRM), and continues to poll the link
until it receives a positive response from the HP 3000. The HP 3000
node is activated with the SNACONTROL START command (see Chapter
6 , “MPE Commands,” in this manual). The SSCP then sends an
ACTivate PU (ACTPU) request to the HP 3000 PU. SNA Transport, as
the PU services manager, sends a positive response back to the SSCP.
The PU-SSCP session is now established.