Westermo MR Series - Manual (Page 35)

35 6622-3201
Web Interface and Command Line Reference Guide www.westermo.com
Confi gure > Analyser 4.5
Your unit can be configured to maintain a trace of activity taking place at the various ports and of
the layer 2 and 3 protocols. Trace information is stored in a circular buffer in memory. When the
buffer is full, the storage of new trace data starts at the beginning of the buffer again (overwriting
the oldest data). This buffer appears in the file directory as a pseudo-file called “ANA.TXT”.
The following is a typical trace showing activity on the D-channel:
----- 4-5-2002 13:11:50.260 ------
L2 DCHAN SABME from NT to TE: COMMAND POLL SAPI=10, TEI=01,
42,03,7F,
--------- ----- 4-5-2002 13:11:50.260 ------
L2 DCHAN UA from TE to NT: RESPONSE FINAL SAPI=10, TEI=01,
42,03,73,
----- 4-5-2002 13:11:50.330 ------
L2 DCHAN I FRAME from NT to TE: COMMAND SAPI=10, TEI=01,
NS=00, NR=00,
42,03,00,00,
X25 RESTART from DCE to DTE:
LCG=0 LCN=0 PTI
10, 00, FB,
07 00 ..
---------
----- 4-5-2002 13:11:50.330 ------
L2 DCHAN I FRAME from TE to NT: COMMAND SAPI=10, TEI=01, NS=00,
NR=01, 40,03,00,02,
X25 RESTART CONFIRMATION from DTE to DCE:
LCG=0 LCN=0 PTI
10, 00, FF,
Both B and D-channel analysis can be enabled simultaneously if necessary and you can select which
LAPB and LAPD sources you wish to include in the trace by checking the appropriate boxes.
Traffi c capture fi les for use with Ethereal / Wireshark
Depending on the source options chosen, the analyser trace will capture specific traffic into .cap
files. These files can then be opened with Wireshark (formerly Ethereal). The 3 files are stored in
the unit’s memory and will be retained during a warm reboot but cleared in the event of a power
failure.
The .cap files and the traffic captures they contain are:
Capture file name Contents
anaeth.cap Ethernet traffic
anappp.cap PPP traffic
anaip.cap IP traffic
Using the Web Page(s)
The Configure > Analyser web page allows you to turn the analyser “On” or “Off” and to deter-
mine what information is included in the trace using the following parameters:
Analyser:
This parameter is used to turn the protocol analyser “On” or “Off”.