ACC X.25/ISDN Data Analyzer User's Guide

Appendix B 59
Network Configuration
Setting Up the Network Configuration File
ZLU Definitions
Finally the ZLUs to be used for the Analyzer session must be defined.
Take care to define these carefully since errors in these definitions may
not be detected by ttgen. If there are such errors they may not be
detected until the ports are used.
Term 0019 0:2 HDLC.FRAME 0 0 90 20 1 0 0 ”Protocol Analyzer”
Term 0020 0:3 HDLC.FRAME 0 0 90 19 2 0 0 ”Protocol Analyzer”
Term 0021 0:4 HDLC.FRAME 0 0 90 22 1 0 0 ”Protocol Analyzer”
Term 0022 0:5 HDLC.FRAME 0 0 90 21 2 0 0 ”Protocol Analyzer”
Term 0023 0:6 HDLC.FRAME 0 0 90 24 1 0 0 ”Protocol Analyzer”
Term 0024 0:7 HDLC.FRAME 0 0 90 23 2 0 0 ”Protocol Analyzer”
FollowthestepsbelowtoconfiguretheZLUs,refertotheexamples
above for clarification. In the example, ZLUs 19 and 20 form an analyzer
pair, so do 21 and 22, and 23 and 24.
• Choose ZLU numbers for each of the analyzer ports so they are
unique within the whole ttgen configuration file.
• Note the ZLU numbers for each a nalyzer pair; there should a lways be
an even number of analyzer ZLUs.
• Set the mux:port numbers so t hey correspond to the ports defined in
the “Port Definitions” section.
• Select the HDLC.FRAME protocol for each of t he analyzer ZLUs, and
set the “poll” and “select” configuration parameters to zero (0) .
• Set the Application numb er to 90. If this is not set correctly the
pcapture and pdisplay programswillnotbeabletofindtheanalyzer
ZLUs. (Use the pdisplay command show when the software is
running, to ensure the ZLUs have been correctly configured.)
• Set the parameter after the 90 (application number) to the partner
ZLU number. In the example, the partner ZLU for 19 is 20, for 21 is
22, etc.
• Set the next parameter to 1 if the port is to be the DTE (TX monitor)
port, and 2 if it is to be the DCE (RX monitor port). N ote that the
DTE/DCE definitions for partner ZLUs must be different.
• Set the last two parameters to 0.
• The port description (“Protocol Analyzer,” above) may have any string
of up to 30 characters. This is a comment field and its value will not
affect the analyzer operation. T he field is displayed by ZMNTR and