OSI/AS Configuration and Management Manual

Troubleshooting Guide
OSI/AS Configuration and Management Manual—424119-001
8-66
PTrace and Trace Analysis
The following command displays the number and types of IPPDUs sent and received.
This command also returns the number of frames that were discarded, checksum errors,
and so on:
STATS SERVICE $TSP1.#L3
The following screen is returned for this example:
PTrace and Trace Analysis
LLC type 1 (LLC1) headers are included in the traces. These headers provide the most
useful information in traces of OSI/TS subsystems using TLAM.
Tracing must done against the TLAM line. To read the data frames going in and out, use
the following command:
SELECT DI,DO
You may find, however, that this SELECT command is not limiting enough. If the LAN
is being used for other lines as well, such as TCP/IP or Multilan, the trace may include
much more than just OSI/AS traffic. To filter out the OSI-based LAN traffic, you can
use the FIND feature of PTrace. For example, to display all the TLAM data units that
contain the LSAP %HFE, you would use the following command:
FIND "LSAP : 000254"
Remember that the PTrace FIND command searches for an exact match to the search
string you specify. Therefore, seemingly small considerations—like lowercase or
uppercase letters and insertion of spaces—are important.
OSITS Stats SERVICE $TSP1.#L3
Reset Time.. 16 OCT 1991, 10:53:40.901
Sample Time. 16 OCT 1991, 12:23:33.373
IPPDUs-sent....................... 92
IPPDUs-received................... 96
IPOctets-sent..................... 6248
IPOctets-received................. 6906
IPDiscardAddr..................... 0
IPDiscardAddrThld................. 0
IPDiscardCong..................... 0
IPDiscardCongThld................. 0
IPDiscardGen...................... 0
IPDiscardGenThld.................. 0
IPDiscardLife..................... 0
IPDiscardLifeThld................. 0
IPDiscardReasm.................... 0
IPDiscardReasmThld................ 0
IPDiscardUnsup.................... 0
IPDiscardUnsupThld............... 0