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Updated readme file for mstpcap utility with new scan feature and additional statistics.

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skarg
2011-04-13 20:17:50 +00:00
parent 061dc251a5
commit 6cfdde92d7
1 changed files with 32 additions and 11 deletions
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bacnet-stack/demo/mstpcap/mstpcap.txt
+31 -10
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@@ -7,15 +7,33 @@ code in it, and will contain up to 65535 packets. A new file
will be created at each 65535 packet interval. The tool can
be stopped by using Control-C.
Here is a sample of the tool running (use CTRL-C to quit).
D:\code\bacnet-stack\bin>mstpcap COM3 38400
Adjusted interface name to \\.\COM3
mstpcap: Using \\.\COM3 for capture at 38400 bps.
mstpcap: saving capture to mstp_20090729123548.cap
1400 packets
MAC MaxMstr Tokens Retries Treply Tusage Trpfm Tder Tpostpd
0 0 525 0 32 0 0 0 0
1 127 525 0 16 79 0 0 0
Here is a sample of the tool running (use CTRL-C to quit):
D:\code\bacnet-stack>bin\mstpcap.exe com54 38400
Adjusted interface name to \\.\COM54
mstpcap: Using \\.\COM54 for capture at 38400 bps.
mstpcap: saving capture to mstp_20110413134119.cap
3200 packets, 0 invalid frames
MAC MaxMstr Tokens Retries PFM Treply Tusage Trpfm Tder Tpostpd
0 1 557 0 32 11 47 0 0 0
2 0 557 0 47 0 0 0 0 0
3 4 557 0 32 11 110 0 0 0
5 6 558 0 31 11 78 0 0 0
7 127 557 1 31 404 63 0 0 0
Node Count: 5
Invalid Frame Count: 0
The files that are captured can also be scanned to give some statistics:
D:\code\bacnet-stack>bin\mstpcap.exe --scan mstp_20110413134119.cap
Scanning mstp_20110413134119.cap
3223 packets
MAC MaxMstr Tokens Retries PFM Treply Tusage Trpfm Tder Tpostpd
0 1 557 0 32 11 47 0 0 0
2 0 557 0 47 0 0 0 0 0
3 4 557 0 32 11 110 0 0 0
5 6 558 0 31 11 78 0 0 0
7 127 557 1 31 404 63 0 0 0
Node Count: 5
Invalid Frame Count: 0
The BACnet MS/TP capture tool also includes statistics which are
listed for any MAC addresses found passing a token,
@@ -23,13 +41,16 @@ or any MAC address replying to a DER message.
The statistics are emitted when Control-C is pressed, or when
65535 packets are captured and the new file is created.
The statistics are cleared when the new file is created.
The statistics can be emitted from a file using the "--scan" option.
MaxMstr = highest destination MAC address during PFM
Tokens = number of tokens transmitted by this MAC address.
Tokens = number of Token frames sent from this MAC address.
Retries = number of second tokens sent to this MAC address.
PFM = number of Poll-For-Master frames sent from this MAC address.
Treply = maximum number of milliseconds it took to reply with
a token after receiving a token. Treply is required to be less
than 25ms (but the mstpcap tool may not have that good of